Replacement Procedure Of Fanc (Pz-M699) - NEC Univerge SV8500 Operation And Maintenance Manual

2.5

Replacement Procedure of FANC (PZ-M699)

This section explains how to replace FANC (PZ-M699) that is accommodated in PIR
and TSWR. The FANC controls three FANs, providing operating power to each FAN
from the system via this card. For this reason, all FANs that are connected to this card
will be stopped during the FANC replacement. FANC is mounted on the upper front of
the FANU. The figure below shows PZ-M699.
FANU
(connector)
FANC
bracket (left)
It is not necessary to shut down the system during FANC replacement.
CAUTION
Complete the entire procedure within about 15 minutes; where the temperature is around 77
CAUTION
degrees F.
[START]
STEP 1: Remove the front cover of the rack (PIR/TSWR) located just below the FANU.
FANU
Figure 5-5 PZ-M699
FAN PWR SW
FANU
ON
FUSE
Fuse
(1.0 A)
CHAPTER 5 Operation Procedure for System with PIR
FAN0 FAN1 FAN2
xxxx xxxx xx
MADE IN JAPAN
PZ-M699
FAN W SW (Power switch for FANs)
- Upward: ON (Normal setting)
- Downward: OFF
a rack located just below the FANU
(PIR/TSWR)
– 577 –
Contents
Static Sensitive
Handling
Precautions Required
FAN0/FAN1/FAN2
FAN operating power is provided
from these connectors.
FANC bracket (right)
Front Cover
ATTENTION