D-105 User Manual
Contents
1. Tone is applied to the pair on the TG and RG This tone is applied in a way that a user will not hear the tone if the pair does not have impairments o 2 Triplex tone is useful when the cable has a lot of bleed over between pairs The tone is applied TG RG and TR using a technique that significantly reduces signals on adjacent pairs o This mode allows tone to be sent TG or RG or TR This may be necessary to identify pairs with impairments that prevent the effective use of other modes The Fl key is used to change the applied tone in this mode e The TONE mode operates continuously Just move the clips to the next pair as needed e Press any key to exit the TONE function 16 5 CONFIRMING PAIR IDENTIFICATION The D 105 has a visual and audible indication when a short 1 placed on a pair The D 105 beeps when a short is detected on the pair The TR display briefly shows the word BUZZ and The TR display box has a black background This notification alerts the user that the pair has been identified In addition to the alerts provided at the D 105 the tone pattern is also changed to a double beep on the pair to alert the far end technician that the pair has been confirmed by the D 105 16 6 CONFIRMING PAIRS WITH IMPAIRMENTS Impairments on the pair may make confirming the pair identification difficult The D 105 monitors the TR in an attempt to see a short on the pair It also monitors the TG and RG for grounds This is2. screen press F2 key OHMS Press CLR key if necessary to return to the main screen Read the TR TG and RG measurements in OHMS This function will also show voltage TR TG RG if 2 5 VDC more is present on the pair with a black background It is not necessary to use the VOLTS feature before using the OHMS feature TR measurements indicate a SHORT TG or RG measurements indicate GROUND 1000 100 OHMS 1 00 1 000 5 gt MQ greater than 1 000 000 OHMS Press CLR or other function button to exit the OHMS function 11 CAPACITANCE MEASUREMENTS PAIR LENGTH BALANCE AND FAULTS The D 105 measures capacitance Tip to Ring Ring to Ground and Tip to Ground and displays the results on one screen The measurements are continuous allowing observation of changes in the pair capacitance over time The CAPMTR shows capacitive pair length in 100075 of feet The pair length is indicated Tip to Ring The Ring to Ground and Tip to Ground measurements are used to indicate an unbalanced pair This may be due to an open splice or bridge tap on one side of the pair The CAPMTR function reads distance up to 100KF Connect the green ground clip to the best ground available Connect the red pair test cord to the D 105 Connect the test clips to the pair to be tested From the main screen press key CAPMTR Press CLR key if necessary to return to the main screen Read the TR TG and RG measurem
3. AALogic D 105 USER MANUAL VERSION 1 0 3 Allied Analogic Inc 132 Redtail Ct Weatherford TX 76088 817 599 0272 WWW aalogic com Copyright 2015 All rights reserved ii D 105 User Manual 1 0 3 TABLE CONTENTS 1 Di POW CR ii Ground Connection 4 2 Water Damate 4 3 Noise and Leakage Measurements De Front E la do 6 E ead US id J Connonration O O OT TA NOP EG H TANM OUTE 2 7 3 SYS F3 Display and Tod BEKLTE nennen a a SRS 1 3 2 CONTRST nsiet ean E 1333 VOLUME Reading Meter Measurements eee 9 DC Voltage Measurement Working Pairs or Foreign eee eee 10 OHMS Measurement Grounds and Shorts sss sese eee eee 11 Capacitance Measurements Pair Length Balance and Faults 12 RES raso a CD a 12 1 OPN MTR Pair Fault Detection O E ce eee 12 2 Te L a Sc UA ER A oth 12 2 WEAR TTT D 105 User Manual 1 0 3 13 lt SCAN HT 9 13 1 9 1327 BALANCE ede Patel esa 10 I PREQ Frequency Dete
4. CAPACITANCE Unbalanced or less than 60 feet long e LOADS gt 0 LOADS e AUTO TR BALANCE Pair Unbalanced e Auto Noise Metallic gt 60dbm Power Influence gt 10dbm e Auto TDR Z FAULT Impedance fault detected e Auto Leakage Leakage lt 1OMQ e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press AUTO TEST key The screen will update as it progresses through the sequence of tests The test will stop if any of the above conditions are found and an error message is displayed in the bottom left corner of the screen e To test another pair move the clips to the next pair and press F3 RETEST e Press any other key to leave the AUTO TEST screen 15 SPL FUNC SPECIAL FUNCTIONS The special functions SPL FUNC include the TDR CKT ID and MONITOR functions To access SPL FUNC press the SPL FUNC key from any screen other than a TDR screen 15 1 TDR TIME DOMAIN REFLECTOMETER The TDR is used to locate cable faults by analysis of the impedance of the line The D 105 uses a STEP method for the 0 to 1 range and a PULSE method for all other ranges The STEP method provides better resolution for near faults This function requires the user to enter the velocity of propagation VOP The distance indication will be in error if this value is incorrect The VOP can be set using the CFG key refer to 7 1 abov
5. CHom 10 IE NERO TES 11 15 SPL PUNG Special ea as o Setas ads 11 15 1 TDR Time Domain Reflectometer sagas dass 11 15 2 e N TS E TS TTT 12 IER Le 51T 13 16 a 13 pg A Da Siga 13 o tors ns ca SD O datas 13 16 3 T R MET TG RG and TR Metallic sss sese 13 BG a N 13 16 5 Confirming Pair Identification 14 16 6 Confirming Pairs With Impairments 14 17 Talk Battery 15 9 ss sa bands sado aa as apagada 16 19 E lt se e e Te 8 17 ii D 105 User Manual 1 0 3 1 INTRODUCTION The AALogic D 105 digital test set offers features for Cable Transfers Restoration Troubleshooting and a variety of tests to help qualify pairs for DSL provisioning The D 105 main features include TDR Step or Pulse Tone Generator Z Stress DSL Balance Special Circuit ID Leakage Tests Frequency Scanning Automatic Digital Metering Load Coil Detection Automated Fault Testing Expanded Talk Battery Support 2 D 105 POWER The D 105 uses an internal rechargeable lithium ion battery This eliminates the need to replace batteries The D 105 can be operated indefinitely if connected to an AC power source using the included power supply NOTE The D 105 should not be used for leakage or noise measurements while the power supply is c
6. SL gt 5ADSL e Press any key to exit the CKT ID function 16 TONE The tone modes are used to identify pairs by the application of a 577 HZ to the pair The D 105 incorporates short detection to aid the users in verifying that the pair identified is the correct pair This capability speeds up the process of pair identification for both section and half tapped transfers The D 105 provides SIMPLEX TRIPLEX TG RG and TR METALLIC tone options 16 1 Fl SPLX Simplex mode is also called quiet tone Tone is applied to the pair on the TG and RG This tone is applied in a way that a user will not hear the tone if the pair does not have impairments 16 2 F2 TRIPLEX Triplex tone is useful when the cable has a lot of bleed over between pairs The tone is applied TG RG and TR using a technique that significantly reduces signals on adjacent pairs 16 3 T R MET TG RG AND TR METALLIC This mode allows tone to be sent TG or RG or TR This may be necessary to identify pairs with impairments that prevent the effective use of other modes The Fl key is used to change the applied tone in this mode 16 4 USING TONE e Connect the green ground clip to the best ground available D 105 User Manual 1 0 3 13 e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press TONE key e Select the tone mode o Fl SPLX Simplex mode is also called quiet tone
7. UTO TEST SPL FUNC TDR 8 x 4 75 x 5 25 4 5 pounds including cords Single Li ion 3200mAh 10 15 Hour operation time 2 3 Hour 20 to 50 C non condensing Frequency 577Hz Simplex Output 10 12Vpp TriPlex Output 20 24Vpp 10 35VDC 10mA current isolated Battery Load s 300Hz gt 7 5KHz Balance 10KHz gt 120KHz Frequency ADSL 30KHz gt 1 1MHz ADSL2 1MHz gt 2 2MHz VDSL 2MHz gt 3 1MHz VOLTS 0 250VDC 2 OHMS 1 gt 5K ohms 2 5K 100K ohms 5 100K gt 1M ohm 10 CAPACITANCE 05 60 Feet Reads OPEN 60 FT gt 25KFt 6 20FT Metallic 70dbm gt Odbm 246 Ground Power 70dbm gt 1046 446 Influence O ohms gt 20K 10 20K gt IMeg Ohm 0 005 Meg IMeg gt 100Meg Ohm 10 Battery Detection gt 2 1Vde Short Detection lt 1 Meg Ohm Length Error TR lt gt TG RG gt 5 Differential GND Error Open TG or RG Unbalance TG to RG gt 5 Load Detection gt 0 count for up to 5 loads 1 Impedance Z Stress gt 3 Unbalanced Noise TR Metallic gt 60dbm Noise PI Ground gt 10dbm TDR Z FAULT Impedance Error Leakage lt 100 Meg Ohms Step 50FT 1 1 2 10FT Pulse 250FT gt 4 3 2 40FT 250 58 6KFT 29 100 FT D 105 User Manual 1 0 3 17 CKT ID e HDSL T1 XDSL AUDIO HDSL T1 ADSL MONITOR CFG VoP Settings e Gauge Table for GEL PULP PIC 22 24 26 e Custom VoP value 18 D 105 User Manual 1 0 3 D 105 User Manual 1 0 3 19
8. and F3 keys to change the VOP value Press F2 SET e The D 105 returns to the main screen O Note For convenience the VOP configuration can be accessed by pressing the CFG key while using the TDR function Make and changes and press the F2 SET to return to the TDR 7 2 TM OUT F2 The D 105 has a power off timeout option This time out conserves battery power if the user does not press a key within the timeout period The timeout can be adjusted or turned off completely The default timeout is 30 minutes e From any screen press CFG key F2 TM OUT e Use the Fl and F3 keys to select 15 30 45 or OFF Values are in minutes e Press F2 to SET the value e The D 105 returns to the main screen 7 3 SYS DISPLAY AND VOLUME The display backlight and contrast can be adjusted for the best visibility in all lighting and temperature conditions The speaker volume can also be adjusted for noisy areas or when the sound would be undesirable e From any screen press CFG key F3 SYS Press the keys and follow the steps below 4 D 105 User Manual 1 0 3 7 3 1 BCKLTE BACKLIGHT Press BCKLTE Use the F1 and keys to adjust the backlight level The screen will adjust to the selected value Adjust the backlight for the best view Press F2 to SET the value The D 105 returns to the main screen CONTRST CONTRAST Press F2 CONTRST Use the F1 and keys to adjust the screen contr
9. ast The screen will adjust to the selected value Adjust the contrast for the best view Press F2 to SET the value The D 105 returns to the main screen VOLUME Press F3 VOLUME Use the F1 and keys to adjust the volume A key beep indicates the current volume level Adjust the setting for the desired volume Press F2 to SET the value The D 105 returns to the main screen 8 READING METER MEASUREMENTS The meter display is designed to show three measurements at the same time TR TG and RG Depending on the test or measurement mode selected each reading may be voltage resistance or capacitive length The picture below illustrates a typical meter display ren Meter D 105 User Manual 1 0 3 5 In the image above the Open Meter is displayed The TR measurement is 12 71KF This reading indicates the length of the pair There is a problem on the pair so the TR length may be incorrect The TG measurement is 69Q The measurement is shown on a black background to indicate a problem This is a resistance reading indicating a GROUND on the tip side of the pair The RG reading is 9 91KF This is length reading This reading may also be affected by the ground fault on the TG A small square is displayed at the upper left corner of the measurement window each time a measurement is updated see the TR window in the image Wait until this square is displayed for a window before taking a reading any tim
10. displayed Additional tests can be made by pressing the RETEST key e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press SCAN key Fl LOADS D 105 User Manual 1 0 3 9 e Allow the screen to update e Read the number of loads detected at the top of the screen The D 105 can detect up to five loads 1 load e To test another pair move the clips to the next pair and press F3 RETEST e Press any other key to leave the LOAD screen 13 2 BALANCE The BALANCE function sweeps the pair with an AC signal and measures the impedance TG and RG The signal should be the same if the pair is balanced The display shows the impedance measurement difference and indicates which side TG or RG has the higher impedance Local practices should be consulted to determine acceptable levels e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press SCAN key F2 BALANCE e Allow the screen to update The test will check to ensure a pair is connected and it does not have DC faults and then complete the scan e Analyze the displayed graph Ideally the graph will be a straight line at 0 Q e To test another pair move the clips to the next pair and press F3 RETEST e Press any other
11. e or by pressing the CFG key from the TDR screen D 105 User Manual 1 0 3 11 The measurements are continuous allowing of changes in the pair over time e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From the SPL FUNC screen press 1 TDR key e The TDR screen displays and prompts for a distance range Select the shortest range that includes the fault for the best resolution If the distance is unknown select the largest range F3 The D 105 automatically selects the mode e The result screen is a graph of the TDR response o The AMP amplitude can be adjusted to help identify cable faults by using the Fl AMP or a AMP keys o The distance can be read more accurately by pressing the F2 CURSOR key and then using Fl lt and F3 gt keys to position the cursor at the cable fault Press the F2 key again to exit the CURSOR mode o Changing Range The range can be changed by pressing the SPL FUNC key from any TDR screen The range will cycle for each press of the key The mode will also change to STEP for the shortest range and PULSE for other ranges o Changing the VOP Press the CFG key from the TDR display to change the VOP Press the F2 SET key after changing the VOP to return to the TDR e To test another pair move the clips to the next pair It is not necessa
12. e the cable clips are moved or a change in the pair is made It may take up to 6 seconds for all the measurements to be updated depending on the condition of the pair 9 DC VOLTAGE MEASUREMENT WORKING PAIRS OR FOREIGN BATTERY The D 105 measures DC voltage Tip to Ring Ring to Ground and Tip to Ground and displays the results on one screen The measurements are continuous allowing observation of changes in the pair voltage over time Connect the green ground clip to the best ground available Connect the red pair test cord to the D 105 Connect the test clips to the pair to be tested From the main screen press Fl key VOLTS Press CLR key if necessary to return to the main screen Read the TR TG and RG measurements in VOLTS Press CLR or other function button to exit the VOLTS function 10 OHMS MEASUREMENT GROUNDS AND SHORTS The D 105 measures OHMS resistance Tip to Ring Ring to Ground and Tip to Ground and displays the results on one screen The measurements are continuous allowing observation of changes in the pair resistance over time This also allows the user to see when a ground or short is cleared The OHMS function reads grounds and shorts up to 1 MQ For resistances greater than 1MQ use the leakage TEST Connect the green ground clip to the best ground available Connect the red pair test cord to the D 105 Connect the test clips to the pair to be tested D 105 User Manual 1 0 3 From the main
13. ents in DISTANCE KF This function will also show voltage or resistance TR TG and RG if present on the pair with a black background The voltage is displayed if it is greater than 2 5 VDC Resistance is displayed if it is less than 100KQ Itis not necessary to use the VOLTS or OHMS features before using the CAPMTR feature TR measurements indicate the distance of the pair including bridge tap if present TG or RG measurements should be close to each other if the pair is balanced Large differences between the TG and RG indicate an unbalanced condition Press CLR or other function button to exit the CAPMTR function D 105 User Manual 1 0 3 12 TEST The TEST functions allow the user to look at typical DC faults on a pair measure metallic and power influence noise and check for leakage These diagnostic tests rapidly identify a majority of the typical pair faults From any screen press the TEST key 12 1 MTR PAIR FAULT DETECTION The test function examines the pair for DC voltage resistance faults and capacitive condition of the pair on a single continuously updated screen The test automatically checks for voltage then resistance and finally capacitance between the TR TG and RG The following conditions may be detected e Working Battery On Pairs e Poor Grounding TG and RG e Special Circuits applied voltage capacitance varies from the TR e Shorts capacitance e Grounds e Bridge Tap or Drop Wi
14. eveals problems in pair insulation also known as high resistive faults These faults can also result problems such as noisy pairs crosstalk low data rates foreign battery The meter can read a maximum of 100 Local practices should be consulted to determine acceptable leakage levels e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e Fromany screen press TEST key F3 LEAKAGE e Allow the screen to update The initial measurement will be TR e Read the displayed conditions for TR metallic and GND Leakage TG can be selected by pressing F2 and RG measurement by pressing F3 e The meter continues to update the reading Any changes in the pair will be displayed the next time the reading is updated 13 SCAN Scan features test the pair for AC parameters including LOAD coils DSL Freq BALANCE and frequency signals for ADSL ADSL2 and XDSL These tests should be completed after testing to ensure there are no DC faults on the pair 13 1 LOADS The LOADS function sweeps the pair with an AC signal and determines if load coils are present on the pair The display shows the frequency response on the pair and displays the number of load coils detected at the end of the test The LOADS test makes a single pass and displays the results If the D 105 detects DC faults on the pair the test will be stopped and an error message is
15. id The cords are connected according to the labels on the front panel The cords are identified in the following table Item Number Function 1 Pair Test cord Used for all test connections to cable pairs Ground cord Connected to cable ground for all tests and measurements Speaker Outlet Keep this area clear for the best volume Talk Cord Only required when using the internal talk battery feature Power supply Used to charge the internal battery and operate the unit for long periods 7 CONFIGURATION CFG Some configuration options are available on the D 105 These options either adjust measurements or operating features of the D 105 To access the configurable options press the CFG key from any screen The configurable options are described below D 105 User Manual 1 0 3 3 Configuration settings are stored in the D 105 memory and it is not necessary to reset them each time the D 105 is turned on 7 1 VOP CFG F1 The VOP configuration option allows the user to set the velocity of propagation VOP for the time domain reflectometer TDR This 1 necessary to allow the TDR to determine the distance to the fault e From any screen press CFG key F1 VOP e Use the Fl and F3 keys to highlight the cable type and gauge e Press F2 to SET the value e Ifa different VOP value is needed select the CUSTOM option Highlight CUSTOM o Press F2 SET o Use the Fl
16. ir Turn the talk battery off by pressing the TALK key when the talk battery 1 not in use to conserve battery power The talk battery is automatically turned off when the D 105 is turned off D 105 User Manual 1 0 3 15 18 WARRANTY The D 105 is warranted against defects in materials and workmanship for period of one year from the date of purchase Contact your local sales representative or the manufacturer for a Return Authorization RA number and instructions on returning the product for service Products cannot be processed unless accompanied by an RA number The user is responsible for determining the applicability of the product for any application The manufacturer is not responsible for any damages direct or consequential resulting from the use of its products Users are required to follow all work safety procedures when using this product Damages due to impact battery failure flooding or normal wear are excluded The manufacturer will determine exclusively at its own discretion where repairs or replacement of the product is required for any warranty claim In no case will the liability of the manufacturer exceed the original purchase price of the product 16 D 105 User Manual 1 0 3 19 SPECIFICATIONS The following specifications are subject to change without notice Dimensions Weight Power Operating Temperature Tone Talk Battery Power SCAN Functions TEST Functions V Q C NOISE LEAKAGE A
17. key to leave the BALANCE screen 13 3 FREQ FREQUENCY DETECTION The FREQ function sweeps the pair and measures the AC signals within the selected frequency range This is used to observe the presence and possible impairment of signals on working data pairs e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press SCAN key F3 FREQ e Select one of the test modes Fl ADSL F2 DSL2 OR XDSL e Allow the screen to update e Analyze the displayed graph The line shows the signal level at the frequencies scanned Low signals and drop outs should be investigated further e Use the F2 CURSOR to read the frequency at any point on the line The Fl and F3 keys can then be used to move left or right Press F2 again to leave the CURSOR mode e To test another pair move the clips to the next pair and press F3 RETEST 10 D 105 User Manual 1 0 3 e To test another mode on the same pair press Fl to toggle ADSL gt ADSL2 gt XDSL The new test will start automatically e Press any other key to leave the BALANCE screen 14 AUTO TEST Auto Test incorporates several tests into a single step The test stops on the first condition that prevents following tests to be completed properly as follows Fail Criteria e DCV TR TG or RG Any battery gt 2 5VDC e OHMS Any short or ground less than 100KQ e
18. onnected The D 105 should be charged at least three hours prior to use on battery power for maximum operating time A battery charge indicator is displayed at the top left of all displays The D 105 should be charged soon when only one segment is displayed A green light is visible at the TALK connector on the bottom panel when the power supply is connected to the D 105 and a suitable AC power source A red light is visible while the D 105 is charging The red light will turn off when charging is complete 3 FRONT COVER The front cover of the D 105 can be removed for convenience e Retract the two spring loaded pins holding the lid to the case and remove the lid 4 CAUTIONS 4 1 GROUND CONNECTION For all tests and measurements a good cable ground is required The D 105 has a ground cable permanently attached The clip is a battery style clip with a green boot Position the D 105 in a location that allows the clip to attach firmly to the cable or frame ground as appropriate D 105 User Manual 1 0 3 1 The ground can be extended by using several cable pairs tied to good ground This should be considered only if the D 105 cannot be connected directly to the ground A GROUND STRAP CABLE SHEATH OR GROUND BAR MAY NOT BE PROPERLY CONNECTED TO GROUND THE FIRST TROUBLE SHOOTING STEP SHOULD ALWAYS BE CONFIRMING THAT THE TEST SET HAS A GOOD GROUND CONNECTION 4 2 WATER DAMAGE The D 105 case is not water proof and may be damaged if lef
19. res pair is e Vacant Pair Length longer than expected e Capacitive Balance TG is longer or e Splits TR capacitance is shorter than shorter than RG TG and TG e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press TEST key Fl OPN MTR e Allow the screen to update the TR TG and RG readings e Read the displayed conditions e The meter continues to update the readings Any changes in the pair will be displayed the next time the reading is updated All readings are updated each 5 seconds or less 12 2 NOISE Noise measurements are made TR and TR to ground GND The TR or metallic noise is an indication of imbalances in the pair The noise to GND is a result of poor cable grounding or bonding The meter measures to 70 dbm Local practices should be consulted to determine acceptable noise levels e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From any screen press TEST key F2 NOISE 8 D 105 User Manual 1 0 3 e Allow the screen to update the readings e Read the displayed conditions for TR metallic and GND e The meter continues to update the readings Any changes in the pair will be displayed the next time the reading is updated 12 3 LEAKAGE The leakage test r
20. ry to press a key e Press any key other than CFG or SPL FUNC to leave the TDR function 15 2 CKT ID CIRCUIT ID The CKT ID function identifies the presence of a working special circuit on the pair The test can identify HDSL T1 and XDSL circuits on the pair e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From the SPL FUNC screen press F2 CKT ID key e The test runs and displays one of the identifiable circuits or displays VACANT indicating it did not find a HDSL T1 and XDSL circuit on the pair e Press the RETEST key retest the same pair or move the clips to another pair and press e Press any key to exit the CKT ID function 12 D 105 User Manual 1 0 3 15 3 MONITOR The MONITOR Function allows the signals on the line to be heard through the speaker The modes include AUDIO and three special options for HDSL T1 and ADSL e Connect the green ground clip to the best ground available e Connect the red pair test cord to the D 105 e Connect the test clips to the pair to be tested e From the SPL FUNC screen press F3 MONITOR key e The audio from the pair if any is sent to the speaker The default mode is AUDIO The Fl and keys are used to decrease or increase the volume e Press the F2 key to change the mode The function cycles through the options from AUDIO gt HD
21. t in the rain or submerged in water 4 3 NOISE AND LEAKAGE MEASUREMENTS The D 105 should not be connected to the AC charger when Noise or Leakage measurements are being made The AC power noise can introduce errors into these measurements THE NOISE AND LEAKAGE TEST OPTIONS WILL BE HIDDEN WHEN THE TEST KEY IS PRESSED AND THE POWER SUPPLY IS CONNECTED 5 FRONT PANEL The front panel of the D 105 provides easy access to the test and measurement features The digital display provides prompts and measurement data The display is backlight and contrast adjustable to make it easy to read in a variety of lighting conditions Key Function PWR CLR Turns the power on and off and exiting menus and tests TEST Selects the open meter noise or leakage tests B D 105 User Manual 1 0 3 Key Function SCAN Selects the loads balance or frequency scans AUTO TEST Selects the automatic test CFG Allows setting the VOP TDR change the timeout TM OUT adjust the display and volume SYS SPL FUNC Selects the TDR Circuit ID or Monitor TONE Selects on of the tone modes SIMPLEX TRIPLEX or Tip Ring Metallic TALK Turns the talk battery feature ON and OFF requires the talk cord F1 F2 F3 Function keys change The function is shown on the display above the keys 6 CORD CONNECTIONS The bottom panel of the D 105 has the connections for the cords and the speaker output gr
22. useful when the pair has one side open or the pair is split Grounding one or both sides of the pair can also allow the D 105 to confirm the identification The D 105 may not be able to confirm the pair in all cases The display shows the DC voltage TR and the AC voltage TG and RG The user can use these readings to look for changes when the pair is shorted and or grounded in the same way analog meters have been used in the past NOTE Only ground can be used to confirm the identification when using TG or RG tone modes 14 D 105 User Manual 1 0 3 17 TALK BATTERY The D 105 includes an internal constant current talk battery source This talk battery 1 compatible with digital butt sets and adjusts the applied voltage to maintain a constant 10 mA current on the talk pair for long and short loops Connect the black talk cord to the D 105 From any screen press the TALK key The indicator appears in the upper right corner of the display The talk battery remains on until the D 105 is turned off Use TONE if needed to identify the talk pair between the two work locations Connect the talk pair clips to the pair At the D 105 end connect a headset or butt set the two clips on the talk cord near the D 105 These are located on the cord and are not the clips attached to the talk pair At the far end connect a headset or butt set to the talk pair The D 105 signals with three short beeps when the far end connects or disconnects on the pa
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