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board, and TLP information is printed at the ROP.
12.12.2 COMMON CONTROL CIRCUITS
When a common control circuit (for example, a GDSUCOM in the SM/SM-2000 or MSCU in the CM) fails a
diagnostic during routine exercise, the unit is taken out of service, TLP information is printed detailing the faulty
circuit board and procedures to repair the faulty unit, and REX bypasses scheduling diagnostics on the subtending
circuits.
12.12.3 OUT-OF-SERVICE UNITS
Before REX schedules tests on a particular unit, it reads a data base to determine its switch maintenance state
(OOS, ACT, STBY, etc.). All out-of-service (OOS) units are not scheduled for diagnostics because they are
assumed to be faulty. It would be redundant to run diagnostics again.
12.12.4 SWITCHING OF ACTIVE/STANDBY UNITS
When REX requests a standby unit to be diagnosed, either in the CM or in an SM/SM-2000, that unit will be restored
to an active state and the active unit will be placed in the standby state, if the diagnostic indicated ATP. Switching
the active and standby guarantees that each standby unit is put into a fully active state at least once per week and is
not left in a standby state waiting for the active unit to be taken out of service. The switching of the standby unit also
allows any latent operational faults to be detected which may not be detected during the running of the diagnostics.
12.12.5 COMMUNICATION MODULE UNITS
12.12.5.1 ONTC Diagnostics
A duplex FPC is needed to run ONTCCOM diagnostics. If a standby FPC is not available, tests will not be
performed. The ONTCCOM will be skipped. Therefore, it should be noted that if such a configuration exists, REX
will not be able to run ONTCCOM diagnostics, and the REX summary will reflect a ``Not Started'' count for the
ONTC.
12.12.6 SWITCH MODULE UNITS
12.12.6.1 Trunk Groups
Each trunk group has associated with it an automatic maintenance limit (AML). This limit represents a minimal
number of trunk circuits needed for service. If this limit is reached while REX is scheduling diagnostics on a
particular trunk group, all subsequent trunk circuits that fail diagnostic tests will be restored back to service (even
though a failure occurred) with a failure message printed on the ROP.
12.12.6.2 Line Units
The grid fabric exerciser (FAB) is an in-service diagnostic test. For software releases, a FAB failure in the grid of LU
Model 1 or halfgrid of LU Models 2 or 3 line units, changes its MCC display state to degraded (DGR).
REX skips FAB testing of grids or gridboards that are out of service (OOS) and those marked customer deny
(CDNY). Grids or gridboards in the DGR state are also skipped because they are known to have failures and have
been identified for craft attention.
12.12.6.3 Other SM/SM-2000 Peripherals
Each type of peripheral circuit has a similar out-of-service threshold like the trunk circuits. These circuits will have
the same affect as the trunk circuits if diagnostic test fail while the AML has been reached.
235-105-210
October 1999
Copyright © 1999
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Содержание 5ESS-2000
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Страница 516: ...Figure 10 24 1 KS 23483 L13 Disk Drive Cable Connection Rear View 235 105 210 October 1999 Copyright 1999 Page 2 ...
Страница 517: ...Figure 10 24 2 KS 23483 L21 Disk Drive Cable Connection Rear View 235 105 210 October 1999 Copyright 1999 Page 3 ...
Страница 518: ...Figure 10 24 3 KS 23841 L15 Disk Drive Cable Connection Rear View 235 105 210 October 1999 Copyright 1999 Page 4 ...
Страница 523: ...Figure 10 24 6 Top View of DUP Showing Internal Cabling 235 105 210 October 1999 Copyright 1999 Page 9 ...
Страница 609: ...2 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 12 ...
Страница 628: ...a SM inhibited Response OK 2 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 8 ...
Страница 653: ...Response OK 2 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 16 ...
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Страница 792: ...3 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 9 ...
Страница 799: ...Figure 11 36 3 1 Cleaning Points 235 105 210 October 1999 Copyright 1999 Page 7 ...
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Страница 999: ...2 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 13 ...
Страница 1008: ...Figure 11 55 1 CTSNS DIP Switch Settings 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Страница 1165: ...Procedure 14 14 RESERVED FOR FUTURE USE PROCEDURE 1 Reserved For future use 235 105 210 October 1999 Copyright 1999 Page 1 ...
Страница 1186: ...Procedure 14 17 RESERVED FOR FUTURE USE PROCEDURE 1 Reserved For future use 235 105 210 October 1999 Copyright 1999 Page 1 ...
Страница 1187: ...Procedure 14 18 RESERVED FOR FUTURE USE PROCEDURE 1 Reserved For future use 235 105 210 October 1999 Copyright 1999 Page 1 ...
Страница 1284: ...Figure 15 15 1 PARADYNE Paradyne Corporation 3810 Modem Diagnostic Control Panel 235 105 210 October 1999 Copyright 1999 Page 6 ...
Страница 1287: ...Figure 15 16 1 153A Adapter Connection Figure 15 16 2 AMATPS Block Diagram 235 105 210 October 1999 Copyright 1999 Page 3 ...
Страница 1289: ...Figure 15 17 2 AMATPS Data Link 235 105 210 October 1999 Copyright 1999 Page 2 ...
Страница 1290: ...Figure 15 17 3 Single Housing B25A Cable Assembly 235 105 210 October 1999 Copyright 1999 Page 3 ...
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Страница 1294: ...Figure 15 17 8 201C to TN82 Data Set Cable Drawing 235 105 210 October 1999 Copyright 1999 Page 7 ...
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Страница 1324: ...11 Type and enter q 12 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 2 ...
Страница 1342: ...Figure 15 40 1 SCANS II Dial Up Data Set Installation Diagram 235 105 210 October 1999 Copyright 1999 Page 2 ...
Страница 1344: ...Figure 15 40 4 59A1 Mounting Front in Slot J3 Figure 15 40 5 2048A Data Set Front 235 105 210 October 1999 Copyright 1999 Page 4 ...
Страница 1345: ...Figure 15 40 6 Berg Connector Terminations and Layout 235 105 210 October 1999 Copyright 1999 Page 5 ...
Страница 1346: ...Figure 15 40 7 B25A Cable 4 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 6 ...
Страница 1360: ...Figure 15 47 2 Typical SCANS III Link Diagram 235 105 210 October 1999 Copyright 1999 Page 2 ...
Страница 1368: ...Response FA or OK appears 17 STOP YOU HAVE COMPLETED THIS PROCEDURE 235 105 210 October 1999 Copyright 1999 Page 2 ...
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Страница 1376: ...Figure 15 55 6 201C to TN83 Data Set Cable Drawing 235 105 210 October 1999 Copyright 1999 Page 6 ...
Страница 1418: ...Figure 15 56 1 PARADYNE 3810 Modem Diagnostic Control Panel 235 105 210 October 1999 Copyright 1999 Page 4 ...
Страница 1421: ...Table 1 1 O M Checklist 235 105 210 October 1999 Copyright 1999 Page 3 ...