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Maintenance Objects
555-233-119
914
Issue 5 October 2002
CO-TRK (CO Trunk)
NOTE:
If ATMS testing is enabled, check the error log for ATMS Errors #3840 and
#3841. If the error log indicates that measurements exceeded acceptable
thresholds, and if no other trouble is found with the test trunk command,
run the ATMS test call with the test analog-testcall port UUCSSpp full
command.
Central Office (CO) trunks are 2-wire analog lines to the CO which support both
incoming and outgoing calls. A CO trunk circuit pack provides an interface
between the 2-wire analog line from the CO and the system’s (4-wire) Time
Division Multiplex (TDM) Bus. The CO Trunk circuit packs include:
■
TN747B (United States), 8 port loop start or ground start CO, foreign
exchange (FX), or Wide Area Telecommunications (WATS) trunks.
■
TN438B (Australia), 8 port loop start.
■
TN447 (United Kingdom), 8 port ground start.
■
TN465B/C (multiple countries), 8 port loop start.
■
TN2138 (Italy), 8 port loop start.
■
TN2147C (multiple countries), 8 port loop start and United Kingdom Earth
Calling or Loop Calling Guarded Clearing.
MO Name (in Alarm Log) Alarm Level Initial Command to Run
1
1. Where P is the port network number (1 for PPN); c is the carrier designation (for example, A, B, C,
D, or E); and SS is the address of the slot in the carrier where the circuit pack is located (for example,
01, 02, etc.etc.).
Full Name of MO
CO-TRK MAJOR
2
2. A MAJOR alarm on a trunk indicates that alarms on these trunks are not downgraded by the set
options command and that at least 75 percent of the trunks in this trunk group are alarmed.
test port PCSSpp l CO Trunk
CO-TRK MINOR test port PCSSpp l CO Trunk
CO-TRK WARNING test port PCSSpp l CO Trunk