DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-427CO-TRK (Analog CO Trunk)
9
CO-TRK (Analog CO Trunk)
If ATMS testing is enabled, check the error log for ATMS errors 3840 and 3841. If
the error log indicates that measurements exceeded a cceptable th resholds, and
no other trouble is found with test trunk, run the ATMS test call with test
analog-testcall port UUCSSpp full.
NOTE:
Many trunk problems are caused by incorrect setting s of parameters on the
trunk group administra tion form. Settings must be comp atible with the local
environment and with parameter setting s on the far-end. Refer to
DEFINITY
Enterprise Communications Server Release 5.4 Administration and Feature
Description
. The Application Notes sec tion of that book shows the correct
settings for administrable timers and other parameters on a country-by-
country basis.
Analog CO trunks are 2-wire analog lines to the CO which support both inc oming
and outgoing c alls. CO trunk circuit pac ks have eight ports, eac h of which
provides an interface b etween the 2-wire CO line and the 4-wire TDM bus. The
system supports the following CO trunk circuit pac ks:
The following sequences show the interac tions between the switch and the CO
during call setup for both loop-start and g round-start trunks.
MO Name (in
Alarm Log) Alarm
Level Initial Command to Run1
1. UU is the universal cabinet number (1 for PPN, 2 -44 for EPNs). C is the carrier
designation (A, B, C, D, or E). SS is the number of the slot in which the circuit pack
resides (01 to 21). pp is the two digit port number (01, 02, ...).
Full Name of MO
CO-TRK MAJOR2
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% of the trunks in this trunk group
are alarmed.
test port UUCSSpp l Analog CO Trunk
CO-TRK MINOR test port UUCSSpp l Analog CO Trunk
CO-TRK WARNING test port UUCSSpp l Analog CO Trunk
TN438 TN2138
TN447 TN2147
TN465 TN2148
TN747