User's Manual

CHAPTER 4 NDA-24300
Page 250
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
• Refer to Figure 4-2 for CPR
face layout.
• Refer to Figure 4-2 for CPR
face layout.
• Refer to Figure 4-3 to replace
the CPU.
Cables to be disconnected
Ether cable: UTP CTG5 ST CA-n
Note:
The kind of Ethernet cable may vary,
Disconnect power cables from the OUTPWR
connector and INPWR connector on PZ-PW92.
Disconnect Ethernet cables from the front
connectors on the PZ-PC19 (LANI).
Take off the four screws fastened onto the CPR.
(Keep the removed screws.)
B
A
Turn OFF the SW key on PZ-PW92.
Disconnect bus cables from the front connectors
on the PZ-GT16.
Cables to be disconnected
EXGT BUSCA-A for CN-A connector
50-40 GT BUS CA-A for CN-B connector
vary, depending on its connecting
conditions.
Cable to be disconnected from OUTPWR
CPU #0: 6P-(4P-3P) PWR CA-A
CPU #1: 6P-(4P-3P) PWR CA-B
Cable to be disconnected from INPWR
CPU #0: 4P-2P PWR CA-A
CPU #1: 4P-2P PWR CA-B
PWR (PZ-PW92)
FRONT VIEW
SW
ON
OFF
PALM
-48V
ON
ALM
OUTPWR
INPWR