Black Box BRTS-100 manual Activation/Deactivation Modes, Activation/deactivation procedure

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BRTS-100 ISDN TEST SET

5.2 Activation/Deactivation Modes

The following information provides the steps that lead to an Active Link state and subsequent Activation/Deactivation modes (Figure 5-2) between the Test Set (TE) and an NT device. The Test Set uses this Activation/Deactivation procedure in Line Test, Transmit, and D Activity modes. See Figure 5-3 for a diagram of Info 0–Info 4.

DIU—Deactivate Indication (Timer [32 ms] expired or Info 0 received [during 16 ms] after deactivation request).

AIU—Activate Indication (Synchronous Receiver).

ARU—Activate Request (Info 1 Received).

RSYD—Resynchronization of U-Interface (Transmission of pseudo ternary pulses at 96-KHz frequency after loss of synchronization of U-Interface; Info 2).

ARD—Activate Request (Transmission of Info 3). AID—Activate Indication (Transmission of Info 4, Active Link). DR—Deactivate Request.

ARU

RSYD

ARD

AID

DR

0.5ms MAX 6ms

16ms

INFO 0

INFO 1

INFO 2

INFO 3

INFO 4

INFO 0

INFO 0

MAX 2ms4ms

 

 

 

 

 

16ms

 

 

32ms

 

 

 

 

 

 

 

 

 

 

ARU

AIU

DR

DIU

Figure 5-2. Activation/deactivation procedure.

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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 Introduction How to Use This ManualOverview 100 Est FeaturesOperation Connecting the UnitBRTS-100 Isdn Test Set controls and indicators Passive BUS Controls and Indicators Feature Buttons Powering Up the UnitIndicators Test Status PASS/FAIL Lights Reflects test status Modes of OperationTest Configuration 1 Point-to-Point NT1 Figure Test ProceduresTest Procedures Comprehensive Troubleshooting Procedure Comprehensive troubleshooting flow chart 1 Comprehensive troubleshooting flow chart 2 Phantom Conclusion Light Check PowerCheck Loop Check PowerTest Procedures Check loop flow chart 1 Check loop flow chart 2 Check loop flow chart 3 Test Procedures Passive Bus-Check Terminations Passive Bus Configuration 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 Technical Reference Power-Source IndicatorsActivation/Deactivation Modes Activation/deactivation procedureReceive Test Line Test/Transmit See FigureLevel Test Transmit and line test DC Continuity AC ImpedanceAC impedance Two Test Set units used for tracing SpeakerBattery Replacement Appendix MaintenanceFigure A-2. Replacing the 8-Pin Jack Connectors Pin Jack ReplacementCopyright 2002. Black Box Corporation. All rights reserved