Home

User`s Manual - Agilent Technologies

1. Threshold ranges Filter Impulse Noise dBm Psophometric 60 to 20 Channel 50 to 0 275 3250 Hz flat 50 to 0 750 2300 Hz flat 50 to 0 E filter 60 to 20 F filter 50 to 20 G filter 40 to 20 23 Tone Test Signal TX 23 frequencies in the range 203 Hz to 3640 Hz TXIRX Level 40 dBm to 6 dBm EDD 10 000 microseconds S TD 10 to 45 dB IMD 2nd and 3rd order IMD products for 20 to 60 dB below signal level SIN 10 to 45 dB Test results Range PSD and Power Spectrum Spectrum resolution Frequency Range Resolution 50 Hz to 10 kHz 31 25 Hz 304 Hz to 103 kHz 304 Hz 10 9 kHz to 1 99 MHz 3 65 kHz 15 7 Specifications TIMS Test Specifications TIMS Test and Measurement Characteristics continued Characteristic Specification Display resolution Frequency Range Resolution 50 Hz to 10 kHz 331 points 304 Hz to 103 kHz 340 points 10 9 kHz to 1 99 MHz 545 points SRL ERL Test TX Signal 3 frequency sweeps 260 Hz to 500 Hz SRL Low 2200 Hz to 3400Hz SRL High 560 Hz to 1965 Hz ERL compatible with IEEE 743 1995 Sect 8 4 TX Accuracy 0 5 dB Receiver Characteristics see page 15 4 RX Accuracy amp Range 2 wire 0 5dB over range of OdB to 40 dB 4 wire 0 5dB over range of OdB to 40 dB Cap amp Loop Length Capacitance Range 50 nF to 550 nF Wire standards 83 nF mi and 51 nF km Accuracy 1 DC Voltage Measure Range 0 to 204
2. Transmitter Controls and Indicators Selecting the Attenuation and Group Delay Distortion test automatically configures the test signal 9 11 TIMS Transmission Test Screens Reference Attenuation amp Group Delay Distortion Screen Receiver Controls Masks Button This button opens the Tolerance Masks menu which offers a choice of four tolerance masks or None The masks sometimes called disturber masks are defined by ITU T Recommendations For example mask M 1020 is defined by ITU T Recommendation M 1020 The masks are used to check whether special leased circuits are conditioned to provide specified attenuation and group delay distortion Tolerance Masks Cancel AD Tab The AD tab presents a graph showing difference between send and receive levels of the 23 tones y axis as a function of frequency x axis Attenuation dB bd S 0 800 1600 2400 3200 Frequency Hz 9 12 TIMS Transmission Test Screens Reference Attenuation amp Group Delay Distortion Screen GDD Tab The Group Delay Distortion GDD tab presents a graph showing group delay y axis as a function of frequency x axis ere AAA Cursor B g o gt m Group Delay mSec N 1844 Hz 0 0 mSec 1000 2000 3000 4000 Frequency Hz Cursor Button
3. 1 Connect the testers to the line or lines being tested 2 Tap Select Test The Select Test window opens Select a Test Transmission Noise Loop Advanced 23 Tone Test Phase Hits Level EDD Amplitude Hits S TD IMD S N and Interruptions Signal to Total Distortion with Phase Jitter Holding Tone Attenuation and Group Delay Distortion Calibrate Performing TIMS Transmission Tests Single Frequency Level and Attenuation Single FLA Test 3 Under the Transmission tab tap Single Frequency Level and Attenuation The Single FLA Test screen opens IN1626A TIMS Single E Level amp Attenuation Test lt SFLA gt 00 00 00 Eu Stop EIS ni Measurement Signaling ud Test Telset Start PL Receiver lt P2 gt nO RX Attenuation 10 kHz lt Range 1 gt Expected Frequency ange Filters TX Level a Bridge Q Hold TX Setup RX Setup m Reference Level 60 E ema 3r Transmitter lt Pi gt HrTc7 5N PeT Ie Level dBm stat __N16104 Service ad 16264 Tims 49 9 12 4 Pm S 4 Configure each tester using the TX and RX setup controls on the left side of the screen see Setting Up the Transmitter and Receiver TX RX Setup page 2 7 5 Use the Transmitter Frequency and Level buttons to configure the transmit signal see page 8 13 and page 8 14 If the line carries tones for
4. Test Modes The Test Mode button opens the Select a Test Mode window where you can configure the TIMS Module for specialized functions Select a Test Mode Loopback Measure Loopback Passive Test Mode Quiet Termination Measure Quiet Termination Passive Cancel Normal Operation The default places the module in test mode Loopback Measure Activates loopback mode P1 A amp B connected to P2 A amp B see the illustration below turns off the transmitter and places the RX port in bridge mode so RX measurements can be made TIMS Loopback mode Transmitter P1 Receiver 82 Loopback Measure applies bridge mode to RX turns off transmitter Loopback Passive Activates loopback mode see the illustration above and turns off both transmitter and receiver TIMS Reference Test Modes Quiet Termination Measure Places the module s TX port in quiet termination mode with the selected TX impedance and the transmitter off and allows measurements at the RX port Quiet Termination Passive Places the module s TX port in quiet termination mode using the selected TX impedance The module s transmitter and receiver are both off 8 9 TIMS Reference Filters Filters The Filters button opens the Select Filters window which shows the filters available for the current test Tap a button to select a filter then tap OK Cancel closes the wind
5. Agilent Technologies Limited Warranty Statement Agilent Product N1626A Service Advisor xDSL TIMS Test Module Duration of Limited Warranty Three years 1 Agilent warrants to you the end user customer that Agilent hardware accessories and supplies will be free from defects in materials and workmanship after the date of purchase for the period specified above If Agilent receives notice of such defects during the warranty period Agilent will at its option either repair or replace products which prove to be defective Replacement products may be either new or equivalent in performance to new 2 Agilent warrants to you that Agilent software will not fail to execute its programming instructions after the date of purchase for the period specified above due to defects in material and workmanship when properly installed and used If Agilent receives notice of such defects during the warranty period Agilent will replace software which does not execute its programming instructions due to such defects 3 Agilent does not warrant that the operation of Agilent products will be uninterrupted or error free If Agilent is unable within a reasonable time to repair or replace any product to a condition as warranted you will be entitled to arefund of the purchase price upon prompt return of the product 4 Agilent products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use 5 War
6. Longitudinal Balance Test This test uses a test signal to find the longitudinal balance of a twisted pair line Longitudinal balance is the ratio of the longitudinal voltage measured to ground to the metallic voltage between conductors expressed in dB The test signal frequency can range from voice to 200 KHz If signal couplings the twisted pair and the CO termination are not all perfectly balanced slightly unequal currents will flow in the two conductors of the twisted pair This can result in the conversion of part of the longitudinal signal into a metallic signal For more information on the Longitudinal Balance Test screen see page 11 5 Longitudinal Balance Measurement TIMS TX RX mode Quiet TXIRX Termination To run a longitudinal balance test 1 Connect the twisted pair being tested to the TX port of the tester Quiet termination is required at the far end of the twisted pair 2 Ground the sleeve or shield of the test cable to an earth ground point Note The tester s ground lug is a safety ground only It is isolated from the test cable s shield by a 10 MOhm resistor If the sleeve or shield of the test cable is not earth ground this measurement will be inaccurate 3 Tap the Select Test button The Select a Test window opens Performing TIMS Loop Tests Longitudinal Balance Test 4 Under the Loop tab tap Longitudinal Balance The Longitudinal Balance Test window opens 00 00 00 IN16
7. Navigating the User Interface To navigating the tablet s interface Select options and activate buttons by tapping the item on the screen Use your finger or the stylus that came with the tablet The stylus is stored in the back of the module bay Select OK to activate a selection Cancel closes the current window without implementing any changes When you select an option that requires a numeric value the software opens a keypad containing touch selectable digits and options Tap the appropriate buttons to specify a field value The Clear button erases the values displayed Tap OK to enter the value displayed or Cancel to close the keypad window without specifying a new value Keypad windows close when Cancel or OK are tapped Close the program by selecting Exit from the File menu See File page 8 3 1 7 Getting Started The TIMS User Interface Stopping TIMS Module Software To stop the TIMS software and close the TIMS interface l In the File menu tap Exit A window opens asking if you re sure you want to shut down TIMS Tap YES to shut down TIMS The TIMS interface closes and the Service Advisor Manager displays Shutting down the Tablet To shut down the Service Advisor tablet 1 Note Tap ShutDown at the top right of the Service Advisor Manager screen A window opens asking if you want to shut down the Service Advisor Tap YES to shut down the tablet The tablet stops any active tests cl
8. Ra9 9 11 5 AM 5 12 Performing TIMS Loop Tests Load Coil Detection Test 4 Tap Start at the top of the screen to begin the test 5 Allow 11 seconds for the test to run then observe the Receiver display for test results rE Estimated Load Coils 0 YW h 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Frequency Hz 2 e Normalized Voltage 2 a N 5 13 Performing TIMS Loop Tests Test Loop 430 Ohm Test Test Loop 430 Ohm Test This test measures the current flow in the local loop with a 430 Ohm load applied It is useful for determining whether there is sufficient loop current for various types of service For more information on the Test Loop 430 Ohm Test screen see page 11 9 Note This test requires live battery voltage from the exchange If no dc voltage is present the loop current is 0 To run a 430 Ohm Loop test 1 Connect the tester to the line 2 Tap Select Test The Select a Test window opens 3 Under the Loop tab tap Test Loop 430 Ohm The Test Loop 430 Ohm Test window opens IN1626A TIMS Test Loop 430 S Test 00 00 00 ou Reverse Normal Operation Impedance Te Rida o aw Bridge Hold Filters TX Setup za 8 Pass Fail RX Criteria mom pee Transmitter lt P1 gt erie FE EHNE Sr start 1610 service Ad 16265 Tims RDI
9. The Receiver indicators display impulse noise counts and visual displays of the number of impulse noise spikes detected at each threshold level between 0 and 1 000 The level of the noise spike determines in which group or groups the noise spike is counted Low The number of times the noise level exceeded the low level impulse noise threshold see Set Low Threshold Middle The number of times the noise level exceeded the middle level impulse noise threshold which is 4 dB above the low level threshold High The number of times the noise level exceeded the high level impulse noise threshold which is 8 dB above the low level threshold Set Low Threshold Opens a keypad to set the low level threshold between 30 and 95 dBrn The default value is 77 dBrn The middle and high level thresholds are automatically set 4 dB and 8 dB above the low level threshold 10 8 TIMS Noise Test Screens Reference Noise Balance Test Screen Noise Balance Test Screen This screen controls a test that measures the metallic noise level power influence and noise balance in a twisted pair line The metallic noise measurement represents a weighted noise value and includes background noise and tones Power influence is a measurement of ac noise from power lines The balance measurement is equal to power influence minus noise IN1626A TIMS Noise Balance Test 00 00 00 gs amp J FS Eile Measurement Signaling Auto Test sss Re
10. dBm Attenuation Reference Level 60 73 Low limit flag 2 5 Using the TIMS Module Setting Up a TIMS Test Changing the Default Pass and Fail Limits The File Save feature allows you to save the current set of pass and fail limits then use them as default values in future tests To save the current limit settings as the default limits l In the File menu tap Save A window opens asking if you want to save the current settings Would you like to save the current configuration settings Tap YES to save the current settings as defaults Restoring the Factory Default Limits Note When the tester starts the last set of limits that was saved is used as defaults To restore the factory settings as defaults complete the procedure below To restore the factory set default pass and fail settings 1 2 6 In the File menu tap Open A window opens asking if you want to restore the default settings Would you like to restore default configuration settings Tap YES to restore the factory set default limits Using the TIMS Module Setting Up a TIMS Test Setting Up the Transmitter and Receiver TX RX Setup Use the TX RX setup controls on the left side of the screen to set the basic configuration of the TIMS module s P1 and P2 ports Indicators show the current configuration as follows E Green indicates that an item is selected xO rx Rx x Yellow used only in bridge
11. Attenuation dB o LI TX Setup RX Setup TXIRX TX RX Mode EI an BEI start __N1610A Service Adv J 16265 TMS R83 2 09 Pm S 0 800 1600 2400 3200 Frequency Hz 3 17 Performing TIMS Transmission Tests Attenuation and Group Delay Distortion Test 4 Tap the Masks button at the top of the Receiver window of the receiving TIMS tester The Tolerance Masks menu opens See Masks Button page 9 12 for more information Tolerance Masks 5 Tap the appropriate mask The Tolerance Masks menu closes 6 Tap Start at the top of the screen and observe the Receiver window for test results Tap the AD tab to view attenuation distortion results tap the GDD tab to view group delay distortion results Attenuation dB 1600 Frequency Hz 2400 7 Tap the Cursor button to display a signal marker and information tag These show details for the test result data points See Cursor Button page 9 13 for more information 3 18 Performing TIMS Transmission Tests Phase and Amplitude Hits amp Interruptions Test Phase and Amplitude Hits amp Interruptions Test This test monitors signal phase and amplitude hits and dropouts The test conforms to ITU Recommendation ITU T 0 95 For more information about the Phase and Amplitude Hits amp Interruptions Test screen see page 9 14 The test can be run usi
12. Danger To avoid the possibility of severe injury or death observe the following precautions when using the Service Advisor Tablet Do not remove the system covers and do not perform electrical tests if there are signs of shipping damage to the outer enclosure When connecting test cables to a line do not touch the cable s metal contact points or allow the cable leads to touch each other Use only the supplied power cords and connect only to a properly grounded wall outlet Do not use extension cords that do not have a protective ground conductor Symbols The following are general definitions of safety symbols used on equipment and in manuals Dangerous voltage gt Protective ground Frame or chassis ground Alternating current Direct current p ooxsososoo Alternating or direct current e Caution Read the manual IN iii Declaration of Conformity according to ISO IEC Guide 22 and EN 45014 Manufacturer s Name Agilent Technologies Company Manufacturer s Address Service Test Division 2 Robbins Road Westford MA 01886 4113 Declares that the product Product Name xDSL TIMS Module Model Numbers N1626A Product Options This declaration covers all options of the above product Conforms to the following Product Specifications EMC EN 55011 1991 CISPR 11 1990 Group 1 Class A EN 50082 1 1992 IEC 801 2 1984 8 kV AD IEC 801 3 1984 3 V m IEC 801 4 1988 0
13. Tap the Select Test button 9 Under the Loop tab tap Complex Impedance and Return Loss The Complex Impedance and Return Loss Test window opens IN1626A TIMS Complex E and Return Loss Test 00 00 15 Bs File Measurement Signaling Auto Test Telset j 2 Receiver lt Pi gt PL xO RX Complex Impedance Return Loss a On Magnitude 900 Ohms gt gt 04 Horas Test Mode o o Phase Angle 600 Ohms Bridge 148 5 Deg 0 dB Qo Hold Filters TX RX hr O Inductive Series Capacitance z Capacitive 2 16 uF Pass Fail X Criteria Lord Mode Fina E i1 o o o Astart N16104 service Ad EID N1626A TIMS R83 1015 am 33 4 Set the tester s Transmitter Frequency to the desired test frequency between 100 Hz and 9900 Hz 5 2 Performing TIMS Loop Tests Complex Impedance and Return Loss Test Tap Start at the top of the screen and observe the Receiver window for test results The Magnitude value can range from 0 to 9999 Ohms gt gt gt in the Magnitude value field means that the result was too high to measure lt lt lt in the Magnitude value field means that the result was too low to measure The sign of the Phase Angle indicates the inductive or capacitive nature of the impedance Performing TIMS Loop Tests SRL ERL Test SRL ERL Test This test performs automated return loss measurements to determine singing return loss
14. The action codes often consist of several ASCII characters However each is counted as a single character 13 2 Signaling Screen Reference Dial Monitor Controls Dial Monitor Controls Go On Hook Now Stops the dial string transmission and changes to the on hook state Go Off Hook Now Changes the line to off hook state Mode Displays Emulate CI as the emulation mode for the test Line Selects the port to transmit the signal to Speaker Control The three Speaker Control buttons control the audio signal including signaling tones from the subscriber line to the Tablet s speaker The Mute button enables or disables the speaker The and buttons are volume controls Dial String Configuration Tools Dial Mode Selects DTMF or Dial Pulse signaling Dual Tone Multifrequency DTMF is used for Touchtone signaling from a telephone set or a PBX to an exchange After it is seized the exchange attaches a DTMF receiver to its end of the loop before returning a dial tone As each button on the DTMF dial pad is tapped the phone s talk circuit is disconnected and a tone pair is sent to the exchange Each tone pair comprises two separate signals each at one of seven defined audio frequencies The tone pairs are detected at the exchange and used to supply addressing information The tones are also coupled into the talk circuit to provide user feedback DTMF is also used in end to end signaling between subscribers Pause Inserts
15. 1 Open the File menu and tap Reports The TIMS Reports menu opens IN1626A TIMS Reports Create View jPrint Delete Information Default Names 2 Tap Header Information The Header Information menu opens Edit Report Header Information Select an entry to edit Pia aae Ya g cet i Cancel Operator Id NA Customer Name NA Circuit Id NA gt Comments NA Fa a s IS 5 T T aL Caps 3 Tap the Up or Down arrow button to highlight each field and enter the appropriate information using the keyboard display This information appears on the report file 14 7 Printing and Reports Entering Test Header Information Note The Operator ID and Customer Name are saved on the Service Advisor This makes the information available to other test modules The Circuit ID and Comments are saved on the test module because they are module specific 4 Tap OK to save the header information and return to the TIMS Reports screen 5 Onthe TIMS Reports screen opens tap Create to view the current report file You can save or print the displayed report or tap Close to return to the TIMS Reports screen To save the displayed report see Saving a Report page 14 9 6 To print the displayed report tap the Print button Then tap the Close button to return to the TIMS Reports screen 14 8 Printing and Reports Saving a Report Saving a Report You can s
16. 11 44 am Note This test requires 48 V supplied by the CO Receiver Indicators Current The current in mA on the line with a 430 Ohm load applied Resistance Displays the measured line resistance 11 9 Loop Test Screens Reference 11 10 12 Power Spectral Density PSD Screen 12 2 Swept FLA Screen 12 4 Advanced Test Screens Reference 12 1 Advanced Test Screens Reference Power Spectral Density PSD Screen Power Spectral Density PSD Screen This screen displays PSD and power spectrum information for the received signal IN1626A TIMS Power Spectral a Test lt PSD gt 00 00 00 ua EN File Measurement Signaling Auto Test Telset E 2 Receiver lt P2 gt Spectrum kHz N Kam ian ed rece PSD dBm Hz Filters g Pass Fail 0 2500 5000 7500 10000 RX Only Frequency Hz Criteria TX RX Mode r Speaker Control E None Peak Hold Disturber Mask i strt N1610A Service Ad 16264 Tims 2549 9 ex am A5 Receiver Controls and Indicators Band Opens a menu of settings for the frequency range of the PSD or power spectrum measurements PSD Frequency Ranges Band Frequency Range 10 kHz 31 Hz to 10 4 kHz 100 kHz 305 Hz to 104 kHz 2 MHz 11 kHz to 2 MHz 12 2 Advanced Test Screens Reference Power Spectral Density PSD Screen PSD Tab Shows the level
17. 11 44 am 33 4 Tap Start at the top of the screen and observe the Receiver display for test results 5 14 Power Spectral Density PSD and Power Spectrum Tests 6 2 Swept FLA Test 6 5 Performing TIMS Advanced Tests Performing TIMS Advanced Tests Power Spectral Density PSD and Power Spectrum Tests Power Spectral Density PSD and Power Spectrum Tests The TIMS tester provides two options for measuring signal spectrum e PSD measures wide band random noise levels across the selected frequency band Use it on signals with random data stream input such as E1 ISDN HDSL or ADSL e Power spectrum measures narrow band signals like tones and AM radio interference If the PSD measurement shows large spikes there are tones in the signal the power spectrum option can measure the level of these tones Power spectrum displays the power levels of the tones in a standard spectrum analyzer format For more information on the Power Spectral Density Test screen see page 12 2 PSD Test To run a PSD test 1 Connect the tester to the twisted pair line 2 Tapthe Select Test button The Select a Test window opens 9 Under the Advanced tab tap Power Spectral Density Performing TIMS Advanced Tests Power Spectral Density PSD and Power Spectrum Tests The power Spectral Density Test screen opens IN1626A TIMS Power Spectral Density Test lt PSD gt 00 00 00 P1 P2 x Orx nx Or Reverse Impedanc
18. 5 kV signal lines 1 kV AC power lines Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carries the CE marking accordingly The product was tested in a full configuration Denis E Viel September 14 1999 Quality Manager Westford MA USA European Contact Your local Agilent Technologies Sales and Service Office or Agilent Technologies GmbH Department ZO Standards Europe Herrenberger Strass 130 D 71034 Boeblingen Germany FAX 49 7031 14 3143 About this Book About this Book Getting Started Chapter 1 Getting Started introduces the ITU T version of the Service Advisor xDSL TIMS Module N1626A illustrating its connectors and controls The chapter also describes basic functions of the Service Advisor Tablet such as connecting power and starting and stopping the user interface Testing Chapters 2 through 7 provide instructions for performing tests with the TIMS Module TIMS Reference Chapters 8 through 13 contain reference information for the TIMS and Signaling module test functions The signaling test screens in Chapter 13 are available when you purchase the Signaling Option 010 Printing and Reports Chapter 14 Printing and Reports Describes how to print display screns and reports and how to save and delete reports Specifications Chapter 15 Specifications lists technical specifications of the Tab
19. Cross Talk NEXT FEXT Tests Cross Talk NEXT FEXT Tests Cross talk tests measure the amount of signal that leaks from one twisted pair to another twisted pair in the same binder group The TIMS tester provides two cross talk tests near end cross talk NEXT and far end cross talk FEXT Near End Cross Talk NEXT One TIMS tester is needed for NEXT tests P1 is connected to one twisted pair and P2 is connected to another The tester transmits a signal on one pair and receives it on the other NEXT Measurement TIMS RX TX mode TX Quiet bes Termination j NEXT 4 lt a gt Quiet RX Termination Transmit signal on one twisted pair Measure signal on another pair in binder group To perform a NEXT test 1 Connect the tester s RX port to a line you want to test and the TX port to another twisted pair in the same binder group see the preceding figure 2 Tap Select Test The Select a Test window opens 3 Under the Transmission tab tap Single Frequency Level and Attenuation The Single FLA Test screen opens 4 Use the TX RX setup controls on the left side of the screen to configure the tester Configure either the P1 or P2 connector for TX Configure the other connector for RX Use TX RX mode see Setting Up the Transmitter and Receiver TX RX Setup page 2 7 Performing TIMS Transmission Tests Cross Talk NEXT FEXT Tests 5 Use the Transmitter Frequency a
20. Impulse noise is a spike in the noise signal that is higher in level than background noise It can cause clicks and pops on voice lines and errors on ADSL lines Impulse noise measurements count the number of times spikes in the signal level exceed a predefined threshold level The TIMS tester can test for three types of impulse noise e Impulse Noise Voice Band See page 4 8 e Impulse Noise with Holding Tone See page 4 10 e Impulse Noise Wide Band See page 4 12 In impulse noise tests the TIMS records measurements at low middle and high impulse noise thresholds The low level threshold is set with the keypad and the middle and high level thresholds are automatically set to 4 dB and 8 dB above the low level threshold Performing TIMS Noise Tests Impulse Noise Test Voice Band Impulse Noise Test Voice Band This test measures impulse noise on ADSL lines that also carry POTS for example noise from ADSL modems The test conforms to ITU Recommendation ITU T 0 71 To measure impulse noise for POTS 1 Tap Select Test 2 Under the Noise tab tap Impulse Noise Voice Freq Band The Impulse Noise Test Voice Band screen opens IN1626A TIMS Impulse Noise Test ai Band 0 71 00 00 00 ua an o AME pem File Measuremeni Signaling Auto Test Telset E Help P1 K nx Reverse 5 oaen Operation treed once Test Mode 9 o 275 3250 Bridge Hold Filters eea Pass Fail RX Only B Crite
21. Key in a File Name button and enter a new name using the display keyboard Save Report File File Name sfla01 il Select an Existing File Name Cancel Name Size Modified test01 1KB 11Jul2000 17 25 E r 95ave To v N1626A TIMS PC Card You can use any combination of characters for the file name The system automatically adds a 1 at the end of the prefix name the first time you generate a report for example TEST01 TXT The number automatically increases each time you print a report This ensures that each report is saved with a unique filename and new reports do not overwrite existing reports Tap the N1626A TIMS button to save the file in the TIMS Test module or tap the PC Card button to save the file in the Flash Memory Card If the PC Card button is grayed out there is no flash memory card installed in your tester Tap the Save button to save the file or tap the Cancel button to return to the Report screen without saving the file 14 10 Printing and Reports Saving a Report If a file with the selected name already exists the window shown below opens Tap Yes to overwrite the existing file or No to enter another filename Return to step 5 or 6 to enter a new filename test01 already exists Do you wish to replace it a al Tap the Print or Close button when the Report screen opens Before tapping Print make sure you have a printer connected to the
22. Page 4 12 e Noise Balance Page 4 13 TIMS Filters and Applications TIMS Filter 3 dB Frequency Range Application Psophometric 700 Hz 3400 Hz Voice Channel 300 Hz 3400 Hz Modem 275 3250 Hz flat 275 Hz 3250 Hz Impulse noise 750 2300 Hz flat 750 2300 Hz Impulse noise E 1 kHz 50 kHz ISDN F 5 kHz 245 kHz HDSL G 20 kHz 1100 kHz ADSL 7 Conforms to ITU Recommendation ITU T 0 41 Conforms to ITU Recommendation ITU T 0 71 Performing TIMS Noise Tests Noise Test No ise Test Complete these steps to run a Noise test 1 Note Connect the tester to the line You can connect to the line at the customer premises or the exchange See Connecting to a Subscriber Line page 2 2 Tap the Select Test button Under the Noise tab tap the noise test you want to run Use the tester s TX and RX setup controls on the left side of the screen to select an input impedance See Setting Up the Transmitter and Receiver TX RX Setup page 2 7 Tap the Filters button and select an appropriate filter in the Select Filters window Set Pass and Fail limits for the test using the Pass Fail Criteria button and window Tap Start at the top of the screen and observe the Receiver display for test results Receiver lt P2 gt 21 5 dBrn 101 The Power Spectrum Density test can be run to help identify the sources of noise interference 4 3 Performing TIMS Noise T
23. TXIRX Termination For more information on the Capacitance and Loop Length Calculation Test screen see page 11 6 To run a Capacitance and Loop Length Calculation test 1 Verify that the twisted pair under test is open circuited at the far end 2 Connect the twisted pair being tested to the tester 9 Tap Select Test The Select a Test window opens 4 Under the Loop tab tap Capacitance and Loop Length Calculation Performing TIMS Loop Tests Capacitance and Loop Length Calculation Test The Capacitance and Loop Length Calculation Test window opens IN1626A TIMS Capacitance and 5 Length Calculation Test lt LLC gt 00 00 00 ae o E File IMeasurement Signaling Auto Test I Receiver P1 51 nF km Characteristic Capacitance Filters Mode Criteria Fe Control Fim jf strt _N16104 Service ad niezca ims 549 9 1102 am S Select either miles or kilometers as the unit for the distance measurement using the nF mi or nF km button Tap the Characteristic Capacitance button and enter the characteristic capacitance for the twisted pair using the keypad The characteristic capacitance can be obtained from the cable manufacturer Tap Start at the top of the screen and observe the Receiver window for test results Receiver lt P1 gt Capacitance 51 nF km a Characteristic Capacitance nF mi nF km gt g
24. Tapping the Cursor button displays a signal marker and tag containing information about the signal at each of the 23 data points in the test results Receiver lt P2 gt Cursor tag shows detailed information about the signal at this measurement point Attenuation dB E a jus 1766 Hz 0 8 dB 0 800 1600 2400 3200 Frequency Hz You can move the marker and tag to another data point Either e Usetheleft and right arrow buttons to move the marker to another data point Double clicking the left or right arrow button moves the marker to that end of the display Or e Touch a data point on the display 9 13 TIMS Transmission Test Screens Reference Phase and Amplitude Hits amp Interruptions Screen Phase and Amplitude Hits amp Interruptions Screen This screen controls a test that monitors signal phase hits amplitude hits and interruptions in the incoming holding tone The test conforms to ITU T 0 95 and 0 61 See Phase and Amplitude Hits amp Interruptions Test page 3 19 A phase hit is a sudden change in the phase of a received test tone often caused by automatic switching to standby facilities To qualify as a phase hit the change in phase must exceed the Phase Hit Threshold for more than 4 ms An amplitude hit is a sudden change in the level of a signal Following the hit the level may return to its original value or may stay an a new v
25. Vdc Accuracy 5 430 Ohm Test Loop Range 0 to 150ma Accuracy 5 15 8 Specifications TIMS Test Specifications TIMS Test and Measurement Characteristics continued Characteristic Specification Complex Impedance Magnitude up to 990 Ohms Angle 90 Accuracy Impedance 2 return loss 0 5dB Longitudinal Balance Range 0 to 100 dB Accuracy 1dB Frequency Range 50 Hz 700 Hz Load Coil Detection Method Sweep frequency Range Up to four load coils 15 9 Specifications TIMS Weighting Filters TIMS Weighting Filters The following table lists the frequency ranges of the TIMS weighting filters N1626A TIMS Weighting Filters Filter Type 3 dB Frequency Range Psophometric 700 Hz 3400 Hz Channel 300 Hz 3400 Hz 275 3250 Hz flat 275 Hz 3250 Hz 750 2300 Hz flat 750 2300 Hz E 1 kHz 50 kHz F 5 kHz 245 kHz G 20 kHz 1100 kHz 15 10 Specifications Ordering Information Ordering Information Contact your Agilent Technologies representative to purchase any of the following products or accessories TIMS Module Ordering Information Part Number N1610B Product Description Service Advisor Portable Test Tablet includes NiMH battery and internal battery charger Service Advisor Companion software Vac power adapter N1612A DB 9 to DB 9 serial null modem cable Option Description 500 Remote Services
26. and Attenuation Swept FLA test In this test a test signal is swept actually stepped across a user defined frequency band The user must specify the start and end frequencies of the test signal s frequency sweep see Swept FLA Screen page 12 4 8 23 TIMS Reference Calibration Calibration The Calibrate button on the Select a Test screen invokes the unit calibration function This function is used by Agilent Technologies personnel and is password protected 8 24 Single Frequency Level and Attenuation Single FLA Screen 9 2 Signal to Total Distortion S TD Test Screen 9 5 23 Tone Test Screen 9 6 Phase Jitter Screen 9 9 Attenuation amp Group Delay Distortion Screen 9 11 Phase and Amplitude Hits amp Interruptions Screen 9 14 TIMS Transmission Test Screens Reference 9 1 TIMS Transmission Test Screens Reference Single Frequency Level and Attenuation Single FLA Screen Single Frequency Level and Attenuation Single FLA Screen This screen controls the Single FLA test which generates a test signal and measures signal frequency level and attenuation at the receiving end of a line See Single Frequency Level and Attenuation Single FLA Test page 3 2 Attenuation 00 00 00 ra lt PaL zd File Measuremen Signaling Auto Test T lset Help Level T On eque eve Attenuation Rx x Hz Frequency Reve
27. band random noise levels across the selected frequency band on signals with random data stream input e The power spectrum option measures narrow band signals Swept FLA Test In the Swept FLA test two TIMS units are connected at opposite ends of a line for a stepped frequency sweep See Swept FLA Test page 6 5 for more information 2 16 Using the TIMS Module Running Auto Test Sequences Running Auto Test Sequences The Auto Test function lets you run a series of tests with one tap on the Start button Example auto test sequences are included you are encouraged to set up your own See Auto Test Sequences page 8 15 for more information To run one of the test sets in the menu 1 Tap Auto Test The Auto Test screen displays IN1626A TIMS Auto Test 00 00 00 iPOTS Active Loop xDSL Loop Qual xDSL Long DE ETE FS we 2 o 5 E File Measurement Signaling Auto Test Telset Start Help Test Data Value P F ffesttoop Kurt 0 Sample Sequenc NAT Auto Test POTS Active Loop Resistance CD start 16104 Service Ad BIRemote Networking 16268 Tms 8 49 9 12 50PM 2 Use the arrow buttons to highlight a test set in the menu at the left of the screen The middle of the Auto Test screen displays the tests that make up the set with fields for results and pass and fail indicators 9 Tap Start The tests run and the results display in the appropriate fields
28. cause a modem to retrain The counting of phase hit and gain hits is inhibited for 1 second following each dropout The interruption counter can record a maximum of 998 interruptions during the test 10 Noise Test Screen 10 2 Noise with Holding Tone Test Screen 10 4 Impulse Noise Test Voice Band Screen 10 5 Impulse Noise with Holding Tone Test Screen 10 6 Impulse Noise Test Wide Band Screen 10 8 Noise Balance Test Screen 10 9 TIMS Noise Test Screens Reference 10 1 TIMS Noise Test Screens Reference Noise Test Screen Noise Test Screen This screen controls a test that measures the amount of noise on a line including background noise and tones as weighted by the selected filter IN1626A TIMS Noise Test 00 00 18 gs File Measuremen Signaling Pl a Qr Reverse Impedance 600 Bridge Hod TX Setup RX Setup RX Only TX RX Mode r Speaker Control o Auto Test Receiver P2 Telset Note conducted in RX only mode 10 2 Astart N1610A Service Ad J N1626A TIMS 55499f 8 23 am S The Transmitter Frequency and Level controls are not available since the Noise test is Receiver Controls and Indicators TIMS Noise Test Screens Reference Noise Test Screen Filters Used to select the appropriate filter for the class of service being carried on the twisted pair Supported Frequency Ra
29. control screen for measuring frequency level and attenuation see Single Frequency Level and Attenuation Single FLA Screen page 9 2 Signal to Total Distortion with Holding Tone Generates a holding tone and opens a display that compares the RX signal power to total signal distortion from all sources see Signal to Total Distortion S TD Test Screen page 9 5 23 Tone Test Level EDD S TD IMD S N Calls a control screen that initiates a 23 Tone Test and displays the test results see 23 Tone Test Screen page 9 6 Phase Jitter Calls a control screen used to monitor an incoming test signal s power level and the magnitude of the signal phase and amplitude distortion see Phase Jitter Screen page 9 9 Attenuation amp Group Delay Distortion Calls a screen that tests see Attenuation amp Group Delay Distortion Screen page 9 11 8 20 TIMS Reference Select a Test Menu Phase Hits Amplitude Hits and Interruptions Calls a control screen used to monitor an incoming signal s power level and the number of phase hits amplitude hits and signal interruptions see Attenuation amp Group Delay Distortion Screen page 9 11 Noise Tab Select a Test Transmission i Loop Advanced Impulse Noise Noise Voice Freq Noise Balance Band Impulse Noise Noise with with Holding Tone Holding Tone Voice Freq Band Impulse Noise Wide Band Cancel Calibrate Noise Calls a control screen for running a me
30. is measured See page 3 14 for more information Attenuation and Group Delay Distortion This test measures flatness in the reception attenuation and delay of 23 tones in a test signal See page 3 17 for more information Phase and Amplitude Hits amp Interruptions Test This test monitors phase hits gain hits and interruptions See page 3 19 for more information Using the TIMS Module TIMS Tests and Measurements Noise Tests Noise Test Noise measurements determine the level of background noise and interference on the line See page 4 2 for more information Noise with Holding Tone This test transmits a holding tone over the line to turn on any voice activated devices in the circuit At the measurement end a notch filter removes the tone so only the noise and distortion are measured See page 4 5 for more information Impulse Noise Voice Band This test measures impulse noise on voice band lines See page 4 8 for more information Impulse Noise with Holding Tone This test measures impulse noise on a line when a holding tone is present See page 4 10 for more information Impulse Noise Wide Band This test measures impulse noise on lines carrying wide band services like ISDN HDSL and ADSL See page 4 12 for more information Noise Balance Test This test measures the metallic noise level power influence and noise balance in a twisted pair line See page 4 13 for more information 2 15 Using the TIMS Module TI
31. limits View Test Sequence The View button opens the View Sequence window which lists the operations performed when the auto test sequence runs View Sequence BENS PITH FREQ LIM LOUW 50 INIT SEL TEST STD SOUR LEV 22 000000 SOUR LEV 22 000000 SENS FILT DFILTER INIT 8 16 TIMS Reference Auto Test Sequences Edit Test Sequence The Edit button opens the Edit Sequence window for modifying test sequences Edit Sequence Nests SS c Single Frequency Level amp Attenuation Signal to Total Distortion Di Insert Test Insert Test Beta After Delete Test Edit Test Close Arrow buttons Control which test in the sequence is selected and highlighted Insert Test Before Opens the Select a Test window Tapping a test in the window opens the control screen for that test so you can configure it and changes the Telset and Start buttons at the top of the screen The Telset button changes to a green Message button Tapping it opens the Supply Message Text window and a keyboard for creating a message that displays before the test sequence runs Use the message function to create a confirmation or other message box The Start button changes to a green End Sequence button Tapping it opens a confirmation message box that asks if you want to save the sequence Yes adds the new test to the auto test sequence before the highlighted test Cancel closes the message box and retu
32. line Using the TIMS Module Setting Up a TIMS Test Setting Up a TIMS Test This section describes how to set up the TIMS tester for running any of the tests For detailed information on the test screens and controls refer to Chapter 8 TIMS Reference Selecting a Test When the Individual Test option is selected from the Service Advisor Utilities Manager screen the TIMS tester defaults to the Single Frequency Level and Attenuation test The Select Test button on the right side of the display opens the Select a Test menu The test options are arranged under four tabs as shown below The currently selected test and any unavailable tests are grayed out Select a Test Transmission D Advanced a deo ud Phase Hits wel ED Amplitude Hits sire IMD SAD and interruptions Single la enuation Signal to Total Distortion with Phase Jitter Holding Tone Attenuation and Group Delay li Distortion Calibrate Setting Pass and Fail Limits Most TIMS tests have a default range of pass fail values defined for each test measurement For example in most tests the default range for received signal level is 60 dBm to 13 dBm You can use the Pass Fail Criteria window to change the limits of acceptable results for a test Using the TIMS Module Setting Up a TIMS Test To change the high and low limits for a test l Tap Pass Fail Criteria on the right side of the screen The Pass Fail Criteria win
33. mode indicates that the selected Reverse line impedance value is not the actual impedance setting but is M o below Bridge told TX Setup TXIRX TX RX Mode H H RX Setup Impedance used only for computing measurements See Bridge Termination Reverse Tap this button to reverse the transmit TX and receive RX functions of the TIMS module s P1 and P2 ports Speaker Control TX Setup and RX Setup Tapping the TX Setup or RX Setup Sas button opens one of the menus shown below The buttons in the 15 menu select the termination mode and line impedance Transmitter TX Port Setup Receiver RX Port Setup cC 100 Ohms c 420 Ohms c 135 Ohms Bridge termination This mode sets the receiver to a high impedance state 40 kOhms for nonintrusive testing on a live line The selected RX impedance is used for computing measurement results When Bridge mode is selected the impedance indicator turns yellow Hold termination This mode holds the line for testing see Dial and Hold Functions Using a Butt Set page 2 12 Using the TIMS Module Setting Up a TIMS Test TX RX Mode Opens the Select a TX RX Mode menu The menu choices are Transmit Receive Receive only and Transmit only Be sure to set the correct interface impedance for the application you are testing For example use Bridge mode and a 100 Ohm impeda
34. of tones in the received 23 tone signal It compares the measured values to reference values for the phase differences see Table 18 in IEEE Standard 743 1995 The resulting differences in values represent the delay Complete these steps to display the line s EDD 1 Tap Select Test The Select a Test window opens 2 Under the Transmission tab tap 23 Tone Test 3 Tap Start at the top of the screen to begin the measurement 4 On the RX tester tap the EDD tab to view a graph of the line s envelope delay to frequency Receiver lt P2 gt Summary Tones EDD 10000 7500 5000 2500 1844 Hz t e 0 0 1000 2000 3000 4000 Frequency Hz Delay micro seconds 5 Tap the Cursor button to display a signal marker and information tag These show details for the test result data points Use the arrow buttons or touch a data point to move the marker 3 12 Performing TIMS Transmission Tests 23 Tone Test Intermodulation Distortion IMD Measurement The 23 tone test measures intermodulation distortion IMD which is caused when a signal with multiple tones passes through a non linear gain device and generates sum and difference tones that are not in the original signal You can assess non linearities in the transmission path by measuring 2nd order and 3rd order IMD products 23 Tone Summary test results display the ratios of the received 23 tone signal
35. of wide band random noise y axis as a function of frequency x axis eE 35 0 PSD dBm Hz 0 0 2500 5000 7500 10000 Frequency Hz Power Spectrum Tab Shows the level of narrow band signals like tones and AM radio interference The graph shows signal level y axis as a function of frequency x axis Receiver lt P2 gt ro es I Band 2500 5000 7500 10000 Frequency Hz You can use the Cursor button to display detailed information about individual data points in the test results 12 3 Advanced Test Screens Reference Swept FLA Screen Swept FLA Screen When the TIMS tester is used in transmit mode you can use this control screen to define the start and stop frequencies of the tester s stepped frequency sweep You can adjust the test signal level in a range from 40 to 13 dBm At the receiving end of the line a TIMS tester is placed in receive mode and is programmed with the same start and stop frequency range used in the transmitter An attenuation reference level usually the transmit signal level should also be entered Both testers are then started and the transmitter begins its stepped frequency sweep At the other end of the line TIMS tester in receive mode monitors the incoming test signals and plots the signal levels versus frequency on the tester
36. on any voice activated devices in the line At the receiving end of the line tap the Select Test button The Select a Test window opens Under the Noise tab tap Impulse Noise with Holding Tone Voice Freq Band The Impulse Noise with Holding Tone Test screen opens IN1626A TIMS Noise with 5 Tone Test 00 00 11 a8 o File Measurement Signaling Auto Test Telset Stet j Receiver P2 Help Test Mode Psopho 820 Notch Filters TXIRX TX RX Mode m S A Senne eer Ev e 2fo 7 1 3 o stat Ni610A Service aa wu ms Rossa Tap the Filters button and select the 275 3250 Hz or 750 2300 Hz filter and 820 Hz or 1020 Hz notch filter 60 Use the notch filter that matches the holding tone it removes the tone at the receiver so only impulse noise is measured Note 6 Performing TIMS Noise Tests Impulse Noise with Holding Tone Test Tap the Set Low Threshold button to open the keypad and set the low level threshold The middle and high level thresholds are automatically set to 4 and 8 dBm above the low level threshold The holding tone must be above 40 dBm to get an accurate noise measurement If you want the test to run for a specific length of time see Setting Test Duration page 2 10 Tap Start at the top of the screen to start the test and observe the Receiver window for test results Performing T
37. release then tapping Disconnect 2 13 Using the TIMS Module TIMS Tests and Measurements TIMS Tests and Measurements Below are descriptions of the various tests and measurements you can perform with the TIMS module To run one of the tests see the page referred to in the description The default TX tone frequency is 1020 Hz Loopback configurations are not generally used The TIMS tester can be configured for receive only and the received tone can be 990 Hz to 1030 Hz Transmission Tests Single Frequency Level and Attenuation Single FLA Test This test checks signal strength and line attenuation See page 3 2 for more information Cross Talk NEXT FEXT Tests Cross talk tests measure the amount of signal that leaks from one twisted pair to another twisted pair in the same binder group The TIMS tester provides two cross talk tests near end cross talk NEXT and far end cross talk FEXT See page 3 5 for more information Signal to Total Distortion S TD Test The S TD test measures the quality of a voice service line and can be used to minimize the error rate on data lines See page 3 7 for more information 23 Tone Test The 23 Tone test measures attenuation distortion and envelope delay distortion EDD for the voice band See page 3 9 for more information Phase Jitter Test In this test the TIMS module transmits a 1020 Hz tone at 13d Bm The signal is looped back to the module s P2 port and the phase jitter
38. screen on the RX tester to initiate test signal analysis Note The transmitting tester must be started before the receiving tester for the test to execute properly 4 Observe the Receiver window of the receiving tester for test results E NONE 4 E gt Attn Ref Level Cursor 5 5 a A s M ZR aos E 5m 765 790 815 840 865 890 Frequency Hz Level dBm E in The Cursor button toggles a marker on the receiver display on and off The marker identifies a unique sample point in the receiver s signal plot with the frequency and power level of the sample point displayed below the marker You can advance the marker through successive sample points using the cursor s arrow keys or move it directly to a selected sample point in the plot by tapping the point 6 7 Performing TIMS Advanced Tests Entering and Sending a Dial String 7 2 Storing a Dial String 7 4 Recalling and Sending a Stored Dial String 7 5 Using Signaling with the Tims Module Using Signaling with the Tims Module Entering and Sending a Dial String Entering and Sending a Dial String The TIMS Module s dial functions let you enter a series of action codes and numbers using the Dial Monitor Test screen s keypad The assembled action codes and numbers can be output as a DTMF dial string over the subscriber line Dial strings can be from 1 to 128 characters in length includ
39. selected test The Start button displays Test Stopped in red in its center Tapping Start changes the button to a Stop button that displays Test Running in green in its center Tapping Stop halts the test Help Displays the version of the TIMS software TIMS Reference Test Setup Controls Test Setup Controls The test setup control buttons on the right side of the screen are used to select tests and special test configuration options Operation Test Mode Psopho Filters Pass Fail Criteria Select Test Opens a menu containing major test functions see Select a Test Menu page 8 20 Test Mode Provides access to specialized functions like loopback and quiet termination see Test Modes page 8 8 Filters Opens a window with filter selections for the current test see Filters page 8 10 Pass Fail Criteria opens a window with controls for changing the pass and fail parameters for measurement See Setting Pass and Fail Limits page 2 3 and Changing the Default Pass and Fail Limits page 2 6 8 5 TIMS Reference TX RX Setup Controls and Indicators TX RX Setup Controls and Indicators P1 P2 TO Orx rx Qx Reverse Impedance 600 600 TX Setup RX Setup TXIRX TXIRX Mode The TX RX setup controls on the left side of the screen configure the TIMS line connector ports P1 and P2 TX and RX Indicators Two columns of indicators show the status of the TIMS te
40. to the 2nd and 3rd order IMD products The tester calculates 2nd and 3rd order results based on IEEE Standard 743 1995 Section 8 6 5 Complete these steps to measure the line s IMD 1 Run the 23 Tone Test described on page 3 9 2 Tap the Summary tab The 2nd and 3rd IMD measurements are the two right hand columns in the Summary screen 13 1 4odB 41dB 484aB 50dB 45 45 60 0 60 10 10 10 10 Summary Tones EDD Performing TIMS Transmission Tests Phase Jitter Test Phase Jitter Test In this test the TIMS Module transmits a 1020 Hz tone at 13 dBm The signal is looped back to the TIMS P2 port and the phase jitter is measured The test conforms to ITU Recommendation ITU T 0 91 For more information about the Phase Jitter test screen see page 9 9 The test can be run using one tester transmitting on P1 and receiving on P2 or with two testers one transmitting to the other When using a loopback test configuration use a known good line for the loopback to avoid misleading results Amplitude Jitter Phase Jitter Test Configuration TIMS TMs TX mode RX mode gt gt ie TX RX TIMS TX RX mode ry RX Far end gt lt d g Loopback or dL pa TIMS in RX TX loopback mode To perform a phase jitter test complete these steps 1 Connect the TIMS tester or testers to the line under test See the fi
41. 01 Warranty Calibration and Service ac Alternating current ADSL Asymmetric Digital Subscriber Line AMI Alternate Mark Inversion A line coding scheme ANSI American National Standards Institute ATU C ADSL termination unit central office The ADSL modem at the central office end of the ADSL line ATU R ADSL termination unit remote The ADSL modem at the remote end of the ADSL line asynchronous Notsynchronized not timed to an outside clock source attenuation Signal loss bandwidth A network s or channel s capacity to carry traffic bit A basic unit of data A bit can be set to either a zero or a one bit rate FTP The speed at which bits are transferred over the network bridged tap Unconnected cables on a reconditioned line a common cause of problems with digital services BW See bandwidth byte Eight bits Usually refers to a particular location in a frame Glossary CCITT Consultative Committee on International Telegraph and Telephone now the International Telecommunications Union ITU The standards produced by this organization are called ITU T Recommendations clock The timing of or timing source for digital telecom equipment CO Central Office CPE Customer premises equipment dB Decibel Standard unit for transmission loss gain and relative power ratios dBdsx Decibels relative to the DSX level dBm Decibels relative to one milliwatt dB
42. 11 Performing TIMS Transmission Tests Phase Jitter Test 8 On the RX tester tap Start at the top of the screen and observe the Receiver display for test results 23 4 dBm 0 0 Deg 2 4 96 13 25 25 Performing TIMS Transmission Tests Attenuation and Group Delay Distortion Test Attenuation and Group Delay Distortion Test This test can be run with one TIMS tester in loopback mode but using two TIMS is preferred When using two TIMS testers one transmits a test signal and the other TIMS receives and analyzes it When using one TIMS tester the tester transmits the test signal into one line receives it from another then analyzes the received signal Refer to page 9 11 for more information on the Attenuation and Group Delay Distortion Test screen To aid in qualifying the line tolerance masks can be applied to the analyzed signal See Masks Button page 9 12 To run an Attenuation and Group Delay Distortion test 1 Connect the TIMS tester or testers to the line under test 2 Tap Select Test on both testers 3 Under the Transmission tab tap Attenuation and Group Delay Distortion on both testers The Attenuation and Group Delay Distortion test screen opens IN1626A TIMS Attenuation amp 3 Delay Distortion O 00 00 00 ae o Rcx File IMeasuremen Signaling Auto Test Telset Start Receiver lt P2 gt Filters g Pass Fail Criteria
43. 11 8 Test Loop 430 Ohm Screen 11 9 Advanced Test Screens Reference 12 1 Power Spectral Density PSD Screen 12 2 Swept FLA Screen 12 4 Signaling Screen Reference 13 1 Dial Monitor Test Screen 13 2 Dial Monitor Controls 13 3 ix Contents 14 15 Printing and Reports 14 1 Connecting Printers 14 2 Printing a Screen 14 4 Printing a Report 14 5 Entering Test Header Information 14 7 Saving a Report 14 9 Viewing and Printing Saved Reports 14 12 Changing Default File Names 14 14 Deleting Saved Files 14 15 Specifications 15 1 N1626A TIMS Module Specifications 15 2 TIMS Test Specifications 15 6 TIMS Weighting Filters 15 10 Ordering Information 15 11 Warranty Calibration and Service Glossary Index The N1626A xDSL TIMS Module at a Glance 1 2 Using the Agilent Service Advisor Tablet 1 4 The TIMS User Interface 1 6 The TIMS Screen at a Glance 1 9 Changing Fuses on the TIMS Module 1 10 Upgrading and Reloading the TIMS Software 1 11 Getting Started 1 1 Getting Started The N1626A xDSL TIMS Module at a Glance The N1626A xDSL TIMS Module at a Glance The xDSL TIMS module plugs into the Service Advisor tablet to provide Transmission Impairment Measurement Set TIMS testing and power spectrum measurements The figure below identifies connectors and indicators on the TIMS module Craft test set amp handset connectors TIMS circuit connectors Ground Lug DIAL Errors H
44. 26A TIMS Longitudinal Balance Test ir ap E Bs o Stop RI File Measurement Signaling Auto Test Telset Start Receiver P1 P1 P2 n Qu Balance Ege dB Reverse 65 Impedance o 9 Q Bridge Hold Filters Pass Fail Criteria TX RX Setup E Mode Ea tter lt P 1 gt TET Level dam Prae E Annis Level dBm E I 4 fofofo m 0 0 R83 10 49 am S mezan TIMS Astat 16104 Service aa N1610A Service Ad Service Ad Set the tester s Transmitter Frequency to the desired frequency 50 Hz to 5 200 kHz 6 Set the transmitter level to the desired signal level from 10 to 10 dBm 7 Tap Start at the top of the screen and observe the longitudinal balance measurement in the Balance display Balance 51 9 dB 65 5 7 Performing TIMS Loop Tests Capacitance and Loop Length Calculation Test Capacitance and Loop Length Calculation Test The Loop Length Calculation test measures the capacitance of a twisted pair It then uses the characteristic capacitance value of the twisted pair wire to calculate the length of the tested loop This test can be used to determine the distance to an open by measuring the capacitance between tip and ring then converting the measured capacitance value into a distance Capacitance amp Loop length Measurement r TIMS TX RX mode Open Circuit
45. A Note The counting rate of the impulse noise counters is limited to seven counts per second Receiver Controls and Indicators The Receiver indicators show impulse noise counts and visual displays of the number of impulse noise spikes detected at each threshold level Low The number of times the noise level exceeded the low level impulse noise threshold See Set Low Threshold page 10 5 Middle The number of times the noise level exceeded the middle level impulse noise threshold which is 4 dB above the low level threshold High The number of times the noise level exceeded the high level impulse noise threshold which is 8 dB above the low level threshold Set Low Threshold Opens a keypad to set the low level impulse noise threshold between 30 and 95 dBrn The default value is 77 dBrn The middle and high level thresholds are automatically set 4 dB and 8 dB above the low level threshold 10 5 TIMS Noise Test Screens Reference Impulse Noise with Holding Tone Test Screen Impulse Noise with Holding Tone Test Screen This screen controls a test that measures impulse noise using voice frequency weighting filters 275 3250 Hz 750 2300 Hz The impulse noise counters register the number of times a peak in the signal level exceeds defined thresholds A holding tone switches on voice activated devices on the line A notch filter in the receiver removes the holding tone so only impulse noise is measured Note The counting r
46. Advisor and requires a restart Unsaved data will be lost Connecting a Printer to a Service Advisor Tablet N1610B To connect a printer to the Service Advisor Tablet follow these steps 1 On top ofthe Service Advisor open the door that protects the serial and parallel ports Service Advisor Top View E JE oo eae OCP o Parallel port 2 Install a DB 25 cable between the parallel port on the Service Advisor and your printer 14 2 Printing and Reports Connecting Printers Connecting a Printer to an Agilent Advisor J2300C D To connect a printer to an Agilent Service Advisor follow these steps 1 Locate the parallel port on the side of the Service Advisor Parallel port 2 Install a DB 25 cable between the parallel port on the Service Advisor and your printer 14 3 Printing and Reports Printing a Screen Printing a Screen You can always print the current screen when your Tablet is connected to a HP Deskjet printer The printer must be directly connected to the parallel port on your Service Advisor see Connecting a Printer to a Service Advisor Tablet N1610B page 14 2 or Connecting a Printer to an Agilent Advisor J2300C D page 14 3 The screen prints exactly as it appears on the tester s display To print a screen tap Print Screen in the File menu The screen prints on your printer Caution Make sure you have a printer connected to th
47. Agilent Technologies N1626A Service Advisor xDSL TIMS Test Module ITU T User s Manual ES Agilent Technologies Agilent Technologies N1626A Service Advisor xDSL TIMS Test Module ITU T User s Manual 7 Agilent Technologies Copyright 2001 Agilent Technologies Inc All rights reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Publication part number N1626 90000 Version 4 0 May 2001 Printed in USA Agilent Technologies Service Test Division 2 Robbins Road Warranty The information contained in this document is subject to change without notice Agilent Technologies makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damage in connection with the furnishing performance or use of this material Warning Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Westford Massachusetts 01886 USA Trademark Credits Windows and MS DOS are U S registered trademarks of Microsoft Corporation Touchtone is a trademark of AT amp T All other trademarks are the property of
48. Connect your butt set to the A and B binding posts on the TIMS module Connect the tester to the twisted pair line In the Select a Test window tap the desired test e N Tap Telset The Select Dial Port window opens Select Dial Port Dial Port c c Port 4 TX Port 2 RX Disconnect Close 5 Tap the dial port your butt set craft test set or a portable telephone will connect to Note The current state of the port is shown on the port selection button as either TX or RX Using the TIMS Module Dial and Hold Functions Using a Butt Set Tap Connect The window shown below opens Butt set dial on port 1 enabled Use the butt set to place a call or resume a previous call The Measure button will disengage the butt set and 255 hold the line while the Disconnect button will disengage the butt set and drop the line Disconnect Use the butt set to place a call or dial the exchange for services If you plan to hold the line for testing continue with step 8 otherwise tap the Disconnect button to release the line Tap Measure to hold the line for testing then tap Start to run the selected test When you ve finished testing release the line by either Using the TX RX setup controls on the left of the screen to uncheck Hold for the port The Hold function was invoked automatically by the Telset option Or e Tapping Telset again and selecting the port you want to
49. G ground lug 1 3 H handset connector 1 3 HDSL 5 12 Gloss 2 impedance setting 2 8 header for report 14 7 hold functions 8 7 Hz Gloss 2 I impedance setting 2 8 selecting 8 7 IMPHT Gloss 2 IMPN Gloss 2 IMPNWB Gloss 2 impulse noise voice band screen 10 5 test 4 8 impulse noise wide band screen 10 8 test 4 12 impulse noise with holding tone screen 10 6 test 4 10 indicators error 1 3 error history 1 3 signal status 7 3 7 5 tablet ready 1 3 telset indicator 1 3 TX RX configuration 1 3 installing modules 1 4 intermodulation distortion IMD displays 9 7 test 3 13 ISDN Gloss 2 impedance setting 2 8 ITU Gloss 3 J jitter Gloss 3 K kHz Gloss 3 L LCD Gloss 3 LED Gloss 3 level attenuation reference 9 3 12 5 measurements 3 2 RXsignal 9 4 TX signal 8 14 limits pass fail 2 3 restoring factory defaults 2 6 line connectors 1 3 lines connecting to the TIMS 2 2 load coil Gloss 3 Index load coil detection screen 11 8 test 5 12 longitudinal balance screen 11 5 test 5 6 loopback mode 8 8 loop current 11 9 loop length measurement 5 8 M masks 9 12 measurements attenuation 9 4 attenuation distortion 3 9 3 11 cross talk NEXT FEXT 3 5 3 6 dc voltage 5 10 11 7 EDD 3 12 frequency 3 2 9 4 IMD 3 13 9 7 impulse noise 4 7 4 12 10 6 to level 3 2 9 4 load coil 5 12 11 8 noise 4 2 to 4 6 10 3 PSD and power spectrum 12 2 signal to noise 9 7 sig
50. I Graphical user interface HDSL High bit rate Digital Subscriber Line hexadecimal A base 16 numbering system in which the digits range from 0 through F A subscript h is used to denote a hexadecimal value for example 2A0F hop A router in the path that data travels to reach a destination remote node Hz Hertz Measure of frequency one cycle per second IMD Intermodulation Distortion IMPN Impulse Noise IMPHT Impulse Noise with Holding Tone IMPNWB Impulse Noise Wide Band ISDN Integrated Services Digital Nework ISO International Standards Organization ITU International Telecommunications Union formerly the Consultative Committee on International Telegraph and Telephone CCITT The standards produced by this organization are called ITU T Recommendations jitter Short term variation in the phase of a digital signal includes phase variation above 10 Hz Kb or Kbit Kilobit A thousand bits KB or Kbyte Kilobyte One thousand bytes Kbps Kilobits per second kHz Kilohertz Measure of frequency one thousand cycles per second LAN Local area network LCD Load Coil Detection or liquid crystal display LED Light emitting diode load coil A device used to improve the quality of voice transmission causes problems with digital services loopback Astate in which the transmit signal is reversed back as the receive signal typically by a far end network elem
51. IMS Noise Tests Impulse Noise Test Wide Band This test measures impulse noise on lines carrying wide band services like ISDN HDSL and ADSL For more information on the Impulse Noise Wide Band Test screen see page 10 8 To measure impulse noise on a wide band line 1 At the receiving end of the line tap the Select Test button 2 Under the Noise tab tap Impulse Noise Wide Band The Impulse Noise Test Wide Band screen opens IN1626A TIMS Impulse Noise Test TZ Band 00 00 18 Gee t Eg amp RI ed File Measuremen Signaling Auto Test Telset Start m Pi Receiver lt P2 gt xO m Middle rx n 9 dBm impedence ER 9 o Bridge Q Hod wxony TX RX Mode Speaker Control PBstart wisioa service ad wiszea ims 3 Tap the Filters button and select the E F or G filter Pass Fail Criteria 60 Set Low Threshold 4 Tap the Set Low Threshold button to open the keypad and specify the low level threshold The middle and high level thresholds are automatically set to 4 and 8 dBm above the low level threshold Note The holding tone must be above 40 dBm to get an accurate noise measurement 5 Ifyou want the test to run for a specific length of time see Setting Test Duration page 2 10 6 Tap Start at the top of the screen to start the test and observe the Receiver window for te
52. L and echo return loss ERL in a line see SRL ERL Screen page 11 4 Longitudinal Balance Calls a control screen used for measuring the longitudinal balance of a line Longitudinal balance is a ratio of the longitudinal voltage measured to ground to the metallic voltage expressed in dB see Longitudinal Balance Screen page 11 5 Capacitance and Loop Length Calculation Calls a control screen used to measure the capacitance of a twisted pair line The test software then uses the characteristic capacitance value of the twisted pair wire to calculate the length of the tested loop see Capacitance and Loop Length Calculation Screen page 11 6 Digital Multimeter This button lets you make dc voltage measurements see Digital Multimeter Screen page 11 7 Load Coil Detection Calls a screen for testing for load coils on the line see Load Coil Detection Screen page 11 8 Test Loop 430 Ohm Calls a control screen for measuring loop current see Test Loop 430 Ohm Screen page 11 9 8 22 TIMS Reference Select a Test Menu Advanced Tab Transmission Noise Loop Advanced Power Spectral TRER bape Density Attenuation Power Spectral Density Calls a control screen for viewing power spectral density PSD and power spectrum measurements see Power Spectral Density PSD Screen page 12 2 Swept Frequency Level and Attenuation Calls up a control screen used to perform a Swept Frequency Level
53. MS Tests and Measurements Loop Tests Complex Impedance Return Loss Test This test generates a test signal then measures the magnitude and phase angle of the line impedance See page 5 2 for more information SRL ERL Test This test performs automated return loss measurements to determine singing return loss SRL and echo return loss ERL in the tested line See page 5 4 for more information Longitudinal Balance Test This test uses a signal to find the longitudinal balance of a twisted pair line See page 5 6 for more information Capacitance and Loop Length Calculation This test can be used to determine the distance to an open See page 5 8 for more information Digital Multimeter Test This test measures dc voltage on the line See page 5 10 for more information Load Coil Detection Load coils must be removed before DSL service can be deployed The TIMS tester can detect up to four load coils from a single access point at either end of the line See page 5 12 for more information Test Loop 430 Ohm Measurement This test measures the current flow in the local loop with a 430 Ohm load applied to simulate a telephone off hook condition See page 5 14 for more information Advanced Tests Power Spectral Density PSD and Power Spectrum Test The TIMS tester provides two options for measuring signal spectrum power spectral density PSD and power spectrum See page 6 2 for more information e The PSD option measures wide
54. NR 71 Level dBm 40 5 765 790 815 840 865 890 Frequency Hz 12 6 Dial Monitor Test Screen 13 2 Dial Monitor Controls 13 3 Signaling Screen Reference 13 13 1 Signaling Screen Reference Dial Monitor Test Screen Dial Monitor Test Screen The Signaling button opens the Dial Monitor Test screen This screen configures a dial string for output over a subscriber line Tapping the Start button transmits the dial string on the selected port IN1626A TIMS Dial Monitor Test p m d 2 File IMeasurement Signaling Auto Test Start Help Signaling Status cad co o Off Hook on Hook M 4 gt M insert Delete Clear All coon coo vie Hook Now Hook Now Mode Insert 2 3 Emulate CI Ee Digits Dial 1 abc def A Mode Line Configure poti x Ee IE 5 6 B zz Trunk Type Action ghi jk mno Loop Start ies Sand Battery Load ot 7 8 9 c pe E Sequence pqrs tuv wxyz Speaker Control Send ET em Ted start _N16104 Service ad 15254 Tms 5 49 9 7 56 aM A Before entering a dial string you must select an output port When this is done enter the individual codes that make up a dial string in the entry field of the screen A dial string can be from 1 to 32 characters in length including action codes
55. Q bridge iz aa told Filters TX Setup RX Setup TX Level n Attenuati Pass Fail TXIRX Reference Level 73 Criteria TX RX Mode Speaker Contr imate e 2 o JE E E 0 fice aa 16264 TIMS 9 9 12 34 Pm 3 Transmitter setup controls 1 9 Getting Started Changing Fuses on the TIMS Module Two fuses protect the TIMS module from excessive line voltage To change a fuse Warning Before performing this procedure turn off the Service Advisor and disconnect its power source 1 Slide the TIMS module out of the tablet and find the fuse holders on the bottom of the module faceplate 2 Use a small screwdriver to unscrew the fuse holder until it pops out 3 Gently pull out the fuse and examine it The filament should be intact If the filament is broken the fuse is bad 4 Ifthe fuse is bad replace it only with a similar rated fuse 250 V 750 mA If the fuse is good reinsert the fuse in the holder 5 Insert the fuse holder in the TIMS module and use a screwdriver to push in and tighten the fuse holder 1 10 Getting Started Upgrading and Reloading the TIMS Software Upgrading and Reloading the TIMS Software The N1626A TIMS module s operating software is loaded using a PC witha CD ROM drive To reload or upgrade the TIMS software 1 Connect the Service Advisor tablet to a PC that has a CD ROM drive using a null modem 9 pin serial cable Close all applications on the table
56. SRL and echo return loss ERL in the tested line SRL ERL Measurement TIMS TX RX mode a co TXIRX Termination For more information on the SRL and ERL Test screen see page 11 4 To run an SRL ERL test 1 Connect the twisted pair being tested to the tester Quiet termination is required at the other end 2 Tap the Select Test button The Select a Test window opens 3 Under the Loop tab tap SRL amp ERL The SRL and ERL Test window opens HESS TIMS SRL and ERL Test a8 T File Measurement Signaling E Test Telset Receiver lt P1 gt P1 KO Or xO n 600 Ohms Reverse Impedance lt lt lt lt lt lt o sridoe D Q Hold TX RX Setup Mode Ni6i08 Service ad wien ws R83 10 26 am Performing TIMS Loop Tests SRLIERL Test Select the receiver reference impedance The impedance is either 600 Ohms with a series 2 16 pF capacitor or 900 Ohms with a series 2 16 pF capacitor Use the Pass Fail Criteria button and window to set pass and fail limits for the test Tap Start at the top of the screen and observe the values in the SRL Low SRL High and ERL displays gt gt gt in an SRL or ERL display means that the result was too high to measure lt lt lt in an SRL or ERL display means that the result was too low to measure Performing TIMS Loop Tests Longitudinal Balance Test
57. TIMS r TIMS TX mode RX mode gt gt gt TX RX TIMS TX RX mode ry RX Farand m gt K Loopback or lt gt lt TIMS in RX TX loopback mode To perform a 23 Tone test complete these steps 1 Connect the TIMS testers to the line See the figure above 2 On each tester tap Select Test Performing TIMS Transmission Tests 23 Tone Test 3 3 10 On each tester under the Transmission tab tap 23 Tone Test The 23 Tone Test screen opens IN1626A TIMS 23 Tone Test 00 00 00 uud SIS c Rm File Measuremen Signaling Auto Test Telset Start Receiver lt P2 gt Tones EDD La gt 6 45 45 60 60 Summary Hold Filters mm vl bern mo 10 10 10 mo Mode N Transmitter lt P1 gt ere EXIT 35 TT Level dBm j stat 16104 Service aa wis26a TIMS df 12 10PM Configure each tester using the TX and RX setup controls on the left side of the display See Setting Up the Transmitter and Receiver TX RX Setup page 2 7 On the TX tester use the Transmitter Level controls to set the level of the transmit signal Set Pass and Fail limits for this test using the Pass Fail Criteria button and window Tap Start at the top of the screen on both testers On the RX tester observe the Receiver display for a summary of the test results En Sr E Cur
58. TIMS tester can be programmed with as many as ten test sequences Note The editing buttons appear at the right of the screen only if the Individual Tests option is chosen when the TIMS is started If Auto Test is chosen at startup the Auto Test screen does not have the editing buttons and sequences cannot be changed IN1626A TIMS Auto Test 00 00 00 us Kc File Measuremen Signaling Auto Test Telset Start I Auto Test SFLA 2 Test Data Value P TimedTest 2 FLA 9 DMMtest level 9 noise attenuation nht r Speaker Control b Astat N1610A Service Advi N1625A TIMS Rad 2 15 PM Auto Tests Menu The Auto Tests menu is at the left side of the screen whenever Auto Test is enabled The menu lists all available sequences of tests The arrow buttons at the bottom of the menu control which sequence is selected and highlighted 8 15 TIMS Reference Auto Test Sequences Detail and Results Window The area at the middle of the screen displays information about the selected test sequence e Name of the sequence e Tests included in the sequence in the order they run e The types of results yielded by each test e Fields for results values which display at the end of each test in the sequence e P F indicators that indicate whether the results are within the pass and fail limits see Pass and Fail Limits page 8 11 The indicators light if the results are within pass and fail
59. Test Auto Test POTS Active Loop Data Value P F resto e a current emuoro mane FQ en ae CO RET lev 31d Q Noise 190dm par Bee 1230dm O Bo wae O pnm os O Eniordkerip 494 O Briodermp ids 2 17 Using the TIMS Module 2 18 Single Frequency Level and Attenuation Single FLA Test 3 2 Cross Talk NEXT FEXT Tests 3 5 Signal to Total Distortion S TD Test 3 7 23 Tone Test 3 9 Phase Jitter Test 3 14 Attenuation and Group Delay Distortion Test 3 17 Phase and Amplitude Hits amp Interruptions Test 3 19 Performing TIMS Transmission Tests Performing TIMS Transmission Tests Single Frequency Level and Attenuation Single FLA Test Single Frequency Level and Attenuation Single FLA Test This test checks signal strength and line attenuation A Single FLA test can be performed using a TIMS at each end of the line or one TIMS and a loopback at the far end of the line For more information about the Single FLA screen see page 9 2 Note For FLA tests to work properly noise interference must be at least 20 dB lower than the signal being measured otherwise the readings may be invalid SFLA Test Configurations TIMS TIMS TX mode End to end test RX mode gt 4 gt gt TX RX TIMS RX TX mode ry Loopback test RX Exchange gt lt gt gt Loopback or D 2 s TIMS in RX TX loopback mode
60. Time 00 00 00 Test Status STOPPED TEST INFORMATION Customer Name Operator Id Comments TEST CONFIGURATION ade Normal Operation X RX Mode TX RX Porel TX TX Setup 600 Ohms Bridge No Hold No Pore2 RX RX Setup 600 Ohms Bridge No Hold No X Frequency 1508 Hz 6 View the contents of the file using the Up and Down arrows then tap the Print button Caution Make sure you have a HP Deskjet printer connected to the platform you are using If no printer is connected sending the Print command freezes the Service Advisor and requires a restart Unsaved data will be lost 7 Tap the Close button on the displayed screens until you return to the main TIMS Tester screen 14 13 Printing and Reports Changing Default File Names Changing Default File Names You can enter and change default names for different types of reports l 2 Note 5 To open the TIMS Reports menu tap Reports in the File menu IN1626A TIMS Reports Create View jPrint Delete Header Information Default Names Close Tap Default Names for the Edit Default Report File Names screen Edit Default Report File Names Default filename Select an entry to edit Report Default File Name gt SFLA TEST SFLA NOISE TEST noise 23 TONE TEST 23T LONG BALANCE LBAL Saves filenames PIAR PAR IMPULSE NOISE YOIC IMPNVB Scroll buttons Use the arrow buttons to selec
61. a one second pause code in the dial string The pause code instructs the Signaling Module to wait one second before proceeding Consecutive pause codes can be inserted into the dial string to produce a longer wait The asterisk is a DTMF special character The pound sign is a DTMF special character A B C D DTMF special characters Number Buttons 1 through 0 The numbered keypad buttons enter individual digits in the dial string 13 3 Signaling Screen Reference Dial Monitor Controls Dial String Entry Field Displays the Dial string as it is entered The display includes a blinking cursor that shows where editing actions occur Dial String Editing Buttons There are seven buttons located just below the dial string display field Use these buttons to modify a dial string entry DT 253 563 B Insert b bl Before Delete Clear All Moves the cursor to the first string element Moves the cursor one element to the left Moves the cursor one element to the right Moves the cursor to the last string element Inserts an element before the cursor s position Deletes the element preceding the cursor s position Clears all elements from the string Load Sequence Opens the memory location selector menu Each of the SN buttons in the menu is linked to a dial string storage location Tapping a SN button retrieves the string stored in that location and displays it in the dial stri
62. al Distortion 0 132 a o ea Eile Measurement 2 Auto Test Telset Si Receiver lt P2 gt 13 1 um 48 EIU Test Mode Psopho Q Bridge 820 Notch Hold o Filters TX Setup RX Setup f Pass Fail z Criteria Mode EE Z E sree Speaker Control Tele endum ifs o dBm start _N1610A Service ad 16254 Tms 529 9 7 45 AM EH 6 Setthe TX RX Mode to RX Only 7 Use the psophometric or channel filter 8 Set Pass and Fail limits for this test using the Pass Fail Criteria button and window EN Hi x 65 dB r Active Value Low Min 10 dB 20 10 dB Active Value Pass Fail Criteria 9 Observe the Receiver display for test results 3 8 Performing TIMS Transmission Tests 23 Tone Test 23 Tone Test The 23 tone test measures attenuation distortion and envelope delay distortion EDD for the voice band The test transmits 23 different frequencies 203 125 Hz to 3640 625 Hz as specified in IEEE Standard 743 1995 For more information about the 23 Tone Test screen see page 9 6 This test typically uses two TIMS testers one at each end of the line You can also use a Single tester to run a loopback test over two twisted pairs The test results are then divided by two Both twisted pairs must have identical characteristics for test results to be accurate 23 Tone Test Configuration
63. al string Using Signaling with the Tims Module TIMS Screen Components 8 2 Test Setup Controls 8 5 TX RX Setup Controls and Indicators 8 6 Test Modes 8 8 Filters 8 10 Pass and Fail Limits 8 11 The Receiver Display 8 12 Transmitter Frequency Controls 8 13 Transmitter Level Controls 8 14 Auto Test Sequences 8 15 Telset Option 8 19 Select a Test Menu 8 20 Calibration 8 24 TIMS Reference TIMS Reference TIMS Screen Components TIMS Screen Components This section describes the major components of TIMS screens The following figure shows the major components of a typical TIMS screen Not all screens contain all components Test setup controls IN1626A TIMS Single Frequency Level amp Attenuation Test lt SFLA gt LA EIL E File Measuremen Signaling Auto Test Telset Receiver lt P2 gt 00 00 Toolbar Receiver display and controls Frequency 10 kHz lt Range 1 gt Expected Frequency ange TX RX setup controls and indicators Hold Filters TX Setup RX Setup TX Level i mex Sir 60 ieii Aeaee _ MBAO EB ice Ad eead wien ms aD 12 34PM R95 12 34PM 34 PM S Transmitter setup controls TIMS Reference TIMS Screen Components Toolbar The title bar and toolbar shown below appear at the top of every TIMS screen and contain test and measurement functions and co
64. alue indefinitely Interruptions are reductions in signal level of 12 dB or more Interruptions may last for a short time just over 4 ms or they may last indefinitely Conditions such as equipment malfunctions high impedances or weather related attenuation can cause an interruption IN1626A TIMS Phase and Hits amp CURL S 38 Pi KO o RX Rx r Reverse Impedance 600 600 o Q Bridge Q told Filters TX Setup RX Setup 8 5Deg 2a 6a Passive 60 Threshold Threshold Threshold Criteria Mode ae Control 1 fof 2 o E 4 3 0 jf stt _N16104 service ad wiezea ms 5549 9 7 44 am 5 9 14 TIMS Transmission Test Screens Reference Phase and Amplitude Hits amp Interruptions Screen Transmitter Controls and Indicators In the TX or TX RX modes selecting this test automatically sets the transmitter frequency to 1020 Hz and the level to 13 dB The level can be adjusted in the range of 40 to 0 dBm0 RX only mode disables these controls Receiver Controls Weighting The Weighting button selects the proper weighting filter for the phase and amplitude jitter tests The available bandpass filters are e Standard filter with a 20 to 300 Hz bandpass e Low frequency filter with a 4 to 20 Hz bandpass e Combined bandpass filter with 4 to 300 Hz bandpass Repeatedly pressing the Weighting button cycles throug
65. amp Group Delay Distortion Screen This screen controls a test that measures the differences in the reception attenuation and delay of 23 tones in a test signal The test can be run with one TIMS tester in loopback mode but using two TIMS is preferred When using two TIMS testers one transmits a test signal and the other TIMS receives and analyzes it When using one TIMS tester the tester transmits the test signal into one line receives it from another then analyzes the received signal The test signal is an automatically configured 23 tone signal When the TIMS tester analyzes the received signal it compares the differences in attenuation and transmission delay of the 23 tones The test conforms to ITU Recommendations M 1020 M 1025 M 1030 and M 1040 To aid in qualifying the line a tolerance mask can be applied to the analyzed signal See Masks Button page 9 12 See Aitenuation and Group Delay Distortion Test page 3 17 IN1626A TIMS Attenuation amp Delay Distortion O 00 00 00 ga o Ea File Measurement Signaling Auto Test Telset Start MG Receiver lt P2 gt xx 5 Normal Operat Test Mode GDD LI Filters g Pass Fail Criteria Attenuation dB HE TX Setup RX Setup lt lt Mode FLT A TT A NI610A Service Adv wien ms 49 9 2 09 Pm d 1600 2400 3200 Frequency Hz
66. ate of the impulse noise counters used in this test is limited to seven counts per second IN1626A TIMS Noise with Tone Test Roo 00 11 00 11 E e File Measuremeni Rte Auto Test Telset Receiver lt P2 gt 13 1 dBm 61 0 dBm 13 10 Test Mode Psopho 820 Notch Filters TX Setup RX Setup i Pass Fail 30 Criteria gma ee eee Transmitter lt P1 gt lt gt CH SE PTT Teraina pn jf stt _N16104 semkead wieeea mms 49 9 10 25 am S Transmitter Controls Frequency Selecting a notch filter automatically sets the TX signal frequency to the holding tone signal frequency 820 or 1020 Hz The TX Frequency controls are disabled and grayed out Level Sets the transmit signal level The range can be set from 40 dBm to 0 dBm The default setting is 13 dBm 10 6 TIMS Noise Test Screens Reference Impulse Noise with Holding Tone Test Screen Receiver Controls and Indicators The receiver indicators show impulse noise counts and visual displays of the number of impulse noise spikes detected at each threshold level between 0 and 1 000 The level of the noise spike determines in which group or groups the spike is counted Low The number of times the noise level exceeded the low level impulse noise threshold see Set Low Threshold Middle The number of times the noise level exceeded the middle level impulse noise threshold which is 4
67. ave report information during a test or after stopping it You can save the information in either the TIMS Test module or the Flash Memory card Reports can also be saved to a pc using SA Companion See the Service Advisor Portable Test Tablet User s Manual for more information To save results in a file 1 Open the File menu and tap Reports The TIMS Reports menu opens IN1626A TIMS Reports Create iewjPrintjDelete Information Default Names 2 Tap Create The Report screen opens Tap the arrow buttons to view the report 3 Tap the Save button The Save Report File window opens Save Report File File Name Key in a Use the File Name gemei IFSLAZ File Name Select an Existing File Name Size Modified E 1KB 15Mar2001 10 35 eM 2 FEE 2 8 5 E N1626A TIMS Red PC Card If you tap the Close button the report information is not saved and you return to the TIMS Reports menu 14 9 Printing and Reports Saving a Report Select a filename When the Save Report File screen opens you can save the file using one of the filenames listed on the screen or enter a new one e To use an existing filename highlight a name in the list using the arrow keys then tap Use Selected File Name You ll see the selected name appear in the File Name field Go to step 6 e To enter a new filename go to step 5 To enter a new filename tap the
68. ays test results and user defined receiver settings such as pass and fail limits and measurement ranges Receiver lt P2 gt Low Middle High 13 0 dBm 9 0 dBm 5 0 dBm Measurement range upper limit Measurement gauge Measurement range lower limit Test parameter control Some test results display as bar gauges or graphs others display as arrays of values like the window below Receiver lt P1 gt Capacitance 51 nF km Characteristic Capacitance nF mi nF km When the receiver displays gt gt gt the signal characteristic is greater than the test parameters When the receiver displays the signal characteristic is smaller than the test parameters 2 11 Using the TIMS Module Dial and Hold Functions Using a Butt Set Dial and Hold Functions Using a Butt Set This section describes how to perform dial and hold functions with the TIMS tester using a butt set for example dialing the exchange to request a tone on the line then holding the line for testing See Telset Option page 8 19 The TIMS tester can also perform dial and hold functions without a butt set see Chapter 7 Using Signaling with the Tims Module Dial and Hold Functions TIMS DIAL mode TXorRX gt lt Cm line with butt set 2 Use TIMS Measure option Butt Set to hold line for testing connected to Aand B posts gt COlExchange To perform dial and hold l
69. ce opens a keypad that sets the characteristic capacitance of the wire under test This value can be obtained from the cable manufacturer The 51 nF km default is for 26 ga twisted PVC Capacitance Displays the line capacitance measurement Length Displays the calculated line length 11 6 Loop Test Screens Reference Digital Multimeter Screen Digital Multimeter Screen This screen displays the dc voltage up to 204 Vdc between A and B on the twisted pair IN1626A TIMS Digital Multimeter Test lt DMM gt 00 00 00 as o ge File IMeasuremen Signaling Auto Test Telset iG Receiver lt P2 gt DC Voltage Kn on nx Qr Reverse Impedance 9 Bridge Hold id TX Setup RX Setup RX Only TX RX Mode r Speaker Control B strt _N1610A Service Ad 16254 Tms RBI 23am S Filters Pass Fail Criteria Receiver Indicators DC Voltage The dc voltage up to 204 Vdc on the line Polarity is indicated as the voltage of A relative to B e If Ais greater than B polarity is positive e If Bis greater than A polarity is negative Warning Use extreme caution when measuring high voltage Loop Test Screens Reference Load Coil Detection Screen Load Coil Detection Screen This screen displays the results of a test that checks for load coils on the line Up to four coils can be detected IN1626A TIMS Load Coil Dete
70. ce Test 00 00 00 Bs za o KE ica File Measuremen Signaling Auto Test T Normal Operation Test Mode Psopho Hold Filters T Pass Fail RX Oi ly E i Criteria Lom Mode ESI Ts HENE T HEE Astat N16104 service Ad 1626 Tms R83 9 19 am S 4 Tap the Filters button and select the appropriate filter 5 Tap Start at the top of the screen and observe the Receiver window for test results Receiver lt P2 gt Balance 4 14 Complex Impedance and Return Loss Test 5 2 SRL ERL Test 5 4 Longitudinal Balance Test 5 6 Capacitance and Loop Length Calculation Test 5 8 Digital Multimeter Test 5 10 Load Coil Detection Test 5 12 Test Loop 430 Ohm Test 5 14 Performing TIMS Loop Tests Performing TIMS Loop Tests Complex Impedance and Return Loss Test Complex Impedance and Return Loss Test This test generates a test signal then measures the magnitude and phase angle of the line impedance To make meaningful measurements there must be no ac or dc voltage on the line and the line should be passively terminated For more information on the Complex Impedance and Return Loss Test screen see page 11 2 Complex Impedance Measurement TIMS TX RX mode Quiet TXIRX Termination 1 Connect the twisted pair being tested to the tester Quiet termination is required at the far end of the twisted pair 2
71. ceiver lt P2 gt Normal Operation o Lil Test Mode 600 o Propho Q Bridge Filters RX Setup 8 Pass Fail RX ai 50 80 El Criteria mm mode Tie EI Ts rfl nee Astat i610 service Ad 16264 Tms 549 9 9 19 am S Note The tester s ground lug is a safety ground only It is isolated from the test cable s shield by a 10 MQ resistor If the sleeve or shield of the test cable is not earth ground this measurement will be inaccurate TX Setup Note To obtain valid readings you must be testing a standard polyethylene cable PIC or PE cable that is between 3 000 and 20 000 feet long Receiver Controls and Indicators Filters Selects a filter for the class of service carried on the twisted pair see page 10 2 Noise The metallic noise on the line after weighting by a receiver input filter Power Influence A measurement of ac noise from nearby power lines Balance A measurement of the power influence minus line noise 10 9 TIMS Noise Test Screens Reference 10 10 11 Complex Impedance and Return Loss Test Screen 11 2 SRL ERL Screen 11 4 Longitudinal Balance Screen 11 5 Capacitance and Loop Length Calculation Screen 11 6 Digital Multimeter Screen 11 7 Load Coil Detection Screen 11 8 Test Loop 430 Ohm Screen 11 9 Loop Test Screens Reference Loop Test Screens Reference Complex Impedance an
72. cify a new value TIMS Reference Transmitter Level Controls Transmitter Level Controls The Transmitter Level controls set the transmit signal level for the current test j Level dem im lele Up and down arrows The arrow buttons increase or decrease the value of a selected digit in the TX Level display EBE Level button If any of the TX Level indicator buttons are tapped the Freq button changes to a Level button which opens the Enter TX Level keypad Enter TX Level 40 dBm 13 dBm gle Keypad number buttons Use these buttons to enter a level value OK Sets the test level to the value displayed on the keypad Cancel Closes the keypad without changing the level setting Clear Deletes the current value and leaves the keypad open so you can specify a new value 8 14 TIMS Reference Auto Test Sequences Auto Test Sequences The Auto Test screen contains controls for editing creating and running sequences of tests Selecting a test sequence in the Auto Tests menu then tapping Start runs the tests in the sequence in order When the tests finish the screen s title bar changes from N1626A TIMS Auto Test to N1626A TIMS name of test sequence and results of the tests display in the fields at the center of the screen The TIMS comes with a library of test sequences installed These are examples users are encouraged to create their own sequences to meet their needs The
73. ction Test 00 00 00 rs ey amp e Stop Ems File IMeasurement Signaling Auto Test Telset Start A Receiver P1 Estimated Load Coils __ 2 2 a 5d a Filters Normalized Voltage 2 K 0 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 p Frequency Hz Lond Lond Mode EE RERE En peo E Start __N1610A service ad wissen TINS R893 11 35 AM Receiver Indicators Estimated Load Coils The number of load coils estimated to be on the line based on a frequency sweep of the line The display graph shows normalized loop impedance relative to frequency The Y axis shows the normalized voltage drop across the line when the line is in series with the TIMS tester Results are corrected so voltages are all between 0 and 1 The X axis shows the signal frequency in Hz Load coils ususally appear as dips in the graph 11 8 Loop Test Screens Reference Test Loop 430 Ohm Screen Test Loop 430 Ohm Screen This screen displays the current in the local loop with a 430 Ohm load applied a simulated telephone off hook condition IN1626A TIMS Test Loop 430 1 3 Test 00 00 00 ENS E An Ea Measuremeni Signaling Auto ai Telset G Receiver lt P2 gt TX Setup RX Setup RX m m Mode Peds T4 T Astat 11610 Service ad wie26a Tims 49 9
74. d Return Loss Test Screen Complex Impedance and Return Loss Test Screen This screen controls a test that measures the impedance and return loss of a signal at any multiple of 100 Hz in a range of 100 Hz to 2 MHz The Receiver window displays magnitude and phase angle of the line impedance Return loss is calculated for reference impedances of 600 and 900 Ohms in series with a 2 16 pF capacitor Use this test on twisted pair lines having these characteristics Angle magnitude less than 50 degrees Impedance magnitude between 50 and 300 Ohms IN1626A TIMS Complex Impedance and Return Loss Test P1 P2 KO rx Rx x Reverse Impedance 9 9 Q Bridge Q noa TX RX Setup mx TX RX Mode E EIS TA Astat N1610A Service Ad N1626A TIMS ga a X o File Measurement Signaling Auto Test Receiver P1 r Complex Impedance Magnitude gt gt gt Phase Angle 148 5 Deg Inductive Capacitive Return Loss 900 Ohms 0 dB 600 Ohms 0 dB Series Capacitance 2 16 uF Test Mode A Criteria Tela Transmitter Controls Transmitter Frequency Sets the test transmit frequency within a range of 100 Hz to 2 MHz The frequency increments in 100 Hz steps For example if you set 549 9 1035 am S the frequency to 1530 Hz the tester rounds this value to 1500 Hz Loop Test Screens Reference Complex Impedance and Return Loss Tes
75. d functions Connect Activates your choice and opens the window shown below Butt set dial on port 1 enabled Use the butt set to place a call or resume a previous call The Measure button will disengage the butt set and 7 hold the line while the Disconnect button will disengage the butt set and drop the line 1 Measure Disconnect Measure Holds the selected line P1 or P2 for testing Disconnect Releases the selected line P1 or P2 Close returns you to the previous screen without implementing any selections Disconnect Releases the selected line P1 or P2 Close Returns you to the previous screen without implementing any selections TIMS Reference Select a Test Menu Select a Test Menu The Select Test button opens the Select a Test menu containing test and measurement functions Transmission Noise Loop Advanced 23 Tone Test Phase Hits Level EDD Amplitude Hits S TD IMD S N and Interruptions Signal to Total Distortion with Holding Tone Phase Jitter Attenuation and Group Delay Distortion Calibrate Note If a test is running the Select Test button is disabled Stop the test to select a different test The test selection buttons are organized under four test group tabs Select the appropriate tab and test selection button as follows Transmission Tab Single Frequency Level amp Attenuation Calls a
76. d the measurement range and any user defined settings see page 2 3 Test parameter controls are used for some tests to configure test parameters such as the low threshold for impulse noise tests 8 12 TIMS Reference Transmitter Frequency Controls Transmitter Frequency Controls The TX Frequency controls set a transmitter signal frequency for the current test Tap a digit on the screen to select it then use the arrow keys to change the value Frequency Hz The up and down arrow buttons increase or decrease a selected digit EE The Freq button opens the Enter TX Frequency keypad Use this keypad to enter specific frequency values and units Tap OK when the new transmit frequency is selected or Cancel to return to the test Enter TX Frequency 50 Hz 2000000 Hz HDSL 292 kHz 584 kHz Keypad buttons Use these buttons to enter a frequency value and select the unit of measure Buttons at the right side of the keypad set the transmit frequency to preset values for different applications SF Skip Signaling frequencies skip This option filters out signaling frequencies in the 2130 Hz to 2430 Hz range These frequencies carry signaling information between central offices OK Sets the test frequency to the value displayed on the keypad Cancel Closes the keypad without changing the frequency setting Clear Deletes the current value and leaves the keypad open so you can spe
77. d to define the range of acceptable test results See page 2 3 for information about how to change pass and fail limits Pass Fail Criteria Pass Fail Limits Hii x 13 0 dBm 4 z i notice Value Attenuation Pass Fail Criteria Frequency Low Min 60 0 dBm B n Active Value EN a Measurements Lists the measurement values for which limits can be set Use the up down arrow buttons to select an item or tap the item Active Tap the corresponding button to enable the high or low limit for the selected measurement Value Opens the Enter Value keypad to enter a new value OK Applies the new pass and fail limits Cancel Closes the Pass Fail Criteria window without changing the pass and fail limits 8 11 TIMS Reference The Receiver Display The Receiver Display The Receiver display in the middle of a test screen shows test results and measurements See the descriptions of individual test screens for information about that test s Receiver display Receiver lt P2 gt Low Middle 13 0 dBm 9 0 dBm dBm 13 0 dBm Measurement range upper limit Measurement gauge Measurement range lower limit Set Low gt Threshold Test parameter control High 5 0 dBm Measurement gauges show test results and provide information about the receive signal The gauges show the default values an
78. dB above the low level threshold High The number of times the noise level exceeded the high level impulse noise threshold which is 8 dB above the low level threshold Level The strength in dBm of the received signal Note Notice that the Pass Fail Level on the sample screen is set to 40 dBm The holding tone must be above 40 dBm to get an accurate noise measurement Set Low Threshold Opens a keypad used to define the threshold level for measuring impulse noise Any noise spikes above this level are counted as impulse noise The threshold range is from 30 to 95 dBrn with a default value of 77 dBrn 10 7 TIMS Noise Test Screens Reference Impulse Noise Test Wide Band Screen Impulse Noise Test Wide Band Screen This screen controls a test that measures impulse noise as weighted by the selected E F or G wide band filter Note The counting rate of the impulse noise counters used in this test is limited to a maximum of seven counts per second IN1626A TIMS Impulse Noise Test es Band 00 00 18 ae amp Ea Eile Measurement Signaling Auto Test Telset Start i Receiver lt P2 gt Middle PL K Ore 9 dBm nx tx Cagle tse 9 o Q Bridge told Filters Set Low Pass Fail RX Only Threshold Criteria TX RX Mode Pj i ES Astat N1610A Service Ad I N16264 TIMS Receiver Controls and Indicators
79. dow opens Pass Fail Criteria Pass Fail Limi High Max 13 0 dBm A Anise Value Low Min 60 0 dBm Fd mm Active Value Pass Fail Criteria Cancel In the Pass Fail Criteria window select the limit you want to change In the example you could set limits for Level Attenuation and Frequency Select the limit by tapping it or by tapping the up or down arrow Tap the Active button for the limit high or low you want to change Tap the corresponding Value button The Enter Value keypad opens The range of usable limits is displayed in the title bar of the keypad Enter Value 60 0 13 0 dBm Enter a new limit and tap OK to set the new value If the values entered are outside the range of usable limits a Value Error message box displays showing the usable range If the values entered are within the usable range the Enter Value keypad closes and the values entered are set as limits To change the other limit values repeat steps 2 3 4 and 5 for that limit Using the TIMS Module Setting Up a TIMS Test 7 When you are done specifying new limit values tap OK in the Pass Fail Criteria window to activate the new limits Flags are added to the display to show the new user defined pass fail limits Receiver lt P2 gt Attenuation 1000 Hz 13 1 dBm High limit flag fw ee z Expected Frequency RX
80. e ae 2 o a File Measurement Signaling Auto Test Telset Start Help Spectrum dBm PSD dBm Hz reris iles d UE ES L ES Band Cursor Select Test Oo o Normal Operation Test Mode Bridge told RX Only TXIRX Mode TX Setup n Setup one 5000 Frequency Hz 7500 10000 Pass Fail Criteria Speaker Control FT ux I Hold Disturber Mask start _N1610A Service ad wiezea Tms 49 9 6 16 am 5 Use the TX and RX setup controls on the left side of the display to configure the tester See Setting Up the Transmitter and Receiver TX RX Setup page 2 7 Tap the Band button in the Receiver window and select a frequency range for the test Tap the PSD tab in the Receiver window Tap Start at the top of the screen and observe the Receiver window for test results Spectrum dBm PSD dBm Hz 0 0 T gt Cursor gt 35 0 2500 5000 Frequency Hz 7500 10000 6 3 Performing TIMS Advanced Tests Power Spectral Density PSD and Power Spectrum Tests Power Spectrum Test To run a power spectrum test 1 Complete steps 1 through 5 in the PSD test above To determine whether a line can support ADSL service use the 2 MHz band 2 Tap the Spectrum tab i
81. e and that there are no opens in the line Note For ADSL testing take dc voltage measurements on both sides of POTS splitters that is at the exchange and subscriber 5 11 Performing TIMS Loop Tests Load Coil Detection Test Load coils are installed on long loops to improve the quality of voice transmission These coils must be removed before DSL service such as HDSL or ADSL can be deployed To aid in locating coils the TIMS tester can detect up to four load coils from a single access point at either end of the line Load Coil Detection TIMS TX local loop For more information on the Load Coil Detection Test screen see page 11 8 To run a Load Coil Detection test 1 Connect the tester to the twisted pair line For best results the far end should be shorted but this is not necessary 2 Tap Select Test 3 Under the Loop tab tap Load Coil Detection The Load Coil Detection Test window opens IN1626A TIMS Load Coil Detection Test 00 00 00 us File IMeasuremen Signaling zx Test P2 Receiver lt P1 gt ues Qn Estimated Load Coils nx Qr 1 0 Reverse 30 8 Impedance 3 0 6 E E 9 9 20 4 Ow i Q Hod Filters TX RX 0 0 Setup 0 500 1000 1500 2000 2500 3000 3500 4000 4500 i Frequency Hz Pass Fail lt Criteria lt Mode S00 3E Enns eee E __N16104 Service ad wiseen mS
82. e Save Current Sequence window The Cancel button closes the Save Current Sequence window without making changes Note Saving the current dial string to a memory location that contains a previous dial string overwrites the older string Previously stored dial strings or dial string segments can be modified this way 7 4 Using Signaling with the Tims Module Recalling and Sending a Stored Dial String Recalling and Sending a Stored Dial String Follow these steps to recall stored dial string 1 Note Tap the Load Sequence button to call the memory location selector DT 253 563 B Insert Clear gt gt l Before Delete An Insert Digits Insert Action Load Sequence Save Sequence Tap a memory location button The stored dial string displays in the dial string field If a dial string is already in the display be sure to tap the Clear All button before you tap a stored number button Otherwise the stored dial string is added to the end of the current string For more information about saving dial strings see Storing a Dial String page 7 4 Tap the Go Off Hook Now button to go off hook The Signaling Status Off Hook indicators light when the CI and CO interface circuits go off hook Signaling Status CI co off Hook Qo On Hook O When both ends of the trunk are off hook tap Start at the top of the screen to send the di
83. e platform you are using If no printer is connected sending the Print command freezes the Service Advisor and requires a restart Unsaved data will be lost 14 4 Printing and Reports Printing a Report Printing a Report You can print a report that contains configuration and test results during a test or after you tap the Stop toolbar button to stop a test To print a saved report see Viewing and Printing Saved Reports page 14 12 To print a report for the test that is currently running or a test that you just stopped Caution Make sure you have a HP Deskjet printer connected to the platform you are using If no printer is connected sending the Print command freezes the Service Advisor and requires a restart Unsaved data will be lost Note If you want a header to print on the report the header must be applied before performing this procedure See Entering Test Header Information page 14 7 1 Open the File menu then tap Reports The TIMS Reports menu opens IN1626A TIMS Reports Create a ae 3 T Information Default Names i Close i 2 Tap the Create button on the TIMS Reports screen A Report screen opens with the configuration and test results The title of the Report screen indicates the test that is currently running or was last stopped 14 5 Printing and Reports Printing a Report For example if you are running a Swept FLA test or just stopped it tapping the Create b
84. e receive signal is compared The difference between the reference level and the receive signal level is displayed in the Attenuation display of the Receiver window Oom TX Level RX Level User Specified None In Swept FLA tests turns off the attenuation reference level TX Level When running a loopback Single FLA test in TX RX mode sets the tester s TX signal level as the reference level RX Level In TX RX or RX only modes stores the current level of the RX signal as the reference level for later measurements User Specified Opens a keypad where you can define a reference level for the test The range for this level is from 60dBm to 13dBm 12 5 Advanced Test Screens Reference Swept FLA Screen Note The RX Level option can be used to capture a generated signal level for use as a reference in future tests Cursor Tapping the Cursor button displays a signal marker and tag containing information about the signal at each of the data points in the test results You can move the cursor and tag to another data point as follows e Usethe left and right arrow buttons to move to the next data point Double tapping the left or right arrow button moves the cursor to that end of the display e Touch a data point on the display Receiver Display Displays a frequency response curve for the signal being received by the tester s receiver NONE 4 C gt Attn Ref Level Cursor 5 5 s i 17 5 29 0 Z
85. en Receiver Indicators The Phase and Amplitude Hits and Interruptions Test screen receiver functions include a signal power indicator and three event counters Their functions are as follows Level Indicates the average signal level of the holding tone at the module s receiver input This level serves as the reference level from which the gain hit and dropout thresholds can be calculated Phase Hits A phase hit is a sudden change in the phase of a received test tone often caused by automatic switching to standby facilities To qualify as a phase hit the absolute difference between the nominal phase and the instantaneous phase must exceed the Phase Hit Threshold for more than 4 ms The phase hit logic inhibits the phase hit function for 1 second following the detection of a dropout The module can record a maximum of 998 phase hits during the test Amplitude Hits A gain hit is a sudden increase or decrease in the level of a received test tone often caused by automatic switching to standby facilities To qualify as a gain hit a signal fluctuation must exceed the Gain Hit Threshold for more than 4 ms The gain hit logic is also inhibited for 1 second following the detection of a dropout The hit counter can record a maximum of 998 gain hits during the test Interruptions An interruption is a gain hit with a drop in level of more than 6 dB or 10 dB Such a signal drop is large enough to be deemed a loss of signal and is large enough to
86. ensity PSD and Power Spectrum Tests 6 2 Swept FLA Test 6 5 Using Signaling with the Tims Module 7 1 Entering and Sending a Dial String 7 2 Storing a Dial String 7 4 Recalling and Sending a Stored Dial String 7 5 TIMS Reference 8 1 TIMS Screen Components 8 2 Test Setup Controls 8 5 TX RX Setup Controls and Indicators 8 6 Test Modes 8 8 Filters 8 10 Pass and Fail Limits 8 11 The Receiver Display 8 12 Transmitter Frequency Controls 8 13 Transmitter Level Controls 8 14 Auto Test Sequences 8 15 Telset Option 8 19 Select a Test Menu 8 20 Calibration 8 24 10 11 12 13 Contents TIMS Transmission Test Screens Reference 9 1 Single Frequency Level and Attenuation Single FLA Screen 9 2 Signal to Total Distortion S TD Test Screen 9 5 23 Tone Test Screen 9 6 Phase Jitter Screen 9 9 Attenuation amp Group Delay Distortion Screen 9 11 Phase and Amplitude Hits amp Interruptions Screen 9 14 TIMS Noise Test Screens Reference 10 1 Noise Test Screen 10 2 Noise with Holding Tone Test Screen 10 4 Impulse Noise Test Voice Band Screen 10 5 Impulse Noise with Holding Tone Test Screen 10 6 Impulse Noise Test Wide Band Screen 10 8 Noise Balance Test Screen 10 9 Loop Test Screens Reference 11 1 Complex Impedance and Return Loss Test Screen 11 2 SRL ERL Screen 11 4 Longitudinal Balance Screen 11 5 Capacitance and Loop Length Calculation Screen 11 6 Digital Multimeter Screen 11 7 Load Coil Detection Screen
87. ent mA Milliampere Measure of current one thousandth of an ampere Mb or Mbit Megabit One million bits MB or Mbyte Megabyte One million bytes Glossary Mbps Megabits per second MHz Megahertz Measure of frequency one million cycles per second ms Millisecond One thousandth of a second NEXT Near end cross talk NHT Noise with Holding Tone NIC Network Interface Card A type of PCMIA card NiMH Nickel Metal Hydride A type of smart battery node Any addressable device in the network such as a host notch filter A filter that removes a certain frequency from the signal typically a holding tone NTG Noise to Ground NWT Noise with Tone OC Optical carrier octet Eight bits Typically refers to a group of bits that spans more that one byte Compare byte packet A block of serial data identified by a header and end byte P AR Peak to Average Ratio PI Power influence A test used to measure the amount of noise on each wire in a twisted pair Gloss 3 Glossary PING Packet InterNet Groper ppm Parts per million POTS Plain old telephone service PSD Power Spectral Density QOS Quality Of Service Measurements used to set up ATM service and monitor performance RAM Random access memory RMS Root mean square A type of detector used for TIMS measurements ROM Read only memory RX Receive An input function SCPI Standard Commands for Programmab
88. equency Frequency The frequency of the receive signal in hertz Hz Level The receive signal strength in dBm from 40 dBm to 13 dBm Attenuation The difference between the receive signal level in dB and the attenuation reference level For example if the reference level is 11 dBm and the receive signal level is 13 dBm attenuation is 2 dB Note If the received signal level is less than the reference the attenuation display is a positive number if greater than the reference the attenuation display is negative TIMS Transmission Test Screens Reference Signal to Total Distortion S TD Test Screen Signal to Total Distortion S TD Test Screen This screen controls a test that compares the power of the receive signal to the weighted power of all other signals and noise on the line the total signal distortion The test is useful for determining the quality of a line for voice service and for evaluating excessive error rates on data lines The test conforms to ITU Recommendation ITU T 0 132 See Signal to Total Distortion S TD Test page 3 7 IN1626A TIMS Signal to Total Distortion 0 Lg Signal to Total Distortion Received Signal Level Test Mode Psopho 820 Notch EL a Filters TX Setup RX Setup 8 mex z D ere EE ed ii aec AAE ERE if stat N1610A Service Ad N16264 Tms 549 9 7 45 am S Level Controls Transmi
89. ests Noise Test Loop Noise Noise between the tip and ring conductors is known as loop noise metallic noise tip to ring noise or differential noise To measure loop noise 1 Connect the tester to one end of the line 2 Apply quiet termination to the other end of the line 3 Complete the noise test procedure on page 4 3 Note The acceptable noise level on a voice line is typically 20 to 30 dBm Steady State Noise in POTS Band To measure steady state noise on ADSL lines that also carry POTS complete the noise test procedure on page 43 using the psophometric or channel filter The acceptable limit for idle channel noise is 18 dBrn Performing TIMS Noise Tests Noise with Holding Tone Test Noise with Holding Tone Test This test generates a holding tone while measuring noise on the line The holding tone turns on any voice activated devices in the circuit for example the codec on a line card At the measurement end a notch filter removes the tone so only noise and distortion are measured The test conforms to ITU Recommendation ITU T 0 132 For more information on the Noise with Holding Tone Test screen see page 10 4 Noise with Tone TIMS RX only mode Holding tone Notch Psophometric from Exchange RX filter filter Customer Premises TIMS TX RX mode A TX Transmit holding tone Transmitter Exchange Psophometric _ Notch b Loopback a f
90. et Start Help Receiver lt P2 gt Test Normal Operation Test Mode TX Setup Setup T purs 2500 5000 7500 10000 Pass Fail RX m Frequency Hz Criteria m Mode Fim Control 50Hz pd bd Hz Lo 00 kHz BEEN 0 dBm pd Start bd Lo Frequency BEEN stat NisioAsewice ad memams RoESesean e 4 Set the tester s TX RX Mode to TX Only 5 Set the tester s Transmitter Start Frequency and Stop Frequency values see page 8 13 The Swept FLA test supports only voice band frequencies 6 Set the Transmitter Level to the desired signal level typically 19 dBm see page 8 14 Receiving TIMS Setup 1 Connect the receive port of the tester to the twisted pair being tested 2 Tap Select Test The Select a Test window opens 3 Under the Advanced tab tap Swept FLA 4 Set the tester s TX RX Mode to RX Only 5 Set the tester s Transmitter Start Frequency and Stop Frequency to the same values set for the test signal transmitter 6 Set the Attenuation Reference Level to a reference value normally the transmitted signal level 6 6 Performing TIMS Advanced Tests Swept FLA Test Running a Swept FLA Test To run a Swept FLA test 1 Complete the transmitting and receiving TIMS setup procedures that begin on page 6 5 2 Tap Start at the top of the screen on the TX tester to transmit the test frequencies 9 Tap Start at the top of the
91. for S A Tablet and modules 910 Additional S A Tablet User s Manual N1611A Additional NiMH battery for N1610AB N1612A Universal Vac power adapter and power cord select one ABA North America ABB European HPSA ABG Australia ABU UK ACD Switzerland ACF Japan AKJ Israel AKM China N1613A External battery charger for N1610B N1614A 12 Vdc power adapter for vehicle power source N1615A Softsided carrying case for N1610B and accessories N1616A Hard carrying case for N1610B and accessories N1617A Service Advisor Connectivity kit includes Service Advisor Companion software DB 9 to DB 9 null modem cable 15 11 Specifications Ordering Information TIMS Module Ordering Information continued Part Number Product Description N1618A 56 k V 90 Modem PC card N1620A 10 BaseT Ethernet LAN PC card N1621A 10 Mb Compact Flash and PCMIA adapter N1623A Grounded test cable equipped with two Bantum connectors and alligator ground clip N1624A Grounded test cable equipped with two WECO 310 connectors and alligator ground clip N1626A xDSL 2 MHz TIMS Module ITU T N1626A 910 Additional xDSL TIMS User s Manual ITU T 8120 8845 DB 9 to DB 9 serial null modem cable standard with N1610B 15 12 Warranty Calibration and Service W 1 Warranty Calibration and Service Agilent Technologies Limited Warranty Statement
92. fore above Tapping End Sequence then Yes in the confirmation box replaces the tests in the selected sequence with the newly added ones Create New Sequences The Add button opens the Select a Test window Tapping a test in the window opens the control screen for that test so you can configure it and changes the Telset and Start buttons at the top of the screen The Message button functions as with Insert Test Before above The End Sequence button opens the same confirmation message box as in Insert Test Before but tapping Yes in the confirmation opens the Supply Sequence Name window and keyboard for naming the new test sequence Note The only way to close the Supply Sequence Name window is by typing a name and tapping OK Tapping OK without entering any characters opens an error message box Note If the TIMS tester is programmed with ten test sequences the Add button is disabled One of the existing sequences must be deleted before a new sequence can be created 8 18 TIMS Reference Telset Option Telset Option The Telset option lets you dial over the line or hold the line for testing using a butt set See Dial and Hold Functions Using a Butt Set page 2 12 for instructions on using the Telset option The Telset button opens the Select Dial Port window Select Dial Port Dial Port Port 1 TX Port 2 RX Telset m en Connect Disconnect Close Port 1 and Port 2 Select P1 or P2 to perform dial and hol
93. gure above 2 Tap Select Test 3 Under the Transmission tab tap Phase Jitter 3 14 Performing TIMS Transmission Tests Phase Jitter Test The Phase Jitter window opens IN1626A TIMS Phase Jitter Test y 91 00 00 11 Es o File IMeasuremen n4 Auto Test Telset PL KO o RX Rx Qx Reverse spede Test Mode o o 20 to 300 Hz Bridge e Hold Weighting TX Setup RX Setup g Pass Fail _ Criteria mae mes _ o EE HH UETLIUCEGIEN E Level aem Speaker Control TT sius Level dm start __N16104 service ad 16268 Tims 5549 9 7 37 am Configure the TX or TX RX tester or testers Use the TX RX setup controls on the left side of the display to set up the tester s test configuration see Setting Up the Transmitter and Receiver TX RX Setup page 2 7 The tester s transmit frequency and level default settings are 1020 Hz and 13 0 dBm for the jitter test The transmit level can be changed if necessary On the TX tester tap Start at the top of the screen to begin the test On the RX tester tap the Weighting button to choose a weighting filter The available bandpass filter options are e Standard filter from 20 to 300 Hz Low frequency filter from 4 to 20 Hz Combined bandpass filter from 4 to 300 Hz On the RX tester set the pass and fail limits using the Pass Fail Criteria button and controls See Pass and Fail Limits page 8
94. h the filter options Pass and Fail Limits In TX RX or RX only mode the Pass Fail Criteria button opens a display for defining pass and fail limits See Pass and Fail Limits page 8 11 Threshold Functions The TIMS module tracks the phase of the incoming holding tone providing an average phase reference to which the instantaneous phase can be compared The TIMS module also tracks the holding tone power level and produces a reference signal representing the average input signal level The reference signal defines a level from which signal transients amplitude hits and interruptions can be measured Phase Hit Threshold This setting determines the permissible amount of phase deviation before the deviation is counted as a phase hit The Threshold button opens a menu of threshold settings from 5 to 45 in 5 increments Gain Hit Threshold This setting determines how far the signal gain can deviate from the gain reference level before a gain hit is counted The Threshold button opens a menu of gain deviation threshold settings of 2 dB 3 dB and 6 dB Interruptions Threshold The received level is measured and stored at the start of the measurement interval The stored value becomes the reference level to which the instantaneous level is compared The TIMS Module software sets the interruptions threshold at 6 dB or10 dB below the reference level TIMS Transmission Test Screens Reference Phase and Amplitude Hits amp Interruptions Scre
95. he Frequency controls are disabled Level In TX RX and TX only mode this control sets the transmit signal level from 40 to 6 dBm 13 dBm is the default TIMS Transmission Test Screens Reference 23 Tone Test Screen Receiver Controls Summary Tab The Summary tab opens a window that summarizes 23 Tone test results TED Cursor 13 1 40dB 41dB 4846 50 4B 6 45 45 60 60 Summary Level The strength in dBm of the receive signal S TD The ratio in dB of signal power to signal distortion power the combined power of all other signals and background noise on the line S N The ratio in dB of signal power to noise power that is the power of the background noise on the line 2nd IMD The ratio of the signal power in dB of the combined tones in the test signal to the second order IMD products 3rd IMD The ratio of the signal power in dB of the combined tones in the test signal to the third order IMD products Tones Tab The Tones tab presents a graph showing the levels of the 23 tones y axis as a function of frequency x axis gt 2 Summary Tones 0 0 5 e 1766 Hz 22 4 dBm mn Me mte OER BE Tone Level dBm 0 1000 2000 3000 4000 Frequency Hz TIMS Transmission Test Screens Reference 23 Tone Test Screen EDD Tab The Envelo
96. he string is done tap Start at the top of the screen to begin a signaling sequence 7 Observe the Signaling Status indicators to verify that the CI and CO indicators change state at the beginning and end of the signaling sequence Signaling Status cr co off Hook On Hook 8 At the other end of the line verify that the dial string is received correctly Note When the line is placed off hook in Signaling it remains that way until released even when the TIMS goes to Measurement mode To place the line on hook either release the hold in the Measurement Transmitter TX Port Setup window or tap Go Off Hook Now on the Signaling screen Using Signaling with the Tims Module Storing a Dial String Storing a Dial String Follow these steps to save a dial string You can save up to nine dial strings or segments Each dial string can be from 1 to 128 characters long including action code characters 1 Enter a dial string in the dial string display as described on page 7 2 2 Tapthe Save Sequence button on the Dial Monitor Test screen The Save Current Sequence window opens Save Current Sequence Select Stored Number OK Cancel 3 Use the A and V arrows to scroll through the list and highlight a memory location Locations are numbered SN1 through SN9 Empty locations show None 4 After you select a dial string memory location tap OK to store the current dial string and close th
97. ilent Technologies website at http www agilent com e Call the Agilent Call Center at 800 452 4844 Warranty Calibration and Service Calibration and Service Calibration and Service Calibration This instrument must be calibrated only by authorized Agilent Technologies personnel Unauthorized service or calibration will void the warranty e Agilent Technologies suggests that the TIMS Test Module N1626A be calibrated every three years To arrange for calibration please contact the Agilent Instrument Support Center at 800 403 0801 to obtain an RMA return material authorization number and receive shipping instructions Service If your xDSL TIMS Test module is not operating properly carefully check all configuration parameters and connections Improper selection of timing modes or drop channels for example can cause unexpected operation Also check that the module is seated properly in the Tablet or Undercradle If you are still experiencing problems or feel that your module requires service contact the Agilent Call Center at 800 452 4844 Trained personnel are available to help solve your problem or determine if the module must be returned for repair If your module must be returned a Call Center representative will assign an RMA return material authorization number and give you shipping instructions No product will be accepted for service without an RMA number Contact the Instrument Support Center at 800 403 08
98. ilter RX Measure noise on RX Testing at Exchange Note When the noise with holding tone test is selected the TIMS tester automatically activates a notch filter To run a noise with holding tone test 1 Tap Select Test 2 Under the Noise tab tap Noise with Holding Tone 4 5 Performing TIMS Noise Tests Noise with Holding Tone Test 3 Note 4 6 Complete the noise test procedure on page 4 3 N1626A TIMS Noise with Tone Test f 00 00 11 00 11 ga Eile Measurement _Signaling a Test Telset Test Mode Psopho 820 Notch Filters Pass Fail m a p Criteria m a Mode BH Contra eff A 4s o i strt N1610A Service Ad N16264 TMs 5 49 9 1025 am The Pass Fail Level on the sample screen is set to 40 dBm The holding tone must be above 40 dBm to get an accurate noise measurement Generate a tone on the line either from the CO or from a TIMS tester at the other end of the line Tap the Filters button and select the appropriate filters To generate a tone using the TIMS tester select the notch filter with the same center frequency as the holding tone you want to send For example to send an 820 Hz tone select the 820 Hz notch filter the tester automatically matches the transmitter frequency to the notch filter Performing TIMS Noise Tests Impulse Noise Measurements Impulse Noise Measurements
99. ing action codes For more information of the Dial Monitor Test screen see page 13 2 To enter and send a dial string 1 Connect the TIMS Module to the circuit under test 2 Tap Signaling at the top of the screen The Dial Monitor Test screen opens IN1626A TIMS Dial Monitor Test File Measurement Signaling Auto Test Start Help Signaling Status m CI co o Off Hook o Q on Hook M 4 gt gt I nen Delete Go On Go Off v Hook Now Hook Now 1 2 3 ar abc def Mode Emulate cr be A M Pause E jki mno B S aafe le e Hook Pars tuv wxyz Clear All Insert Digits Line Insert Action Load Sequence Fine Ei Sequence start _N16104 Service ad 16254 Tms R83 7 56 aM S Note Buttons that are grayed out are not available 3 Use the display keypad to enter digits and special characters in the dial string The dial string displays in the entry field above the arrow buttons Use the arrow buttons to move left and right in the dial string 4 Add pauses to the dial string using the Pause button Using Signaling with the Tims Module Entering and Sending a Dial String 5 To recall a previously stored dial string or segment use the Load Sequence button See Recalling and Sending a Stored Dial String page 7 5 for details on using stored dial strings 6 When t
100. ion S TD Test The S TD test measures the quality of a voice service line and can help minimize the error rate on data lines For more information about the S TD screen see page 9 5 Holding tone TX from CO exchange pa TIMS RX only mode Notch C msg or TIMS tester filter filter Signal to Total Distortion with Holding Tone To run a S TD test complete these steps 1 Connect a TIMS tester to the receiving end of the line 2 Connect a signal source from the exchange or another TIMS tester to the other end See the figure above Note In cases where 4 wire access is available a single TIMS tester can be used in TX RX mode in a loopback configuration This is not a common practice for S TD testing 3 Insert a holding tone 820 Hz at 13 dBm into the transmit end of the line 4 At the receiving end of the line tap Select Test The Select a Test window opens Select a Test Transmission Advanced 23 Tone Test Phase Hits Level EDD Amplitude Hits S TD IMD S N and Interruptions Signal to Total Distortion with Holding Tone Phase Jitter Attenuation and Group Delay Distortion Calibrate Performing TIMS Transmission Tests Signal to Total Distortion S TD Test 5 Under the Transmission tab tap Signal to Total Distortion with Holding Tone The Signal to Total Distortion screen opens IN1626A TIMS Signal to Tot
101. ion 8 3 event log 14 9 pass and fail limits 2 6 SCPI Gloss 4 Screen components 8 3 printing 8 3 14 4 service and calibration W 5 signaling dial monitor controls 13 3 dial monitor test screen 13 2 entering and sending dial strings 7 2 recalling and sending dial strings 7 5 storing dial strings 7 4 signals connecting to TIMS 2 2 signal status indicators 7 3 7 5 signal to noise ratio 9 7 signal to total distortion S TD ratio 9 5 screen 9 5 test 3 7 single FLA screen 9 2 to 9 3 test 3 2 software upgrading amp reloading 1 11 specifications 15 2 SRL ERL screen 11 4 test 5 4 SRL hi Gloss 4 SRL lo Gloss 4 Index support W 4 swept FLA screen test 6 5 12 4 to 12 6 synchronous Gloss 4 T T1 Gloss 4 tablet user interface shutting down 1 8 starting 1 5 telset option 8 19 test duration 2 10 mode selecting 8 8 selecting 2 3 test loop 430 Ohm screen 11 9 test 5 14 tests advanced 2 16 attenuation amp GDD 3 17 load coil detection 5 12 loop 2 16 loop 480 Ohm 5 14 noise 2 15 noise balance 4 13 transmission 2 14 TIMS Gloss 4 TIMS module connecting test signal to 2 2 fuses 1 10 software upgrading 1 11 TIMS screen components cursor option 9 8 9 13 pass and fail limits 8 11 receiver display 8 12 test setup controls 8 5 to 8 9 toolbar 8 3 TX RX controls 2 7 8 7 Index TIMS screens 8 2 23 tone test 9 6 de voltage 11 7 impulse noise voice band 10 5 impu
102. istory Errors History Transmission Impairment Measurement Set N1626A Tablet ready indicator TX RX connector state indicator Telset indicator Error indicator Error history indicator 1 2 Getting Started The N1626A xDSL TIMS Module at a Glance TIMS Module Connectors The TIMS module has the following connectors Craft test and handset connectors Use these jacks to connect a portable telephone or butt set craft test set to the TIMS module for dialing or speaking over the line TIMS line connectors The P1 and P2 connectors each accept a test cable for connecting the TIMS module to a line e Use P1 or P2 to connect to a single line e Use P1 and P2 to connect to two lines or for loopback tests Note The TIMS module has a frequency range up to 2 MHz for qualifying and troubleshooting lines for applications such as HDSL and ADSL Ground lug Use this lug to attach a ground cable to connect the TIMS module to earth ground TIMS Module Indicators TIMS module indicators provide status and configuration information Tablet ready indicator Lights to indicate the module is under power and ready for operation TX and RX indicators Show whether the module s P1 and P2 connectors are configured to transmit TX or receive RX Telset indicator Lights when the module is being used for dialing operations such as dialing or speaking over a li
103. itter Test 7 91 us o Eile IMeasuremen pde Auto Test Telset s Pi xO Or Rx r Reverse 30 Imped Puy CES Test Mode o o 20 to 300 Hz Bridge OD Hold Weighting TX Setup Rx Setup ZOT EN a Criteria a Mode E Control If of2 o 1 3 0 i strt N1610A Service Ad el NI626A TIMS 5549 9 7 37 am S Transmitter Controls and Indicators Selecting the Phase Jitter test on a transmitting TIMS tester automatically sets the transmitter Frequency and Level controls to 1020 Hz and 13 dBm0 respectively The Level controls can be used to adjust the transmit signal level in the range of 40 to 0 dBm0 Receiver Controls Weighting The Weighting button selects the proper weighting filter for the phase and amplitude jitter tests The available bandpass filters are e Standard filter from 20 to 300 Hz e Low frequency filter from 4 to 20 Hz e Combined bandpass filter from 4 to 300 Hz Repeatedly pressing the Weighting button cycles through the filter options TIMS Transmission Test Screens Reference Phase Jitter Screen Pass Fail Criteria The Pass Fail Criteria button functions when the tester is in TX RX or RX only mode to define the range of acceptable input signals When pressed the Pass Fail Criteria button opens the Pass Fail Criteria window See Pass and Fail Limits page 8 11 Receiver Indicators Level Indica
104. le Instruments SRL lo Singing Return Loss low SRL hi Singing Return Loss high S TD Signal to Noise and Total Distortion synchronous Synchronized Occurring at the same rate or period sharing common timing with an outside timing source TCP Transmission Control Protocol T1 See DSI TDR Time Domain Reflectometer timing See clock Gloss 4 TIMS Transmission Impairment Measurement Set TLP Transmission Level Point TTL Transistor to transistor logic A standard transmission level with a logic low of 0 volts and a logic high of 5 volts TX Transmit An output signal or port uplink The ADSL circuit path used to transmit data from the subscriber ATU R to the central office ATU C upstream See uplink V Volt Vae Volt alternating current Vde Volt direct current VF Voice frequency V pk Volt peak V p p Volt peak to peak xDSL x type digital subscriber line Refers to a group of DSL sevices for example ADSL HDSL etc 23 tone screen 9 6 test 3 9 A ADSL 5 12 Gloss 1 impedance setting 2 8 Agilent Technologies call center 800 452 4844 W 4 limited warranty W 2 AMI Gloss 1 ANSI Gloss 1 asynchronous Gloss 1 attenuation 3 2 9 4 Gloss 1 distortion 3 9 3 11 reference level 9 3 attenuation and GDD screen 9 11 test 3 17 auto test sequences creating 8 18 editing 8 17 replacing 8 18 running 2 17 screen 8 15 B band button PSD screen 12 2 ba
105. let and information on ordering accessories Manual Conventions Note Contains important information Caution Contains information about situations that could damage equipment or lose data Warning Contains information about conditions that might cause personal injury About this Version About this Version Applicability This version of the Agilent Technologies N1626A Service Advisor xDSL TIMS Test Module User s Manual ITU T Version applies to the N1610A or N1610B Tablet running operating system software version 1 4 or later and a N1626A TIMS Module running software version 1 5 or later Note that some systems running earlier software may not provide all of the features described in this manual and that systems running later versions of software may operate differently than described in this manual Be sure to refer to any user s manual supplements or release notes that came with the unit or call Agilent Customer Care at 1 877 878 8018 Service Advisor xDSL TIMS Test Module User s Manual printing history Version Release date Notes 1 0 March 1999 Initial Release 2 0 September 1999 3 0 February 2001 4 0 May 2001 Updated to reflect software version 1 50 Check the Software Version You can check the software version number by tapping the Help button on the control screens or the Tablet Control tab of the Service Advisor Manager Contents Declaration of Conformity iv About this Book
106. lse noise wide band 10 8 load coil detection 11 8 noise test 10 3 noise with holding tone 10 4 power spectral density PSD 12 2 single frequency level amp attenuation single FLA 9 2 to 9 3 swept frequency level amp attenuation Swept FLA 12 4 to 12 6 TIMS tests 23 tone 3 9 attenuation amp GDD 3 17 configuring 2 9 to 2 10 connecting signal 2 2 cross talk NEXT FEXT 3 5 de voltage 5 10 duration 2 10 intermodulation distortion IMD 3 13 load coil detection 5 12 loopback mode 8 8 noise 4 2 4 5 4 7 noise balance 4 13 power spectral density PSD 2 16 6 2 quiet termination mode 8 9 test loop 430 Ohm 5 14 TX RX setup 2 7 8 7 viewing test results 2 11 8 12 TIMS user interface closing 1 8 navigating 1 7 starting 1 6 tolerance masks 9 12 toolbar 8 3 transmit signal see TX signal l 6 transmitter configuring 2 7 2 9 8 7 TX Gloss 4 TX RX indicators 1 3 mode button 8 7 setup 2 7 8 7 TX signal configuring 2 9 impedance 8 7 termination mode 8 7 U upgrading TIMS software 1 11 user interface tablet shutting down 1 8 starting 1 5 user interface TIMS closing 1 8 navigating 1 7 starting 1 6 V VF Gloss 4 viewing test results 2 11 8 12 voltage dc 11 7 W warranty W 2 X xDSL Gloss 4 Manual Part Number N1626 90000 Version 4 0 Printed in USA May 2001 od B Agilent Technologies
107. n the Receiver window 3 Tap Start at the top of the screen and observe the Receiver window for test results To determine the nature of interference compare the results to spectrum masks Performing TIMS Advanced Tests Swept FLA Test Swept FLA Test This test requires two testers one must be configured in transmit mode and the other in receive mode Loopback testing is not supported Swept FLA Test Configurations TIMS TIMS TX mode End to end test RX mode TX RX In the Swept FLA test a TIMS transmits a test signal at one end of a line Another TIMS at the other end of the line receives the signal Both testers are programmed with the same start and stop frequencies that serve as limits for the stepped frequency sweep As the transmitting tester performs its stepped frequency sweep the receiving tester monitors the incoming test signals and plots the signal levels versus frequency on the tester s display For more information on the Swept FLA Test screen see page 12 4 Setting Up a Swept FLA Test Transmitting TIMS Setup 1 Connect the transmitter port of the tester to the twisted pair being tested 2 Tap Select Test The Select a Test window opens 3 Under the Advanced tab tap Swept FLA 6 5 Performing TIMS Advanced Tests The Swept Frequency Level amp Attenuation Test screen opens N1626A TIMS Swept IG Level amp Attenuation Test a8 E File Measuremeni Ie ud Tels
108. nal to total distortion 3 7 9 5 test loop current 11 9 modes bridge 8 7 loopback and quiet termination 8 8 test setup 8 5 TX RX signal termination 8 7 modules installing 1 4 ms Gloss 3 Index N NEXT Gloss 3 measurements 3 5 3 6 noise measurements 10 3 screen 10 3 signal to noise ratio 9 7 signal to total distortion 9 5 test 4 2 4 3 4 5 4 7 noise balance screen 10 9 test 4 13 noise with holding tone screen 10 4 test 4 5 notch filter Gloss 3 NTG Gloss 3 NWT Gloss 3 O operatorID 14 8 P P1 P2 connectors and indicators 1 3 pass and faillimits saving 2 6 phase and amplitude hits amp interruptions Screen 9 14 test 3 19 phase jitter screen 9 9 test 3 14 PI Gloss 3 POTS Gloss 4 impedance setting 2 8 power spectral density PSD screen 12 2 test 2 16 6 2 4 printing reports 8 3 14 5 screen 8 3 14 4 PSD Gloss 4 Q quiet termination mode 8 9 R ratios signal to noise 9 7 signal to total distortion 9 5 receiver configuring 2 7 8 7 display 8 12 reference level attenuation 9 3 12 5 reloading TIMS software 1 11 report deleting 14 15 filenames 14 10 header information 14 7 printing 8 3 saving 14 9 report printing 14 5 restore default settings 8 3 results viewing 8 12 Reverse button TX RX setup 8 7 RX Gloss 4 signal noise 10 3 10 4 RX signal impedance 8 7 termination mode 8 7 S S TD Gloss 4 screen 9 5 test 3 7 save configurat
109. nce to test live ADSL circuits The table below lists typical line impedances however your test may require different settings Interface Impedance Settings for Service Testing Service Impedance Setting ADSL 100 Ohms HDSL 135 Ohms ISDN 135 Ohms POTS 600 900 Ohms Speaker Controls Speaker Control _ Mute Plus and Minus The speaker plus and minus buttons increase or decrease the Tablet s speaker volume Mute Turns the speaker off A checkmark appears in the Mute button when the speaker is off Using the TIMS Module Setting Up a TIMS Test Configuring Special Test Modes and Options Use the test feature controls on the right side of the screen to select tests and special configuration options Select Test Opens the Select a Test menu to select a new test see page 2 3 Test Modes Opens the Select a Test Mode menu to configure the Operation TIMS tester for specialized modes like loopback and quiet termination Test Mode Ez Filters Opens the Select Filters menu to select a weighting filter for the test Filters Pass Fail Criteria Opens the Pass Fail Criteria menu to change the D pass and fail limits for the test see Setting Pass and Fail Limits criteria page 2 3 Setting Up the Transmit Signal for Individual Tests Use the Transmitter controls at the bottom of the screen to configure the TIMS transmitter output signal for the test if necessa
110. nd Level buttons to configure the signal 6 Tap Start at the top of the screen to start the test and observe the Receiver display for test results You can use the Attenuation Reference Level button to change the reference level for the test Far End Cross Talk FEXT The far end cross talk FEXT test requires two TIMS testers one at each end of the twisted pair lines One tester transmits a signal on a twisted pair and the other tester receives at the far end of another twisted pair NEAR FEXT Measurement FAR TIMS TIMS TX RX mode TX Quiet RX mode gt lt Termination FEXT X E Dae gt e RX RX Transmit signal Measure signal on another on one twisted pair pair in same binder group 1 Connect two testers to the lines see the preceding figure 2 Tap Select Test 9 Under the Transmission tab tap Single Frequency Level and Attenuation 4 Configure each tester using the TX RX setup controls on the left side of the screen see Setting Up the Transmitter and Receiver TX RX Setup page 2 7 5 Use the Transmitter Frequency and Level buttons to configure the transmit signal of the near end tester 6 Onthereceiving tester select Unknown for Attenuation Reference Level 7 Tap Start at the top of the screen on both testers 8 Observe the Receiver display for test results 3 6 Performing TIMS Transmission Tests Signal to Total Distortion S TD Test Signal to Total Distort
111. ndwidth Gloss 1 bridged tap Gloss 1 bridge mode 8 7 butt set using with TIMS 2 12 Index C calibration and service W 5 call center W 4 capacitance and loop length calculation screen 11 6 test 5 8 capacitance measurement 5 8 CCITT Gloss 1 circuit ID 14 8 CO Gloss 1 comments 14 8 complex impedance screen 11 2 test 5 2 configuration saving 8 3 configuring attenuation reference level 9 3 12 5 TIMS tests 2 9 to 2 10 transmitter and receiver 2 7 8 7 TX signal connection to subscriberline 2 2 connectors craft test and handset 1 3 ground lug 1 3 TIMS module 1 3 conventions manual v craft test connector 1 3 cross talk NEXT FEXT tests 3 5 current test loop 5 14 11 9 cursor button 9 8 9 13 customer name 14 8 Index D dB Gloss 1 dBdsx Gloss 1 dBm Gloss 1 dBrnC Gloss 1 DCE Gloss 1 dc voltage screen 11 7 test 5 10 declaration of conformity iv default limits changing 2 6 default settings restore 8 3 dial string entering and sending 7 2 recalling and sending 7 5 storing 7 4 digital multimeter screen 11 7 test 5 10 disturber masks 9 12 DTMF dGloss 2 duration setting test 2 10 E EDD Gloss 2 EPD Gloss 2 EPL Gloss 2 ERL Gloss 2 errors indicator 1 3 ESD Gloss 2 eventlog saving 14 9 F FEXT Gloss 2 measurements 3 5 3 6 file menu 8 3 filters selecting 8 10 FLA Gloss 2 frequency measurements 3 2 RX signal 9 4 fuses changing TIMS 1 10
112. ne Error indicator Lights when an error occurs when the test s pass fail limits are exceeded see page 2 3 Error history indicator Lights and remains lit when an error occurs during a test Selecting a new test or restarting a test turns the indicator off Getting Started Using the Agilent Service Advisor Tablet Using the Agilent Service Advisor Tablet This section provides information about using the Service Advisor tablet with the TIMS module Installing Modules Follow these steps to install the TIMS module in the tablet 1 Open both module bay doors on top of the tablet and align the TIMS module with the bays 2 Slidethe module all the way into both bays until it seats firmly and turn the locking tabs to lock the module in place Module bay doors Module lock tabs on either side Power button 18 Vdc jack under door Getting Started Using the Agilent Service Advisor Tablet Switching the Tablet and User Interface On To turn on the tablet and start the user interface 1 To use external power connect the tablet s 18 Vdc jack to an N1612A ac adapter or an N1614A 12 Vdc vehicle power adapter If no external power source is connected the tablet s battery provides power 2 Tap the power switch on top of the tablet The power indicator on the front panel lights After a short startup routine the tablet launches the Service Advisor Utilities Manage
113. ng entry field of the Dial Monitor Test screen The displayed string can be edited using the dial string editing buttons discussed above If no string is displayed in the entry field the selected SN location is empty DT 253 563 B Clear Insert gt MI Before Delete An Insert Digits Insert Action Load Sequence Save Sequence 13 4 Signaling Screen Reference Dial Monitor Controls Save Sequence The Save Sequence button opens the Save Current Sequence window This display lets you select a stored dial string to send over the line Tapping the Start button sends the selected dial string out the selected TIMS Module port Empty SN positions are labeled None For more information about saving dial strings see Storing a Dial String page 7 4 Save Current Sequence Select Stored Number OK Cancel 13 5 Signaling Screen Reference 13 6 14 Connecting Printers 14 2 Printing a Screen 14 4 Printing a Report 14 5 Entering Test Header Information 14 7 Saving a Report 14 9 Viewing and Printing Saved Reports 14 12 Changing Default File Names 14 14 Deleting Saved Files 14 15 Printing and Reports 14 1 Printing and Reports Connecting Printers Connecting Printers The Agilent Service Advisors are compatible with HP Deskjet printers Caution If no printer is connected sending the Print command freezes the Service
114. ng one tester transmitting on P1 and receiving on P2 or with two testers one transmitting to the other When using a loopback test configuration use a known good line for the loopback to avoid misleading results Phase Hit Gain Hit or Dropout Test Configuration TIMS UMS TX mode RX mode gt o a TX RA TIMS TX RX mode ry RX Far end gt lt d d Loopback or 3 gt lt TIMS in RX TX loopback mode To test the signal for phase and amplitude hits and interruptions complete the following procedure 1 Connect the TIMS tester to the line see the preceding figure 2 Tap Select Test 9 Under the Transmission tab tap Phase Hits Amplitude Hits and Interruptions Perfo Phas 3 20 rming TIMS Transmission Tests e and Amplitude Hits amp Interruptions Test The Phase and Amplitude Hits amp Interruptions screen opens N1626A TIMS Phase and Hits amp o E 61 Bridge Hold Filters TX Setup x Setup EZEI ln SDeg 2d oa E a 60 Threshold Threshold Threshold Criteria a Mode mm ri Fim 4 Control Transmitter lt P 1 Level dBm If of2 o All 1 3 0 stat _N1610A Service Ad unan N1626A TIMS 8 5 7 44 am Configure each tester using the TX RX setup controls on the left side of the display See Setting Up the Transmitter and Recei
115. nge and Application for TIMS Filters TIMS Filter 3 dB Frequency Range Application Psophometric 700 Hz 3400 Hz Voice Channel 300 Hz 3400 Hz Modem 275 3250 Hz flat 275 Hz 3250 Hz Impulse noise 750 2300 Hz flat 750 2300 Hz Impulse noise E 1 kHz 50 kHz ISDN F 5 kHz 245 kHz HDSL G 20 kHz 1100 kHz ADSL Noise Indicator The indicator displays the noise level in dBm and a bar graph showing the noise level in a 80 to 10 dBm range Receiver lt P2 gt i When the receiver displays gt gt gt the noise level is greater than 10 dBm When the receiver displays lt lt lt the noise level is less than 80 dBm 10 3 TIMS Noise Test Screens Reference Noise with Holding Tone Test Screen Noise with Holding Tone Test Screen This screen controls a test that measures noise and distortion on the line including quantizing distortion from voice activated devices switched on by a holding tone on the line The receiver s notch filter removes the holding tone from the signal so only noise and distortion are measured IN1626A TIMS Noise with Tone Test f o0 00 11 00 11 a o Ka File Measurement _Signaling Auto Test Telset T Receiver lt P2 gt 13 1 dBm 61 0 dBm 13 10 Test Mode Psopho 820 Notch Filters TX Setup RX Setup p Pass Fail 30 Criteria Mode Fells E TT lesser deus i str
116. ntinued Characteristic DTMF signaling TX function Specification Digits 0 9 A B C D Level Range 40 dBm to 5 dBm TX timing range 50 to 499 ms ON 50 to 500 ms off Store and auto dial up to nine phone numbers Connectors and Jacks Siemens jacks TIMS circuit connectors Banana jacks Butt set connection A amp B binding posts RS 232 connector Remote connection amp SCPI control 15 5 Specifications TIMS Test Specifications TIMS Test Specifications The following table presents the characteristics for TIMS tests and measurements TIMS Test and Measurement Characteristics Characteristic Specification SFLA Test Transmitter see page 15 3 Characteristics Receiver Characteristics see page 15 4 Swept FLA Transmitter see page 15 3 Characteristics 16 tones s up to 400 tones sweep in the 10 kHz band 1 tone s up to 100 tones sweep in the 10 kHz band Receiver Characteristics see page 15 4 Noise Test Accuracy 1dB Resolution 0 1 dB Detector type True RMS Filter ranges Filter Noise dBrn Psophometric 80 to 0 Channel 80 to 0 E filter 10 to 90 F filter 20 to 90 G filter 30 to 90 15 6 TIMS Test and Measurement Characteristics continued Specifications TIMS Test Specifications Characteristic Impulse Noise 3 Level Test Specification Threshold levels low middle high difference of 4 dB
117. ntrols Elapsed test time Title bar IN1626A TIMS Single Frequency Level amp Attenuation Test lt SFLA gt e Auto Test Toolbar Elapsed Test Time Shows the length of time the current test has been running Tapping the Start button resets the elapsed test time to 0 File Opens the File menu of TIMS control and file management functions Open Restores factory default settings Save Sets the current pass fail settings as defaults see Changing the Default Pass and Fail Limits page 2 6 Reports Prints reports on a printer connected to the Agilent Advisor s parallel port see Printing a Report page 14 5 Print Screen Prints the displayed screen on a printer connected to the Agilent Advisor s parallel port see Printing a Screen page 14 4 Setup Sets test duration see Setting Test Duration page 2 10 Exit Closes the TIMS interface and displays the Service Advisor Manager 8 3 TIMS Reference TIMS Screen Components Measurement Provides access to TIMS tests such as noise FLA load coil detection and power spectrum Signaling Opens screens for configuring the TIMS signal output See Chapter 13 Signaling Screen Reference Auto Test Opens the Auto Test screen for setting up and running preset groups of tests See Auto Test Sequences page 8 15 Telset Provides access to controls for performing dialing functions over the line see Telset Option page 8 19 Start Starts the
118. oses the interface and shuts down the Service Advisor Manager By default power is also switched off You can configure the Tablet to leave power on when you shut down Refer to the Service Advisor Portable Test Tablet User s Manual for information on changing the shut down options You can also shut down the interface and Service Advisor Manager software by pressing the power switch but Agilent recommends you use the shutdown option to avoid losing unsaved test data Getting Started The TIMS Screen at a Glance The TIMS Screen at a Glance All of the TIMS test screens contain similar features The Single FLA Test screen below is typical The Receiver section in the middle of the screen changes in response to which test is selected and other selections Controls that are grayed out are not available for the test selected See TIMS Screen Components page 8 2 for more detailed explanation of the test screens Test setup controls IN1626A TIMS Single Frequency Level amp Attenuation Test lt SFLA gt OA I EIL E File Measuremen Signaling Auto Test Telset Receiver P2 00 00 Toolbar Receiver display and P1 controls n 6 ali Frequency rx x a F Hz dBm dB Reverse lorm c Be D pid 10kHz lt Range 1 gt B Test Mode TXIRX setup controls s j o ESEDEUEZEEEN ES and indicators
119. ow without changing filter selection Select Filters ol C C E Psophometric Channel 275 3250 Hz 750 2300 Hz Psopho Cc C E ISDN F HDSL Filters c c Cc cC 820 Hz Notch 1020 Hz Notch 6 ADSL Snd Weight J 16 OK Cancel The Filters button is grayed out when no filters are available The following table describes TIMS filters N1626A TIMS Filters Filter Description Psophometric 700 Hz to 3400 Hz bandpass filter used in evaluating how annoying background noise is to the listener Channel 300 Hz to 3400 Hz bandpass filter used when measuring noise impulse noise or the strength of a data modem signal 2300 Hz flat 750 to 2300 Hz bandpass filter used to measure impulse noise 3250 Hz flat 275 Hz to 3250 Hz bandpass filter used to measure impulse noise 820 Hz notch Notch filter removes 820 Hz holding tone from the signal 1020 Hz notch Notch filter removes 1020 Hz holding tone from signal E 1kHz to 50 kHz bandpass filter for ISDN measurements F 5 kHz to 245 kHz bandpass filter for HDSL measurements G 20 kHz to 1100 kHz bandpass filter for ADSL measurements 7 Conforms to ITU Recommendation ITU T 0 41 Conforms to ITU Recommendation ITU T 0 71 8 10 TIMS Reference Pass and Fail Limits Pass and Fail Limits The Pass Fail Criteria button opens the Pass Fail Criteria screen for setting pass and fail limits for the current test This is use
120. pe Delay Distortion EDD tab presents a graph showing envelope delay y axis as a function of frequency x axis Receiver lt P2 gt Summary Tones EDD 10000 7500 5000 2500 1844 Hz t Qus 0 0 1000 2000 3000 4000 Frequency Hz Delay micro seconds Cursor Button Tapping the Cursor button displays a signal marker and tag containing information about the signal at each of the 23 data points in the test results Summary Tones amp 2 gt Cursor tag shows detailed information about the signal at this measurement point 20 0 1766 Hz 22 4 dBm Tone Leve dBm 0 1000 2000 3000 4000 Frequency Hz You can move the marker and tag to another data point Either e Usetheleft and right arrow buttons to move the marker to another data point Double clicking the left or right arrow button moves the marker to that end of the display Or e Touch a data point on the display 9 8 TIMS Transmission Test Screens Reference Phase Jitter Screen Phase Jitter Screen This screen controls a test that generates a 1004 Hz 13 dBm0 holding tone signal and measures phase jitter in the signal after it is passed through a twisted pair line The test conforms to ITU Recommendation ITU T 0 91 See Phase Jitter Test page 3 14 IN1626A TIMS Phase J
121. pecific legal rights and you might also have other rights that vary from country to country state to state or province to province 10 TO THE EXTENT ALLOWED BY LOCAL LAW THE REMEDIES IN THIS WARRANTY STATEMENT ARE YOUR SOLE AND EXCLUSIVE REMEDIES EXCEPT AS INDICATED ABOVE IN NO EVENT WILL AGILENT OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT SPECIAL INCIDENTAL CONSEQUENTIAL INCLUDING LOST PROFIT OR DATA OR OTHER DAMAGE WHETHER BASED IN CONTRACT TORT OR OTHERWISE Some countries states or provinces do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you THE WARRANTY TERMS CONTAINED IN THIS STATEMENT EXCEPT TO THE EXTENT LAWFULLY PERMITTED DO NOT EXCLUDE RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU Warranty Calibration and Service Support Support If you have a question or need help with your N1626A Service Advisor xDSL TIMS Test Module please refer to one of the following sources of assistance e Read this manual to see if the information you seek is here To help you locate information more quickly use the Index at the back of the manual and the Table of Contents at the front of the manual e Carefully check your test setup connections and power Be sure that the module is installed in the Service Advisor tablet properly e Referto the Ag
122. pens a keypad where you can define a reference level for the test The range for this level is from 60dBm to 13dBm Note The RX Level option can be used to capture a generated signal level for use as a reference in future tests TIMS Transmission Test Screens Reference Single Frequency Level and Attenuation Single FLA Screen Receiver Controls and Indicators Attenuation Reference Level This is usually the power level of the test signal at its source In loopback tests TX RX mode using one TIMS tester this level is automatically set to the TX signal level see page 9 3 The Attenuation Reference Level button opens a window with controls to set either a TX or a RX reference signal level for the test Expected Frequency Range In RX only mode this control sets the range of frequencies that the receiver measures as described in the table below Frequency Ranges Band Range Tolerance 10 kHz 50 Hz to 9999 Hz 14Hz 100 kHz 10 kHz to 99 99 kHz 10 Hz 2 MHz 100 kHz to 999 9 kHz 100 Hz 1 000 MHz to 2 000 MHz 1000 Hz Note If the receive signal frequency is outside the selected range frequency readings may not be accurate Level readings however are accurate as long as the receive frequency is lower than the high end of the selected range Note To determine the signal frequency run a power spectral density test see page 6 2 on the receive signal and use the cursor option to determine its approximate fr
123. platform you are using See Viewing and Printing Saved Reports page 14 12 for more information Tap the Close button on the N1626A TIMS Reports screen to return to the main TIMS tester screen 14 11 Printing and Reports Viewing and Printing Saved Reports Viewing and Printing Saved Reports You can print saved reports when you connect a printer to your Service Advisor Tablet or Advisor If you are controlling your tester remotely from a PC you can print reports on the printer connected to your PC or a network printer To print saved reports follow these steps 1 Open the File menu and tap Reports The TIMS Reports menu opens IN1626A TIMS Reports Create View jPrint Delete Information Default Names Close 2 Tap the View Print Delete button The Saved Reports window opens Saved Reports Select an Existing File Name Name Size Modified testi 1KB 30Aug2000 15 15 test2 1KB 30Aug2000 15 16 Look in N1626A TIMS 9 Tap the N1626A or the PC Card button depending on where you saved the desired report file 4 Use the Up and Down arrow buttons to highlight the name of the report you want to print or tap the report name 14 12 Printing and Reports Viewing and Printing Saved Reports 5 Tap the View button The report displays 23 TONE TEST N1526 TIMS SUMMARY REPORT ST Module Slot amp Date l Sep2000 Time 16 07 41 Elapsed Test
124. ppm gt 1MHz 1000 ppm TX level Range 40 to 13 dBm Resolution 0 1 dB Accuracy Frequency Accuracy 1000 Hz 0 to 19 dBm 0 1 dB all other 0 2 dB Distortion At least 40 dB below output level at 40 to 10 dBm Flatness 200 Hz to 15 kHz 0 1 dB all other frequencies 0 5 dB 15 3 Specifications N1626A TIMS Module Specifications TIMS Module Specifications continued Characteristic Receiver Characteristics Specification RX frequency Range 50 Hz to 2 MHz Resolution 4 digits Accuracy Freq Range Accuracy 50 Hz to 9999 Hz 1 Hz 10 kHz to 400 kHz 10 Hz 400 kHz to 1 MHz 100 ppm gt 1 MHz 1000 ppm RX level Range 60 to 13 dBm Resolution 0 1 dB Detector type Average RMS Accuracy Freq Range Accuracy 50 Hz to 200 Hz 0 5 dB 200 Hz to 15 kHz 0 2 dB 15 kHz to 2 MHz 0 5 dB 1002 Hz to 1020 Hz 0 1 dB 0 to 19 dBm Tone generator TX function 50 Hz to 2 MHz in 1 Hz increments Preset tones 300 Hz 820 Hz 2000 Hz 3000 Hz Holding tones TX function 820 and 1020 Hz Holding circuits Two each drawing 23 mA nominal de current Freq weighting filters RX function Psophometric 275 3250 Hz 750 2300 Hz channel 820 Hz notch 1020 Hz notch E F G Level ranges 15 4 Analog interface 50 dBm to 10 dBm Digital Interface 40 dBm to 3dBm Specifications N1626A TIMS Module Specifications TIMS Module Specifications co
125. r When operating using battery power if the battery charge is too low to run the tablet and TIMS module a warning message displays For more information on using the tablet refer to the Service Advisor Portable Test Tablet User s Manual 1 5 Getting Started The TIMS User Interface The TIMS User Interface Opening the TIMS User Interface When a Service Advisor detects a TIMS module in its bays it either launches the TIMS software automatically if AutoStart is enabled in the Service Advisor Manager s Setup screen or displays the Service Advisor Manager screen If the TIMS interface does not open automatically 1 On the Service Advisor Manager screen tap the Enable button The TIMS startup screen displays N1626A Transmission Impairment Measurement Set Version 1 50 Agilent Technologies Copyright 1998 2001 All rights reserved Auto Test Tests start 16104 Service aa 849 9 9 47 am 2 Torun Auto Test sequences tap Auto Test See Running Auto Test Sequences page 2 17 9 To configure tests modify Auto Test sequences or run an individual test tap Individual Tests See Setting Up a TIMS Test page 2 3 for information on configuring individual TIMS tests See Auto Test Sequences page 8 15 for information on creating and modifying Auto Test sequences See TIMS Tests and Measurements page 2 14 for descriptions of the TIMS tests Getting Started The TIMS User Interface
126. rally used to determine the longitudinal balance Level Sets the transmitter signal level between 10 and 10 dBm Receiver Indicators Balance Displays the line s longitudinal balance in dB 11 5 Loop Test Screens Reference Capacitance and Loop Length Calculation Screen Capacitance and Loop Length Calculation Screen This screen controls a test that measures loop capacitance The measured capacitance and the characteristic impedance of the twisted pair wire are used to calculate the length of the loop under test Use this test on twisted pair lines having these characteristics e Length between 1 km and 7 5 km e Capacitance between 50 nF and 400 nF IN1626A TIMS Capacitance and vi Length Calculation Test lt LLC gt L00 00 00 00 00 Ea o File IMeasurement Signaling Auto Test Receiver lt P1 gt KX o RX Rx O r T zz m amp II ES Operati oaeiae Test Mode aa ne Q Bridge Hold Filters 51 nF km 2 i Characteristic Capacitance E nF mi nF km TX RX Setup M E Criteria mcm PT ieee p Fine 6 Control E 4 jf stt _N16104 semkead wiezea ws 949 9 1102 am S Receiver Controls and Indicators nF mi Sets nanofarad per mile as the unit for the characteristic capacitance nF km Sets nanofarad per kilometer as the unit for the characteristic capacitance Characteristic Capacitan
127. ranty does not apply to defects resulting from a improper or inadequate maintenance or calibration b software interfacing parts or supplies not supplied by Agilent c unauthorized modification or misuse d operation outside of the published environmental specifications for the product or e improper site preparation or maintenance 6 Agilent warrants that the Agilent Product described above will be able to accurately process date data including but not limited to calculating comparing and sequencing from into and between the twentieth and twenty first centuries and the years 1999 and 2000 including leap year calculations when used in accordance with the Product documentation provided by Agilent including any instructions for installing patches or upgrades provided that all other products e g hardware software firmware used in combination with such Agilent Product s properly exchange date data with it If the Specifications require that specific Agilent Products must perform as a system in accordance with the foregoing W 2 Warranty Calibration and Service Agilent Technologies Limited Warranty Statement warranty then that warranty will apply to those Agilent Products as a system and Customer retains sole responsibility to ensure the Year 2000 readiness of its information technology and business environment The duration of this warranty extends through January 31 2001 To the extent permitted by local law thi
128. ria TX RX Mode Astat i610 service ad 16264 Tims 849 9 6 47 am A 3 Tap the Filters button and select the 275 3250 Hz or 750 2300 Hz filter 4 Tap the Set Low Threshold button to open the keypad and specify the low level threshold 5 Ifyou want the test to run for a specific length of time complete the Setting Test Duration procedure on page 2 10 6 Tap Start at the top of the screen to start the test and observe the Receiver window for test results Performing TIMS Noise Tests Impulse Noise Test Voice Band Impulse Noise at the Exchange To measure impulse noise at the exchange 1 Connect the tester to the exchange end of the line using the 275 3250 Hz or 750 2300 Hz filter 2 Complete the procedure beginning on page 4 8 Performing TIMS Noise Tests Impulse Noise with Holding Tone Test Impulse Noise with Holding Tone Test This test measures impulse noise on a line when a holding tone is present The test can be useful in measuring noise spikes generated by voice activated devices The Impulse Noise with Holding Tone test requires a TIMS tester at the receiving end of the line and a signal source such as another TIMS tester at the other end For more information on the Impulse Noise with Holding Tone Test screen see page 10 6 To measure impulse noise with a holding tone 1 4 10 Transmit a holding tone 820 or 1020 Hz at 12 dBm to turn
129. rnC Decibels relative to reference noise with C message weighting dc Direct current DCE Data circuit terminating equipment Equipment that provides the interface between a DTE device and a transmission circuit for example a modem decimal A base 10 numbering system in which the digits range from 0 to 9 Gloss 1 Glossary downlink The ADSL circuit path used to transmit data from the central office ATU C to the subscriber ATU R download Moving information from one location to another typically between two network nodes downstream See downlink DRS Digital reference signal DS1 Digital signal level 1 1 544 Mbps DTE Data terminal equipment Equipment that converts user information into data signals for transmission for example a PC DTMF Dual Tone MultiFrequency A dialing method that uses a unique two tone combination to represent each dialing digit Also called touch tone or push button dialing EDD Envelope delay distortion envelope A group of frequencies used to simulate a data signal EPD Echo Path Delay EPL Echo Path Loss ERL Echo Return Loss ESD Electrostatic discharge The discharge of static electricity which has the potential to damage electronic circuitry FEXT Far end cross talk Gloss 2 FLA Frequency Level and Attentuation FTP File Transfer Protocol gateway A device such as a router that serves as an entryway into a network GU
130. rns to the test control screen No closes the message box and returns to the Edit Sequence window without changing the test sequence The Select Test button also turns green when a test is selected in the Select a Test window To add more tests tap Select Test again 8 17 TIMS Reference Auto Test Sequences Insert Test After Opens the Select a Test window As with the Insert Test Before button tapping a test in the window opens the control screen for that test so you can configure it and changes the Telset and Start buttons at the top of the screen The Message and End Sequence buttons function as with Insert Test Before above Any test added will be after the highlighted test Delete Test Removes the selected test from the sequence Tapping Delete Test opens a message box asking you to confirm whether the test should be deleted Edit Test Opens the control screen for the selected test so you can configure it and changes the Telset and Start buttons at the top of the screen The Message and End Sequence buttons function as with Insert Test Before above Close Closes the Edit Sequence window without changing the test sequence Replace a Sequence The Program button opens the Select a Test window Tapping a test in the window opens the control screen for that test so you can configure it and changes the Telset and Start buttons at the top of the screen The Message and End Sequence buttons function as with Insert Test Be
131. rse Impedance 600 600 10 kHz lt Range 1 gt Expected Frequency Range DEO Expected Frequency Hod Filters TX Set RX Set TX Level Attenuation Reference Level py Do E Attenuation Pass Fail i TX RX Reference Level Criteria TX RX Mods TX RX Mode TE Mute 8 2 0 i E Frequency Controls stat N16104 Service Aa N1610A Service Ad NI610A Service Ac N1626A TIMS 2 43 9 12 34PM S Level Controls 9 2 TIMS Transmission Test Screens Reference Single Frequency Level and Attenuation Single FLA Screen Transmitter Controls For TX RX and TX only modes the Transmitter Frequency and Level controls define the transmit signal frequency and level Attenuation Reference Level The Attenuation Reference Level button opens the Reference Level menu shown below The buttons in the Reference Level menu set a reference level to which the receive signal is compared The difference between the reference level and the receive signal level is displayed in the Attenuation display of the Receiver window Oom TX Level RX Level User Specified None In Swept FLA tests turns off the attenuation reference level TX Level When running a loopback Single FLA test in TX RX mode sets the tester s TX signal level as the reference level RX Level In TX RX or RX only modes stores the current level of the RX signal as the reference level for later measurements User Specified O
132. ry See TX RX Setup Controls and Indicators page 8 6 and Transmitter Level Controls page 8 14 7 eE vel dam pe 8 2 0 3 1 3 o Note In some tests the test signal frequency and signal level are set automatically by the test software The control buttons are grayed out Using the TIMS Module Setting Up a TIMS Test Setting Test Duration Most tests normally run continuously until the Stop button is tapped but you can set a length of time for those test to run After the Start button is tapped the test runs for the specified time then stops Tapping Stop ends the test even if a specified time has not elapsed To set a duration for the test 1 Inthe File menu select Setup The TIMS Setup window opens Continuous Test Duration 2 Inthe TIMS Setup window tap Test Duration to open the Enter Value Keypad Enter Value 1 9999 Minutes 9999 Minutes ee HAAA 3 Tap the Clear button to clear the current setting and the number buttons to enter the desired time in minutes The value can be 1 to 9998 minutes Entering 9999 resets to continuous testing Entries consisting only of zeros trigger an eror message 4 Tap OKtoset the test duration to the entered number of minutes The Test Duration button displays the new time setting 1 Minutes Test Duration 2 10 Using the TIMS Module Viewing Test Results Viewing Test Results The Receiver area displ
133. s display In the 10 KHz band up to 400 sample points are plotted In the 100 kHz and 2 MHz bands the test plots up to 100 points IN1626A TIMS Swept E Level amp Attenuation Test 00 00 00 ES E amp bt Stop ey File IMeasuremen ee 2 Test Telset Start I Receiver P2 nO Ow NONE al r Rx Qm Attn Ref Level Cursor Reverse 0 0 Normal Operation impedence 15 0 Test Mode 5 3 gt 30 0 Bridge H Q told 7 45 0 TX Setup RX Setup ba 2500 5000 7500 10000 Pass Fail RX o Frequency Hz Criteria o Mode Fe Control 50Hz Ed bod Hz EU 00 kHz 13 0 dBm FEE 0 dBm Ed Start bod EU Frequency FEE start Ni6104 Service ad 16268 Tims 5549 9 ese am S 12 4 Advanced Test Screens Reference Swept FLA Screen Transmitter Controls TX RX Mode During end to end tests one TIMS tester is set to TX mode and the tester at the far end of the line is set to RX Mode Start Frequency Opens a keypad that sets the start frequency of the test signal s frequency sweep Stop Frequency Opens a keypad that sets the end frequency of the test signal s frequency sweep Level Opens a keypad that sets the transmitter signal level from 40dBm to 0 dBm 13 dBm is the default Receiver Controls and Indicators The Attn Ref Level button opens the Reference Level menu The buttons in the menu set a reference level to which th
134. s warranty applies only to branded Agilent Products and not to products manufactured by others that may be sold or distributed by Agilent The warranty in this paragraph 6 applies only to Agilent Products shipped after July 01 1998 The remedies applicable to this paragraph 6 are those provided in paragraphs 1 2 and 3 7 Products purchased from Agilent outside the U S will receive the standard warranty in the country of purchase If end user customer moves such Products to another country where Agilent has Support presence then end user customer will receive the destination country standard warranty 8 Products purchased in the U S based on the U S list prices will only receive standard warranty in the U S except for Products with a global warranty A global warranty means that the Product will include the destination country s standard warranty in any country where the Product is moved provided that Agilent has Support presence in that country 9 TO THE EXTENT ALLOWED BY LOCAL LAW THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE Some countries states or provinces do not allow limitations on the duration of an implied warranty so the above limitation or exclusion might not apply to you This warranty gives you s
135. signaling information use SF Skip to block those tones from being sent or the test may cause unintentional reactions SF Skip is an option in the Enter TX Frequency window displayed when you tap the Freq button at the bottom of the Single FLA Test screen 6 Use the Attenuation Reference Level button to select the reference level for the test 7 For an end to end test tap User Specified in the RX tester s Reference Level menu to set the reference level to the signal source s transmit level 8 For an end to end test when RX Only mode is selected use the RX tester s Expected Frequency Range to set the receive frequency range If the received signal frequency is not within the expected frequency range frequency readings may not be accurate See page 8 23 for descriptions of frequency ranges 3 3 Performing TIMS Transmission Tests Single Frequency Level and Attenuation Single FLA Test Note If you don t know the signal frequency run a power spectrum measurement on the received signal then use the cursor option to find its approximate frequency When you know the frequency select the correct range for the test 9 Tap Start at the top of the screen to start the test and observe the Receiver display for test results Receiver lt P2 gt Attenuation 1000 Hz Expected Frequency ange RX dBm Attenuation Reference Level EY o 73 3 4 Performing TIMS Transmission Tests
136. sor 40dB 41dB Tones Summary 48dB 50dB Performing TIMS Transmission Tests 23 Tone Test Displaying a Graph of the 23 Tone Test Results Use the Tones or EDD tabs in the 23 Tone Test screen to display graphs of test results See see page 3 12 for information about EDD To display a graph of the tone levels in the received signal 1 Inthe Receiver window of the RX tester tap the Tones tab to view a graph of the line s signal response to each of the 23 tones The Tone Level to Frequency graph displays Sole Summary Tones Tone Level dBm 1000 2000 3000 Frequency Hz 2 Tap the Cursor button to display a signal marker and information tag These show details for the test result data points Use the arrow buttons or touch a data point to move the marker Receiver P2 ED Summary Tones EDD 1297 Hz 13 1 dBi Cursor tag shows information about the signal at this measurement point Tone Level dBm 0 1000 2000 3000 4000 Frequency Hz 3 11 Performing TIMS Transmission Tests 23 Tone Test Envelope Delay EDD Measurement An EDD measurement determines the degree of phase non linearity on a line The TIMS tester calculates EDD by measuring the phase difference between each adjacent pair
137. st results Performing TIMS Noise Tests Noise Balance Test Noise Balance Test This test measures the metallic noise level power influence and noise balance in a twisted pair line The test s metallic or tip to ring noise measurement measures the total amount of noise on the line This noise includes power line noise background noise and tones weighted by the selected filter Power influence is 50 or 60 Hz ac interference that is induced in an unbalanced line by nearby power lines The noise balance measurement is the power influence minus metallic noise in dBrn Use this measurement to identify interference from sources other than power lines For more information on the Noise Balance Test screen see page 10 9 Note To obtain valid readings you must be testing a standard polyethylene cable PIC or PE cable that is between 3 000 and 20 000 feet long To run a Noise Balance Test 1 Ground the sleeve or shield of the test cable to an earth ground point Note The tester s ground lug is a safety ground only It is isolated from the test cable s shield by a 10 MQ resistor If the sleeve or shield of the test cable is not earth ground this measurement will be inaccurate 2 Tap Select Test at the right side of the screen 4 13 Performing TIMS Noise Tests Noise Balance Test 3 Under the Noise tab tap Noise Balance Test The Noise Balance Test window opens IN1626A TIMS Noise Balan
138. ster s P1 and P2 ports P1 indicators are in the left column and P2 indicators in the right Green Indicates that an item is selected Yellow Used only in bridge mode indicates that the selected line impedance value is not the actual impedance setting but is used only for computing measurements see Bridge on page 8 7 TIMS Reference TX RX Setup Controls and Indicators TX and RX Controls Reverse This button reverses the transmit TX and receive RX modes of the module s P1 P2 connectors RX Setup and TX Setup These buttons open the RX Setup and TX Setup windows to select the termination mode Bridge or Hold and impedance 100 135 150 600 900 or 1200 Ohms Receiver RX Port Setup tan mon Lj e Bridge sets the receiver to a high impedance state 40 kOhms for non intrusive testing on a live circuit The selected RX input impedance its indicator turns yellow is used for computing measurements Transmitter TX Port Setup Hold holds the line for dial and hold functions see Auto Test Sequences page 8 15 Toggling this control off so it is not checkmarked releases a hold on the line TX RX Mode This button allows you to select an operating mode Transmit and Receive Receive Only or Transmit Only TXIRX TX RX Mode Note The Speaker Control buttons are the only enabled buttons during a test TIMS Reference Test Modes
139. t 16104 Service Ad N16264 TMs eo 10 25 am S Transmitter Controls Frequency Selecting a notch filter automatically sets the TX signal frequency to the holding tone signal frequency of 820 or 1020 Hz The TX Frequency controls are disabled and grayed out Level Sets the transmit signal level The range can be set from 40 dBm to 0 dBm The default setting is 13 dBm Receiver Indicators Level The strength of the received signal in dBm Note The holding tone must be above 40 dBm to get an accurate noise measurement Noise The noise on the received signal including quantizing noise from voice activated devices in dBm 10 4 TIMS Noise Test Screens Reference Impulse Noise Test Voice Band Screen Impulse Noise Test Voice Band Screen This screen controls a test that measures impulse noise using voice frequency weighting filters 275 3250 Hz 750 2300 Hz The impulse noise counters register the number of times the noise signal level exceeds defined thresholds The test conforms to ITU T 0 71 IN1626A TIMS Impulse Noise Test sT Band 0 71 00 00 00 a8 eo Ea File Measuremeni Rm Auto Test Telset Start P1 P2 T0 ORX Rx r Reverse gt Normal Operation impedance Test Mode 275 3250 Bridge told Filters ay Pass Fail RX Only fo Criteria TX RX Mode Astat N16104 service ad 16264 Tims 849 9 6 47 am
140. t except the Service Advisor Manager On the Service Advisor Manager screen tap the Upgrade tab The Upgrade screen opens Tap the Upgrade button at the right side of the screen Insert the CD ROM in the CD drive of the PC The Download program launches In the Download window select N1626A Tap Download Follow the instructions presented by the Download program Getting Started Connecting to a Subscriber Line 2 2 Setting Up a TIMS Test 2 3 Viewing Test Results 2 11 Dial and Hold Functions Using a Butt Set 2 12 TIMS Tests and Measurements 2 14 Running Auto Test Sequences 2 17 Using the TIMS Module Using the TIMS Module Connecting to a Subscriber Line Connecting to a Subscriber Line Warning Potentially dangerous voltage may be present on the line Use extreme caution when connecting to the line See Electric Shock Hazard in the front of this manual Caution For battery operation connect the ground lug on the TIMS module chassis to earth ground Connecting the TIMS Module to the Subscriber Line To connect the TIMS module to a subscriber line install a test cable between the TIMS module P1 or P2 connector and the appropriate conductors of the line you plan to test Install a second cable if you plan a loopback test using two lines To perform the Noise Balance or Longitudinal Balance tests connect a 3 conductor test cable with a grounded shield to the TIMS module s P1 or P2 connectors and the subscriber
141. t gt in the Capacitance display means that the result was too high to measure in the Capacitance display means that the result was too low to measure 5 9 Performing TIMS Loop Tests Digital Multimeter Test Digital Multimeter Test The Digital Multimeter test measures dc voltage as much as 204 Vdc between A and B of the twisted pair Polarity is indicated as the voltage of A relative to B For more information on the DC Voltage Test screen see page 11 7 To run a Digital Multimeter test 1 Connect the tester to the line 2 Tap Select Test The Select a Test window opens 3 Under the Loop tab tap Digital Multimeter The Digital Multimeter Test window opens IN1626A TIMS Digital Multimeter Test lt DMM gt 00 00 00 Es o File Measuremen Signaling Auto Test 35 a Rx Qm Reverse Impedance o o Bridge Hold TX Setup RX Setup RX Only TX RX Mode r Speaker Control ded edd Filters Pass Fail Criteria Astart N1610A Service Ad J N1626A TIMS R83 11 23 am S Performing TIMS Loop Tests Digital Multimeter Test 4 Tap Start at the top of the screen to begin the test and observe the Receiver display for test results DC Voltage 0 0 V f 204 If dc voltage reads 0 there is no dc voltage on the line Make sure the line is connected to the battery at the exchang
142. t Screen Receiver Indicators Complex Impedance Indicators Magnitude Displays the magnitude and phase of the line impedance The magnitude value can range from 0 to 9 999 Ohms Phase Angle The sign of the phase angle is an indication of the inductive or capacitive nature of the impedance 0 to 90 degrees Return Loss Indicators 900 Ohms The return loss with a receiver reference impedance of 900 Ohms in series with a 2 16 pF capacitor 600 Ohms The return loss with a receiver reference impedance of 600 Ohms in series with a 2 16 pF capacitor 11 3 Loop Test Screens Reference SRL ERL Screen SRL ERL Screen This screen controls three automated frequency sweeps to measure singing return loss SRL and echo return loss ERL in upstream lines SRL is the weighted return loss measured in two frequency bands The screen displays 600 Ohm and 900 Ohm impedance results that permit return loss measurements for either line impedance IN1626A TIMS SRL and ERL Test e o File Measurement Signaling Auto Test KO a RKO tx Reverse Imped rage Test Mode o 9 iz Bridge told Filters TX RX Setup A 8 Pass Fail TX RX Criteria TX RX Mode r Speaker Control B strt _N1610A Service Ad 15254 TINS R83 10 26 am S 600 Ohms tab Displays test results for a 600 Ohm receiver input impedance with a series 2 16 pF capaci
143. t the type of report information you want to save Enter the desired file name or default file names for one or all reports then tap OK to save the file names and return to the TIMS Reports screen The system generates a unique default filename every time you access the Saved Reports screen This avoids overwriting existing saved reports On the TIMS Reports screen tap the Close button to return to the main TIMS test screen or tap the Create button to save the report see Saving a Report page 14 9 14 14 Printing and Reports Deleting Saved Files Deleting Saved Files 1 Open the File menu and tap Reports The TIMS Reports menu opens IN1626A TIMS Reports View jPrint Delete xl Header Al Information Default Names 2 Tap View Print Delete The Saved Reports window opens Saved Reports Select an Existing File Name Name Size Modified testi 1KB 30Aug2000 15 15 test2 1KB 30Aug2000 15 16 Look in H1626A TIMS 9 Tap the N1626A or the PC Card button depending on where you saved the file you want to delete 4 Use the up and down arrow buttons to highlight the name of the report you want to delete 5 Tapthe Delete button 14 15 Printing and Reports Deleting Saved Files The Delete confirmation message window opens Are you sure you want to delete this file 6 Tap Yes to delete the file or No to cancel 7 Tap the Close button on
144. tallic noise test see Noise Test Screen page 10 2 Noise with Holding Tone Calls a screen for running a noise with holding tone test see Noise with Holding Tone Test Screen page 10 4 Impulse Noise Voice Freq Band Calls a control screen for measuring impulse noise in the voice frequency band see Impulse Noise Test Voice Band Screen page 10 5 Impulse Noise with Holding Tone Calls a control screen for measuring impulse noise in the voice frequency band see Impulse Noise with Holding Tone Test Screen page 10 6 Impulse Noise Wide Band Calls a control screen for measuring wide band impulse noise see Impulse Noise Test Wide Band Screen page 10 8 Noise Balance Calls a control screen used for measuring metallic noise power influence and noise balance noise contributed by sources other than power lines see Noise Balance Test Screen page 10 9 8 21 TIMS Reference Select a Test Menu Loop Tab Transmission Complex j Capacitance and exa ell Impedance and Loop Length Raten ese Calculation Detection SRL amp ERL Digital Multimeter ZARRA Longitudinal Balance Noise Loop Advanced Cancel Calibrate Complex Impedance and Return Loss Calls a control screen used to measure complex impedance and return loss see Complex Impedance and Return Loss Test Screen page 11 2 SRL amp ERL Calls a control screen used for measuring singing return loss SR
145. tes the average signal power level of the holding tone at the module s receiver input This level is the reference level from which the amplitude jitter is calculated The level meter s range is from 60 to 13 dBm Phase Jitter displays the current phase jitter level Phase jitter is defined as a deviation in the zero crossings of a tone relative to their nominal crossings The term describes a signal with zero crossing points that jitters in time because of an ac component in the signal Phase jitter has little effect on voice transmission because the human ear is relatively insensitive to phase distortions However this form of jitter can affect voice band modems that use phase modulation In the phase jitter test a TIMS Module transmits a 1020 Hz tone at 13 dBm At the receiving end of the line a TIMS Module passes the incoming signal through a bandpass filter that limits the module s signal response The resulting signal is passed to the input of a phase detector The phase detector compares the instantaneous phase and average phase of the signal and generates an error signal representing their difference The components of the error signal between 20 and 300 Hz are measured digitized and displayed as the phase jitter reading The measurement range is from 0 to 30 as specified in ITU Recommendation ITU T 0 91 9 10 TIMS Transmission Test Screens Reference Attenuation amp Group Delay Distortion Screen Attenuation
146. the displayed screens until you return to the main TIMS Tester screen 14 16 15 N1626A TIMS Module Specifications 15 2 TIMS Test Specifications 15 6 TIMS Weighting Filters 15 10 Ordering Information 15 11 Specifications Specifications N1626A TIMS Module Specifications N1626A TIMS Module Specifications The following table lists the specifications of the N1626A TIMS Module TIMS Module Specifications Characteristic Specification Physical Characteristics Size WxHxD 7 8x9 0x2 6 inches 19 8 x 22 9 8 8 cm Weight 2 7 pounds 1 2 kg 8 1 pounds 3 65 kg with S A Tablet amp battery Temperature Operating 0 to 40 C 32 to 104 F Storage 20 to 60 C 4 to 140 F General Characteristics Power 10 5 watts provided by S A Tablet Vde Range 204 to 204 Vdc range tip to ring Max dc blocking 200 Vdc Impedance levels 100 120 135 150 600 900 ohms transmit and receive independently selectable Termination mode Bridge hold transmit and receive independently selectable 15 2 TIMS Module Specifications continued Specifications N1626A TIMS Module Specifications Characteristic Specification Transmitter Characteristics TX frequency Range 50 Hz to 2 MHz Skip Frequencies 2130 to 2430 Hz Resolution 4 digits Accuracy Range Accuracy 50 Hz to 9999 Hz 1 Hz 10 kHz to 400 kHz 10 Hz 400 kHz to 1 MHz 100
147. their respective owners ISO Certification Agilent Technologies Service Test Division STD is an International Standards Organization ISO 9001 registered company recognizing that the quality system operated by STD meets the requirements established in accordance with ISO 9001 STD manufactures test equipment in strict compliance with this quality system STD received ISO 9001 certification no 6969 from National Quality Assurance NQA on August 30 1995 m UR F2 IS09001 PECETERED COMPANY Certificate No 6969 Safety Notices Observe the following safety precautions whenever you operate the TIMS xDSL Test module Failure to comply with these and other specific warnings and cautions in this manual is a violation of Agilent Technologies safety standards of design manufacturing and intended use of the test module Agilent Technologies assumes no liability for the operator s failure to comply with these precautions Product Damage Danger Do not use this product if it shows visible damage fails to perform has been stored in unfavorable conditions or has been subject to severe transportation stresses Make the product inoperative and secure it against any unintended operation Contact your Agilent Technologies representative for assistance Explosion Hazard Danger Do not operate a Service Advisor tester in the presence of flammable gases or fumes Electric Shock Hazard
148. tor 900 Ohms tab Displays test results for a 900 Ohm receiver input impedance with a series 2 16 pF capacitor SRL Low The singing return loss SRL of the upstream line at the extreme low end of the voice band from 260 Hz to 500 Hz SRL High The singing return loss SRL in the upstream line at the extreme high end of the voice band from 2200 Hz to 3400 Hz ERL The echo return loss ERL in the upstream line This is the weighted return loss in the middle of the voice frequency band from 560 Hz to 1965 Hz Loop Test Screens Reference Longitudinal Balance Screen Longitudinal Balance Screen This screen controls a test that measures the longitudinal balance of a twisted pair This balance is defined as a ratio of the longitudinal voltage measured to ground to the metallic voltage and is expressed in dB IN1626A TIMS Longitudinal Balance Test 00 00 00 E t ue o B File Measurement Signaling Auto Test Telset Start Receiver P1 Pl P2 zO rx Balance Oe dB Reverse m Impedance Test Mode o 9 Bridge TX RX Setup ee T RX Mode TB E fofofo z 3 0 0 Astat Ni6108 Service ad Nis26aTIMS 2559 9 10 49 am S Pass Fail Criteria Transmitter Controls Frequency Sets the tester s transmitter to a frequency between 50 Hz and 200 kHz A a voice frequency test signal usually around 1 kHz is gene
149. tter Controls Frequency Selecting the S TD test automatically sets the signal frequency to the holding tone and notch filter frequency See Filters page 8 10 Level Sets the transmit signal level from 40 dBm to 13 dBm the default is 13 dBm See Transmitter Level Controls page 8 14 Receiver Indicators and Controls Level The strength in dBm of the received signal S TD The ratio of received signal power to signal distortion power expressed in dB The reading is weighted by the filter in use The notch filter is automatically selected TIMS Transmission Test Screens Reference 23 Tone Test Screen 23 Tone Test Screen This screen controls a 23 tone test that measures attenuation distortion envelope delay distortion EDD and intermodulation distortion IMD in the voice band See 23 Tone Test page 3 9 IN1626A TIMS 23 Tone Test 00 00 00 ELLA Z5 i File Measuremen Signaling Auto Test Telset Help PI Receiver lt P2 gt Summary Tones EDD Summary Tab Reverse Impedance 600 600 I s_3 Q Bridge D Q told TX Setup re 6 45 45 60 60 Filters Speaker Control Transmitter lt P1 gt ees Level dem Ev zaran ZHCNNNN N1626A TIMS 987 12 10PM T Transmitter Controls Frequency Selecting the 23 Tone test automatically configures the test frequencies t
150. utton opens the report screen below SWEPT FREQUENCY N1526A TIMS SUMMARY REPORT SWEPT TREQUENCY Module Slot amp Date ll pr2001 Time 10 16 94 Elapsed Test Time 00 00 00 27 Test Bratus STOPPED File Name A ode Normal Operation Ww X RX Mode RX Only Porel RX RX Setup 600 Ohms Bridge No Hold Wo Port2 TX TX Setup 600 Ohms Bridge No Hold Mo Start Frequency 620 Hs m stop Frequency 10 00 kHz 9 Tap the arrow buttons to view the report data then tap the Print button to print the report If you want to enter report header information such as a customer name and operator ID see Entering Test Header Information page 14 7 The report header information appears in the Test Information section of the report If you are controlling your tester remotely from a PC you see the typical Windows print screen appear when you tap the Print button 4 Select the desired printer and tap the Windows Print button to print the report See Viewing and Printing Saved Reports page 14 12 for more information 14 6 Printing and Reports Entering Test Header Information Entering Test Header Information The Test Information section on each report lists the operator name operator ID circuit ID and comments You can enter this information every time you run a test for a customer to keep track of each customer s test results To enter test information before saving or printing reports
151. v About this Version vi 1 Getting Started 1 1 The N1626A xDSL TIMS Module at a Glance 1 2 Using the Agilent Service Advisor Tablet 1 4 The TIMS User Interface 1 6 The TIMS Screen at a Glance 1 9 Changing Fuses on the TIMS Module 1 10 Upgrading and Reloading the TIMS Software 1 11 2 Using the TIMS Module 2 1 Connecting to a Subscriber Line 2 2 Setting Up a TIMS Test 2 3 Viewing Test Results 2 11 Dial and Hold Functions Using a Butt Set 2 12 TIMS Tests and Measurements 2 14 Running Auto Test Sequences 2 17 3 Performing TIMS Transmission Tests 3 1 Single Frequency Level and Attenuation Single FLA Test 3 2 Cross Talk NEXT FEXT Tests 3 5 Signal to Total Distortion S TD Test 3 7 23 Tone Test 3 9 Phase Jitter Test 3 14 Attenuation and Group Delay Distortion Test 3 17 Phase and Amplitude Hits amp Interruptions Test 3 19 4 Performing TIMS Noise Tests 4 1 Noise Measurements 4 2 Noise Test 4 3 Noise with Holding Tone Test 4 5 Impulse Noise Measurements 4 7 Impulse Noise Test Voice Band 4 8 Contents viii Impulse Noise with Holding Tone Test 4 10 Impulse Noise Test Wide Band 4 12 Noise Balance Test 4 13 Performing TIMS Loop Tests 5 1 Complex Impedance and Return Loss Test 5 2 SRL ERL Test 5 4 Longitudinal Balance Test 5 6 Capacitance and Loop Length Calculation Test 5 8 Digital Multimeter Test 5 10 Load Coil Detection Test 5 12 Test Loop 430 Ohm Test 5 14 Performing TIMS Advanced Tests 6 1 Power Spectral D
152. ver TX RX Setup page 2 7 On the TX tester use the Transmitter Level controls to set the level of the transmit signal On the TX tester tap Start at the top of the screen to begin the test On the RX tester tap Start at the top of the screen and observe the Level indicator for the signal level at the RX tester input Tap the Weighting button to choose a weighting filter Set the threshold levels for the type of hit or dropout being measured Pass and fail limits can be set for the test results using the Pass Fail Criteria button and controls See Pass and Fail Limits page 8 11 Noise Measurements 4 2 Noise Test 4 3 Noise with Holding Tone Test 4 5 Impulse Noise Measurements 4 7 Impulse Noise Test Voice Band 4 8 Impulse Noise with Holding Tone Test 4 10 Impulse Noise Test Wide Band 4 12 Noise Balance Test 4 13 Performing TIMS Noise Tests Performing TIMS Noise Tests Noise Measurements Noise Measurements Noise measurements determine the level of background noise and interference on the line Noise tests usually use a filter appropriate to the type of service The TIMS tester measures noise after filtering by the selected input filter The table below lists noise weighting filters and typical applications There are six noise tests e Noise Page 4 3 e Noise with Holding Tone Page 4 5 e Impulse Noise Voice Band Page 4 8 e Impulse Noise with Holding Tone Page 4 10 e Impulse Noise Wide Band

User`s Manual - Agilent Technologies

Contents

Download Pdf Manuals

Related Search

Related Contents