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74 A
PPENDIX
B: F
IELD
-R
EPLACEABLE
C
OMPONENTS
CAUTION: If the resistance is too great, the module
connectors and backplane connectors may not be
aligned. Forcing the module forward can damage the
board and backplane connectors. If necessary, remove
and reinsert the module, ensuring that the connectors
are properly aligned. Do not seat the module by
tightening the captive screws.
6
Tighten the captive screws to secure the module in
the chassis.
7
Reconnect all cables to the module.
Figure 26
Removing and Replacing a Module
Power Supply Assemblies Removal and
Replacement
The CoreBuilder 3500 system operates using a single
power supply assembly. You can add a second power
supply to the system for fault-tolerant redundancy. If
either power supply fails, the associated power supply
LED (PS1 or PS2) on the system’s front panel lights
yellow.
Removing and Replacing the Power Supply
1
Read and follow all “Safety Precautions” earlier in this
appendix.
2
Lift the power supply latch to disconnect the power
cord and remove it from the system.
3
Loosen the captive screws that secure the power
supply to the chassis.
4
Grasp the power supply handle and gently slide the
power supply out of the chassis.
5
Gently slide the new power supply into the chassis.
6
To seat the power supply, ensure that the power
supply connectors and backplane connectors are
aligned. Then push the power supply inward until the
connectors engage. You feel a slight resistance as the
connectors engage.
CAUTION: If the resistance is too great, the power
supply connectors and backplane connectors may not
be aligned. Forcing the power supply inward can
damage the power supply or backplane connectors. If
necessary, remove and reinsert the power supply,
ensuring that the connectors are properly aligned.
RUN SYS
INS
PS1
PS2
FAN
R
N
S
TEMPCONFIG
INS
PCMCI
MODEM
TERMINAL
ETHERNET
10BT
PWR
ERROR
1X
L E T
2X
L E T
3X
L E T
4X
L E T
5X
L E T
6X
L E T
100 BASE - TX
3C35210
PWR
INS
ERR
R
Captive
screw
100BASE-TX
module
Injector/Ejector
handle