Black Box BRTS-100 manual Comprehensive troubleshooting flow chart 1

Page 18

CHAPTER 4: Test Procedures

12.Put the circuit into its normal operating configuration. (Connect all terminals to the S/T interface.)

Comprehensive Troubleshooting Flow Chart

Initially, the Test Set should be in NORMAL mode

START

PUT CIRCUIT IN POINT TO POINT CONFIGURATION

(CONFIG. 1)

CHECK POWER

LINE TEST

INITIATE

GOOD LINE,

 

NO

DOES RED

GRN

 

 

 

 

TEST RESULT?

TERMINAL SHOULD

 

 

 

 

 

 

LIGHT FLASH?

 

 

WORK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEM

 

 

CHECK LOOP

 

 

 

 

 

 

PUT CIRCUIT

 

 

COULD BE

 

 

 

 

 

 

JITTER IN NT1,

 

 

 

 

 

 

 

 

 

 

BACK TOGETHER

 

 

OR NOISE

 

 

 

 

 

 

 

 

ON LINE

 

 

 

 

 

 

 

 

 

 

 

 

DONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL

YES

GOOD LINE,

 

 

 

 

 

 

 

 

 

 

WORK?

 

 

DONE

 

 

 

 

NO

A

Figure 4-4. Comprehensive troubleshooting flow chart (1 of 2).

17

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Contents BRTS-100 Isdn Test Set FCC Statement BRTS-100 Isdn Test SET NOM Statement Trademarks Used in this Manual Contents Specifications How to Use This Manual IntroductionOverview Features 100 EstConnecting the Unit OperationBRTS-100 Isdn Test Set controls and indicators Passive BUS Powering Up the Unit Controls and Indicators Feature ButtonsIndicators Modes of Operation Test Status PASS/FAIL Lights Reflects test status Test Procedures Test Configuration 1 Point-to-Point NT1 FigureTest Procedures Comprehensive Troubleshooting Procedure Comprehensive troubleshooting flow chart 1 Comprehensive troubleshooting flow chart 2 Check Power Phantom Conclusion LightCheck Power Check LoopTest Procedures Check loop flow chart 1 Check loop flow chart 2 Check loop flow chart 3 Test Procedures Passive Bus Configuration Check Terminations Passive Bus-Check TerminationsTest Procedures Proper device terminations diagram Pair Reversal Pair reversal flow chart 1 Pair reversal flow chart 2 10. Pair reversal diagram Monitor 11. Monitor flow chart Power-Source Indicators Technical ReferenceActivation/deactivation procedure Activation/Deactivation ModesLine Test/Transmit See Figure Receive TestLevel Test Transmit and line test AC Impedance DC ContinuityAC impedance Speaker Two Test Set units used for tracingAppendix Maintenance Battery ReplacementPin Jack Replacement Figure A-2. Replacing the 8-Pin Jack ConnectorsCopyright 2002. Black Box Corporation. All rights reserved