DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-672DS1 CONV-BD
9
Converting DS1-CONV complex to direct-connect fiber (duplicated PNC)
NOTE:
The procedure below is g eneric in its scope. Chec k the customer’s switch
configuration for EI/SNI structures.
!WARNING:
Do not power down a Switch Node carrier to replace a circuit pack.
!WARNING:

In duplicated PNC configurations, one DS1-CONV complex in the fib er-link

serves as the active and the sec ond DS1-CONV complex serves as the

Enter change system-parameters
duplication. Change the Enable
Operation of PNC Duplication? field
to y.
Enable PNC duplication.
Enter add fiber-link <fiber #> to re-ad d the
fiber-link using TN1654 DS1 CONV circuit
packs. See the

Definity Enterprise

Communications Server, Release 5,

Implementation Manual

, 555-230-302, for
details on TN1654 administration.
fiber # represents the fiber-link number
associated with the TN574 DS1 CONV
Complexes that are being upgraded to
TN1654 DS1 CONV Complexes.
Enter test alarms long clear for category
exp-intf.
Wait 5 m inute s for SN I-BD, SNI-PEER,
FIBER-LK and DS1C-BD alarms to clear, or
enter clear-firmware counters <a-pnc or
b-pnc>
Enter status pnc If either PNC State of Health is not
"functional", consult the PNC-DUP section
of the Maintenance Manual.
Table 9-260. Upgrading TN574 DS1 CONV Circuit Packs in a fiber-link to
TN1654s—Duplicated PNC — Continued
Steps Comments
Continued on next page