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Issue 1 September 1995 8-1
8
Test the System
The following tests provide verification of the Time Division Multiplexing (TDM)
cables and terminators, and fibre-optic inter-cabinet cables (ICC). If a FAIL
Result code is seen or other problems are indicated, check these cables. If
problems persist, refer to the U.S. English book,
DEFINITY Communications
System Generic 1 and Generic 3i Maintenance
, 555-104-205.
The status of the system should be reviewed first, followed by testing the
tone-clock, Time Division Multiplexing (TDM) bus, and duplication link in the
Processor Port Network (PPN). Then test expansion interfaces, tone-clock(s),
Time Division Multiplexing (TDM) buses, and duplication in the Expansion Port
Networks (EPNs).
NOTE:
Circuit pack positions are usually given by cabinet, carrier (within cabinet),
and slot (within carrier). They may also be given by port (within slot). The
term “cabinet” refers to a stack of single carrier cabinets making up one
port network. A port network is defined as a group of cabinets connected
together with one Time Division Multiplexing (TDM) bus.
Check the System Status for Each
Cabinet
The system status may suggest problem areas. Specific tests later provide more
specific diagnostic information.
1. Verify the terminal screen displays:
command:
2. Type status system all-cabinets and press
ENTER.