DigiSmart 4300-RT
Contents
1. Enter the desired digit sequence on the keypad Digits will be displayed and then transmitted in the selected dialing mode The dialing mode may be changed during a dialing sequence by operating the DIAL MODE button as part of the sequence So you may change from DTMF to Dial Pulse to MF in any combination during a dialing sequence Go On Hook when desired by momentarily pressing the HOOK button The word ON will then be displayed in the middle of the last line STORE amp FORWARD Step 4 Step 5 Note Enter the desired digit sequence on the keypad before going Off Hook Go Off Hook by pressing the HOOK button once Two seconds after the unit is placed inan Off Hook state the digit sequence entered in Step 4 above will be transmitted at the standard dialing rates see pages 28 29 18 DigiSmart 4300 RT User Manual LAST NUMBER REDIAL After entering the digits as described above under Manual Dial or Store amp Forward do the following Step 1 Go on hook by pressing the HOOK button and wait a moment for the central office to clear Step 2 Go off hook by pressing the HOOK button again The digit sequence will be redialed Press CLEAR prior to entering a new digit sequence PAUSE DURING MF DIALING At times it may be necessary to transmit more than one digit string e g DNIS ANI from the 4300 RT While MF digits are usually framed with the KP and ST tones some receiving equipment requires2. HOOK Selects the On Hook or Off Hook condition for POTS and E amp M lines Controls Loop Seizure DID CO calls and Reverse Battery used to answer DID PBX calls 11 DigiSmart 4300 RT User Manual KEYPAD Dialing sequences are entered via the 4x4 keypad The following digits are available in each Mode Dial Pulse 0 through 9 DTMF 0 9 A C D Multi Frequency MF coded as follows 0 9 numeric keys KP key displayed as KP ST key displayed as ST STP key displayed as S1 ST2P B key displayed as S2 ST3P C key displayed as S3 Pause D key displayed as P Call Progress tones coded as follows 1 Dial Tone 2 Reorder 3 Busy 4 Ringback 5 Recall Dial 6 Special Audible Ring 7 Intercept 8 Call Waiting 9 Busy Verification 0 Executive Override Confirmation 12 DigiSmart 4300 RT User Manual D Timing Analysis To analyze Wink timing parameters press the SCAN button after sending or receiving a Wink The 4300 will display the following values in milliseconds CO WS and EMO WS modes Pre Wink interval delay between loop closure and wink from PBX Wink duration length of Reverse Battery received from the PBX 3336 PRE WINK 121ms WINK 183ms PBX WS and EMT WS modes Post Wink interval delay between wink and first digit received from CO 774 digit analysis will appear on this line dBm and VDC will appear on this
3. adjusting the volume 6 0dBm 7 5VDC TONE NORMAL 25 DigiSmart 4300 RT User Manual IV WARRANTY AND REPAIR All DigiSmart products are warranted to be free from defects in materials and workmanship for a period of one year from date of purchase Nicollet Technologies will at its option repair or replace any unit that is found to be defective during this period free of charge Should the unit fail to operate properly at any time please contact the manufacturer for repair service Do not attempt to repair the DigiSmart yourself To obtain a Returned Material Authorization RMA number please call or write Nicollet Technologies Inc 7901 12th Avenue South Bloomington MN 55425 Tel 954 854 3336 Fax 954 854 5774 The DigiSmart Model 4300 RT will require calibration by factory trained technicians every two to three years of normal use This service restores the accuracy of the signal level and voltage measurements and is performed at a nominal charge The display window is clear plastic and may be cleaned with a soft cloth Avoid using glass cleaner or other solvents since this may fog the plastic If the window becomes soiled dampen the cloth with a mild soap solution and rub gently Then wipe clean with a cloth moistened with warm water Never immerse the unit in water since this will damage the components inside As with any piece of electronic equipment protect your DigiSmart from static freezing temper
4. line POST WINK 145ms 13 DigiSmart 4300 RT User Manual To analyze digits operate the SCAN button to move the cursor from left to right across the digits displayed on the first and second lines Timing analysis parameters will be shown on the second line of the display as you scan the top line or on the top line as you scan the second line Tone duration T and Interdigit duration I are displayed for DTMF and MF while the average Pulses per Second PPS percent Break and Interdigit duration I are displayed for each Dial Pulse digit Signal and voltage levels for each digit appear on the third line Dial Pulse Timing 8543336 10PPS 60 1 753 UNDERdbm 11 4VDC Pules per sec Percent Break _ Interdigit Period Signal Level Voltage Level DTMF MF Timing l 49ms 10 8VDC Tone Duration Interdigit Period Signal Level Voltage Level 14 DigiSmart 4300 RT User Manual E Hook Scan Clear Timing parameters can be analyzed any time after they occur just by pressing the SCAN button as described in the previous section After viewing the wink intervals or scanning the digits you must press CLEAR to prepare for the next call We have found that when using our 4000 series test sets it is good practice to release the call before doing timing analysis The following sequence of steps performed after each call is answered will eliminate confusion when doing repeated tests 1 press HOOK
5. 0 Rt must be Off Hook or in the answered reverse battery condition 20 DigiSmart 4300 RT User Manual D DID CO Simulation Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Turn the unit on Select the proper line impedance by toggling the TERM switch Note OPEN position disables tone dialing in Step 8 Select CO WS or CO IM trunk supervision by pressing the FUNC button Select DTMF Dial Pulse or MF by pressing the DIAL MODE button Enter the desired digit sequence on the keypad The digits will be displayed on the top line Close the loop by pressing the HOOK button once The word OFF will appear on the last line of the display The PBX will sense loop closure and will return a Wink if it is so configured In this case the word WINK will appear on the display The 4300 will transmit the digit sequence that was entered in Step 5 The PBX will accept the call by reversing battery if the digits are found to be valid Open the loop by pressing the HOOK button after the call is complete Press SCAN to view the Pre Wink interval and Wink duration Press CLEAR to prepare for the next call 21 DigiSmart 4300 RT User Manual E E amp M Terminate Mode Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Turn the unit on Select the proper line impedance by toggling the TERM switch Select EMT WS by pressing the FUNC butt
6. DigiSmart 4300 RT USERMANUAL Version 1 03 tm DigiSmart is a trademark of Nicollet Technologies Inc Copyright c 2004 NTI DRN 3407 3 04 DigiSmart 4300 RT User Manual Table of Contents I INTRODUCTION 3 II GENERAL OPERATION A Test Access 7 B Display Configuration 8 C Button Functions 8 D Timing Analysis 13 E Hook Scan Clear 15 F Open Termination 16 PROCEDURES A Monitoring Digits 17 Dialing Digits 17 C DID PBX Simulation 20 D DID CO Simulation 21 E E amp M Terminate 22 F E amp M Originate 23 G DID Bridge Mode 24 H Receiving Tones 25 IV WARRANTY amp REPAIR 26 V VITAL STATISTICS 27 APPENDIX Specifications 28 DigiSmart 4300 RT User Manual I INTRODUCTION The DigiSmart Model 4300 RT is a handheld test set for troubleshooting 2 wire E amp M POTS and DID circuits as well as measuring Voltage and Levels Ten years of service in telcos across North America have earned the DigiSmart 4000 series a reputation for simplicity versa tility and solid reliability This family of handheld test instruments now welcomes the Model 4300 RT which adds powerful new features to the suite of functions previously found only on the popular 4200 RT from Nicollet Technologies Transmit Receive MF DTMF and DP digits Emulate 2W E amp M POTS and DID signaling Measure Signal Level of tones including digits Display DC voltage level and battery polarity This new DigiSmart is much mo
7. EN center postion Butt set cannot be used in the E amp M modes 16 DigiSmart 4300 RT User Manual III TEST PROCEDURES A Monitoring Digits The 4300 defaults to the monitor mode when the Power Volume switch 1s first turned on In this mode the unit monitors DTMF digits across a high impedance connection to Tip and Ring If you are monitoring a wink start DID trunk use the DID BRidge mode as described on page 24 To properly display Dial Pulse or MF digits press the DIAL MODE button once or twice If a problem with Dial Pulse digits is encountered it may be necessary to set the voltage threshold This is done by pressing the DIAL MODE button until Hook Threshold appears Then press the CLEAR button when the line is idle B Dialing Digits Step 1 Step 2 Step 3 Note Turn on the unit by operating the Power Volume switch on the right side The default setting DTMF will appear at the bottom of the display Press the DIAL MODE button to select Dial Pulse or MF as described on page 9 Select the proper line impedance 600 2 or 9000 by toggling the TERM switch OPEN termination disables all tone dialing Continue with either the Manual Dial or Store amp Forward steps on the next page 17 DigiSmart 4300 RT User Manual MANUAL DIAL Step 4 Step 5 Note Step 6 Go off hook by pressing the HOOK button The word OFF will appear in the middle of the last line of the display
8. a short delay to prepare for the second set of digits In these cases use the D key in the lower right corner of the keypad to insert a Pause between the digit strings Each Pause represents a 250 msec delay and is shown by a P on the display Pause 250msec KP 54321STPKP952854333 6 ST UNDERdbm 8 5VDC MF EMO WS C DID PBX Simulation 19 DigiSmart 4300 RT User Manual Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Turn the unit on Select the proper line impedance by toggling the TERM switch Select PBX WS or PBX IM trunk supervision by pressing the FUNC button Select DTMF Dial Pulse or MF by pressing the DIAL MODE button When the unit detects loop closure from the CO it will wink back only if PBX WS was selected in Step 3 See DID Parameters on page 30 Digits received from the CO will be displayed To accept the call press the HOOK button The words REVERSE BATTERY will appear on the third line of the display Press the SCAN button to view the Post Wink interval and digit timing parameters To release the call press CLEAR a If the trunk is still seized you must wait until the trunk is released and then press CLEAR again to go on hook b If the CO has already released the trunk press the HOOK button to return to the idle loop condition If desired you may transmit 1004Hz DTMF MF of Call Progress tone in this function however the 430
9. atures and excessive heat 26 DigiSmart 4300 RT VITAL STATISTICS Brand Name Order Number Manufacturer Country of Manufacture Equipment Classification User Manual DigiSmart 4300 RT DS 4300 Nicollet Technologies Inc United States of America portable test instrument Common Language Equipment Coding number TEASAAJWAA Instrument DS 4300 Plastic Carrying Case Ibs Power Supply PS 4X00 Test Cord TR CORD User Manual UM 4300 E amp M Test Cord EM CORD Bar code 220360 8 1 H x 4 2 W x 2 9 D 2 0 Ibs 11 Hx 13 5 W x 4 4 D 4 0 wall plug in 8 foot cord 1 4 lbs 6 feet bantam plug 2 clips 8 5 H x 5 5 W 32 pages 6 feet modular plug 4 clips optional accessory Modular cords used to connect an E amp M trunk to the 4300 RT including the E amp M Test Cord listed above must conform to the pinouts shown n c M lead Tip Ring E lead n c below 6 blue 5 yellow 4 green 3 red 2 black 1 white RJ 11C plug ELI 27 DigiSmart 4300 RT User Manual APPENDIX Specifications for the DigiSmart 4300 RT 28
10. button to release the call 2 press SCAN to analyze digits and wink timing 3 press CLEAR to prepare for the next call It should be noted that signal and voltage levels are also recorded for each digit that is received by the 4300 When digits are scanned these parameters appear on the third line of the display The words OVER or UNDER will be used in place of a numeric value whenever the measurement is outside the ranges shown on pages 29 30 642 12PPS 64 1 557 UNDERdbm OVERVDC PULSE ON DID BR 15 DigiSmart 4300 RT User Manual F Open Termination When the TERM switch is in the center OPEN position all tone dialing functions are disabled and termination resistance is removed This mode allows a signal analyzer to be connected to the circuit through the 4300 for more extensive testing of noise level and frequency response dB measurements assume 60042 termination The 4300 will perform all the signaling required to establish an audio path across an E amp M POTS or DID circuit A pass through connection to the circuit will then be established as shown in the figure below A loss of approximately 0 5 dB can be expected in this setup which avoids double termination of the line DID POTS Analyzer or or E amp M butt set Modular Bantam DigiSmart 4300 RT CLTIJ8 move 49s fio Ppp SCAN PALE 1004HZ HOH 600 OPEN HOOK 900 ANSWER HOOK TERM Nicollet Technologies Inc OP
11. e unit is ready to send or receive DTMF digits 0 9 A B C D Depression 1 display reads PULSE The unit is ready to send or receive Dial Pulse digits through 9 Depression 2 display reads The unit is ready to send or receive MF digits 0 9 KP ST STP ST2P ST3P and Pause Depression 3 display reads CALL The unit is ready to transmit Call Progress sequences See page 29 for specifications Depression 4 display reads TONE The unit is ready to accurately measure the dB level of single frequency tones such as those commonly used for testing telephone circuits Depression 5 Press CLEAR to set hook Threshold or MODE to exit Sets the idle loop voltage threshold for monitoring Line status and Dial Pulse digits When working on a circuit that does not use 48VDC e g a 24 volt system press the CLEAR button when the line is idle to set the new voltage threshold Then press the DIAL MODE button until the proper mode is displayed DigiSmart 4300 RT User Manual FUNC tion Selects one of eight Supervision modes The current mode is shown in the lower right corner of the display Default mode display reads NORMAL The unit is set up to monitor or terminate a standard analog circuit POTS Depression 1 display reads PBX WS The unit is set up to operate as the Customer Premise PBX side of a Wink start DID trunk Depression 2 display reads PBX IM The unit is set up to operate as the Customer Pre
12. hone circuit may be accessed by using the cable supplied with the 4300 The bantam plug at one end of this cable fits into the jack on the top of the unit The other end features a pair of 5 way test clips which connect to tip and ring at the demarc point A modular cord can be used instead of this bantam test cord An RJ 11C jack is located on the top of the unit next to the bantam jack The inner pair of this jack provides a two wire connection to the telephone circuit being tested When testing 2W E amp M trunks four conductors of the modular jack are used A pinout diagram is shown at the bottom of page 26 The 4300 can monitor DID E amp M or other types of analog telephone circuits through a high impedance connection Two way traffic can be monitored and digits displayed while calls are in progress without interfering with signaling between the central office and the customer premise The 4300 supports two such monitor modes The default on power up is NORMAL mode On Hook which will display digits that pass back and forth across the circuit The other mode is called DID BRidge in which both digits and timing intervals are captured and displayed for wink start DID trunks In the active modes the 4300 acts as one end of a trunk to simulate the operation of switching equipment The 4300 performs loop seizure wink recognition and digit feed when it originates calls When it terminates a call it will perform wink back digit capt
13. mise PBX side of an Immediate start DID trunk Depression 3 display reads CO WS The unit is set up to operate as the Central Office side of a Wink start DID trunk DOD Depression 4 display reads CO IM The unit is set up to operate as the Central Office side of an Immediate start DID trunk DOD Depression 5 display reads EMT WS The unit is set up to operate as the Terminate end of a2 wire E amp M trunk Wink start Type I Depression 6 display reads EMO WS The unit is set up to operate as the Originate end of a2 wire E amp M trunk Wink start Type I Depression 7 display reads DID BR The unit is set up to Bridge monitor a DID trunk 10 DigiSmart 4300 RT User Manual CLEAR Clears digits from the top two lines of the display Should be pressed prior to sending or receiving the next dialing sequence Prepares the unit for the next call SCAN 1004Hz Moves the cursor from left to right to analyze individual digits that have been received Also displays the Wink timing intervals Pre Wink Post Wink Wink duration If held down for two seconds activates the 1004 Hz tone source After the SCAN button is pressed to analyze digits or wink timing you must press CLEAR to prepare for the next call TERM ination Selects 600Q or 900Q impedance or Open termination see page 16 Has no effect in the monitor modes since these are high impedance connections TERM is a three position rocker switch
14. on five times Select DTMF Dial Pulse or MF by pressing the DIAL MODE button After detecting seizure the 4300 will wait 100 msec before sending a 200 msec Wink signal Digits transmitted by the remote equipment will appear on the display If the line is dropped the word DISCONNECTED will appear Press the HOOK button to accept the call The word ANSWERED will be displayed Press HOOK to release the call Press SCAN to view the Post Wink interval Press CLEAR to prepare for the next call 22 DigiSmart 4300 RT User Manual F E amp M Originate Mode Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Turn the unit on Select the proper line impedance by toggling the TERM switch Note OPEN position disables tone dialing in Step 8 Select EMO WS by pressing the FUNC button six times Select DTMF or MF dialing mode by pressing the DIAL MODE button Pulse dialing is not available in E amp M Originate mode Enter the desired digit sequence on the keypad If the line is off hook the word BUSY will appear on the third line of the display Seize the trunk by pressing the HOOK button once The word OFF will appear on the last line of the display The remote equipment will return a Wink signal and the word WINK will appear on the display The 4300 will then transmit the digit sequence If the remote equipment accepts the call the word ANSWERED will be di
15. ower to the unit is supplied by a dual output wall mount transformer To use the 4300 plug the transformer into a standard 3 prong electrical outlet 115 VAC 60 Hz and connect the power cord to the jack on the left side of the unit The Power Volume control is on the right side of the unit Rotate this switch until it clicks ON Speaker volume can then be adjusted by rotating the control down or up until the desired amplitude is reached The model and version number will appear briefly on the top line of the display followed by the signal level dBm and voltage measurement DCV on the third line The bottom line will contain the three status words shown in the figure below UNDERdbm 47 5VDC DTMF NORMAL Signal Level Voltage Level Dial Mode On Off Hook Function The unit is now set to send receive DTMF digits is ON hook and is ready to operate in a NORMAL loop environment This power up default mode allows you to bridge a telephone line and display DTMF digits If you wish to display Dial Pulse or MF digits instead simply use the DIAL MODE button as described on page 9 DigiSmart 4300 RT User Manual SPEAKER MODULAR JACK BANTAM JACK POWER CONTROL CONNECTOR 4 LINE X 16 CHARLCD DigiSmart 4300 RT DIA MODE FUN Hugga CLEAR SCAN 1004HZ 600 OPEN HOOK 900 ANSWER TERM HOOK Nicollet Technologies Inc DigiSmart 4300 RT User Manual IL GENERAL OPERATION A Test Access The telep
16. re than just a digit display device The 4300 RT handles the signaling required to test either end of a DID or E amp M circuit including E 911 trunks at the PSAP Or monitor any analog line to display digits and timing intervals Here are a few of the other features that make it indispensable Bridge and Terminate modes Fixed frequency tone source Wink intervals and duration Timing analysis of each digit Wink or Immediate start DID Originate or Terminate E amp M Bantam and modular test jacks Speaker for audible monitoring 60002 900Q Open termination Wall plug in power supply DigiSmart 4300 RT User Manual The Model 4300 RT includes both a modular jack and a bantam jack for connection to the telephone circuit and other equip ment The bantam jack is a two conductor interface that accepts the standard test cord included with the 4300 Bantam cords can be used to test DID and POTS circuits The modular jack must be used to connect to E amp M trunks which require four conductors see page 26 for pinouts This jack may also be used to connect a butt set which will enable two way voice communication with the other end of the line RECEIVE DISPLAY IDIAL PULSE LINE INTERFACE MICRO BATTERY COMPUTER TRANSMIT The Model 4300 RT shares many operational characteristics with the 4200 RT Craftsmen who have used the older model should have little trouble learning how to use the 4300 RT DigiSmart 4300 RT User Manual P
17. splayed Press HOOK to release the call Press SCAN to view the Pre Wink interval and Wink duration Press CLEAR to prepare for the next call 23 DigiSmart 4300 RT User Manual G DID Bridge Mode Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Turn the unit on For accurate dB measurements select the proper line impedance by toggling the TERM switch Select DID BR by pressing the FUNC button seven times Select DTMF Dial Pulse or MF by pressing the DIAL MODE button If the voltage level is less than 40VDC the line may be busy If the line is idle reset the voltage threshold using DIAL MODE button page 9 Digits and signaling will be analyzed by the 4300 as they occur across the DID circuit Press the SCAN button to view the Wink timing intervals see figure below Press SCAN again to analyze each digit Press CLEAR to prepare for the next call WINK TIMING PRE WINK 186ms WINK 212ms POST WINK 158ms 24 DigiSmart 4300 RT User Manual H Receiving Tones Step 1 Step 2 Step 3 Step 4 Turn the unit on For accurate dB measurements select the proper line impedance by toggling the TERM switch Select TONE by pressing the DIAL MODE button Go Off Hook by depressing the HOOK button The unit is ready to receive tones The 4300 RT will not display the frequency but will display the dB level as the tone is received You also can hear the tone by
18. ure and battery reversal Battery is supplied as required by the protocol DigiSmart 4300 RT User Manual B Display Configuration The front panel of the 4300 contains a 4 line by 16 character Liquid Crystal Display LCD which will hold up to 32 digits on the first two lines Both received and transmitted digits are displayed NOTE Special MF tones are displayed as two characters see page 12 thus reducing display capacity to less than 32 digits The third line of the LCD is reserved for signal level voltage measurement and status indicator The current dialing and signaling modes are displayed on the bottom line KP54321STKP9528543336 ST 13 8dBm 12 5VDC MF PBX WS C Button Functions Below the LCD is a 4x4 keypad and six black buttons The keypad contains the ten numeric digits 0 through 9 and the DTMF A B C and D Smaller type above these six DTMF characters identifies the MF tones that are produced when these keys are pressed in the MF Dial Mode The functions of the six black buttons are described on the following pages DigiSmart 4300 RT User Manual DIAL MODE Selects what types of digits will be transmitted and received by the 4300 RT DTMF Dial Pulse MF also prepares the unit to transmit Call Progress tones measure single frequency tones or set the idle loop voltage threshold The current Dial Mode is shown in the bottom left corner of the display Default mode display reads DTMF Th
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