DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-666DS1 CONV-BD
9
Clear Firmware-Counters Command
DS1 CONV firmware generates error reports autonomously. This takes place
independently of tec hnician-demanded tests. Therefore, the test board UUCSS
clear command will not affec t the error status reported by fir mware. The clear
firmware-counters command will clear all on-board firmware-detected
errors unconditionally.
The clear firmware-c ounters UUCSS command sends a downlink messag e to
the DS1 CONV circuit packs, causing them to clear out their firmware error
counters and failure datab ases. Once the firmware failure databas e is cleared,
the failure audit test (#949) will pass. If p roblems still exist, the firmware will
increment its error counters and the f ailure audit test will begin failing again.
This command should not b e used as a replacement for the rep air procedures
associated with the hardware error log entries. This command may be useful if a
problem has been fixed and off-board alarms assoc iated with the problem are
still active.
Downtime required when upgrading to TN1654 DS1 CONV Circuit Packs
!WARNING:

Upgrading f rom TN574 DS1 CONV circuit packs to TN1654 DS1 CONV

circuit packs wi ll require down time for the affected EPN.

The TN1654 DS1 Converter circuit pack is not comp atible with the TN573 SNI
circuit pack, the TN574 DS1 CONV board, the Y-c able used to connect to the
TN574 DS1 CONV board or pre-G3V5 software. All DS1 CONV boards and
Y-cables must be upg raded. If the EPN is remoted via a Center-Stage Switc h, the
connected SNI must also be up graded. A TN573B or later suffix SNI board must
be used when connec ting to a TN1654 DS1 CONV board.
The fiber-link administration for the TN574 DS1 CONV Complex must be removed
via the remove fiber-link command . The change circuit-pac k form must be
updated to reflec t that TN1654 boards are now being used . The TN1654 DS1
CONV Complex can then be admi nistered via the add fiber -link command.
Replacing a DS1 CONV Circuit Pack with thesame type DS1 CONV circuit pack—SimplexPNC
!WARNING:
Do not power down a Switch Node carrier to replace a circuit pack.