DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1577SYNC (Synchronization)
9
11. Use status pnc to determine which PNC is active. Then use list
fiber-links to determine the EIs on the active PNC and the EIs associated
with the slave PN. If the switch does not have PNC d uplication, the EIs are
all on the active PNC, A-PNC. A PNC interchange can be done via reset
pnc interchange before replacing EIs if the system has PNC duplication.
If the slips go away after the PNC interchange, replace the EIs that were
previously active.
12. Replace the circuit p acks one at a time and wait at least one hour to
determine if the problem has gone away. This procedure is disrup tive and
should be done after hours if possible.
An alternative to replacing the EI and SNI in systems where the PNC is
duplicated , is to perform a PNC interchange via reset pnc interchange. If
the problem goes away, either the EI or the SNI on the previously active
PNC should be replaced . Replace one at a time and make that PNC active
again to determine whether the p roblem is fixed.
An alternative to replacing the tone-clock circ uit pack in systems where
the tone-clocks are dup licated, is to run the set tone-clock c ommand to
switch tone-clocks. If the p roblem goes away, the previously ac tive
tone-clock should be replaced.
Also, before replacing an SNC circuit pack, the set s witch-node-clock
command can be used if SNCs are duplicated in the carrier. If the
problem goes away, the previously ac tive SNC should be replaced .
13. Replace the circuit p acks one at a time and wait at least one hour to
determine if the problem has gone away. This procedure is disrup tive and
should be done after hours if possible.
An alternative to replacing the EI and SNI in systems where the PNC is
duplicated , is to perform a PNC interchange via reset pnc interchange. If
the problem goes away, either the EI or the SNI on the previously active
PNC should be replaced . Replace one at a time and make that PNC active
again to determine whether the p roblem is fixed.
An alternative to replacing the tone-clock circ uit pack in systems where
the tone-clocks are dup licated, is to run the set tone-clock c ommand to
switch tone-clocks. If the p roblem goes away, the previously ac tive
tone-clock should be replaced.
Also, before replacing an SNC circuit pack, the set s witch-node-clock
command can be used if SNCs are duplicated in the carrier. If the
problem goes away, the previously ac tive SNC should be replaced .