10-12 Service verification
297-2521-106 Standard 23.01 March 2001
Interpreting PRI DTCI states
Table 10-5 lists PRI DTCI states.
Table 10-5
PRI DTCI states and actions
DTCI state Explanation and action
In service (INSV) The DTCI is in service. No action is required.
In service trouble (IStb) A fault does exist in the DTCI; however, services are not impacted.
Off-line (OFFL) The DTCI is off-line and possibly pending office data modifications.
Manual busy (MANB) The DTCI has been manually busied by maintenance personnel.
Manual maintenance may be in progress.
C-side busy (CBSY) This implies there is no in-service message connection between the
DTCI and the network, or the network is out of service.
System busy (SYSB) The DTCI is out of service. The system has detected a fault and
taken the DTCI out of service.
—end—
Restoring service to the DTCI
Table 10-6 lists DTCI states and actions.
Table 10-6
DTCI states and actions
DMS-250
switch states
Resource out of service Actions to be taken
MANB DTCI is manual busy From PM level of the MAP terminal:
- Post the DTCI
- Return the DTCI to service
ISTB DTCI is in service trouble From PM level of the MAP terminal:
- post the DTCI
- enter QUERYPM FLT
- diagnose fault
—end—
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