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System Processor Battery Replacement 77
Figure 29
Removing the System Battery
Installing the Battery
To install the new battery onto the system processor,
follow the steps in this section.
CAUTION:
When you are handling the system
processor, 3Com recommends that you always use a
wrist strap connected to a proper ground. This
precaution helps prevent the system processor from
damage by electrostatic discharge.
1
Ensure that you are properly grounded.
2
Place the new battery into the battery case, verifying
that the polarity (+/–) on the battery matches the
polarity that is marked on the system processor.
3
Place the top of the battery case over the battery.
4
Slide the system processor into the chassis.
5
Move the injector/ejector handles to the inward
position to engage the system processor and
backplane connectors. You feel a slight resistance as
the connectors engage.
CAUTION:
If the resistance is too great, the system
processor and backplane connectors may not be
aligned. Forcing the system processor inward can
damage the board or backplane connectors. If
necessary, remove and reinsert the system processor,
verifying that the connectors are properly aligned. Do
not seat the system processor by tightening the
captive screws.
6
Tighten the captive screws to secure the system
processor in the chassis.
7
Lift the power supply latch and insert the power cord
into the system.
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
3C54321
PWR
INS
ERR
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
3C54321
PWR
INS
ERR
100 BASE - FX
3C54321
PWR
INS
ERR
1X
L
E
T
2X
L
E
T
3X
L
E
T
6X
L
E
T
5X
L
E
T
4X
L
E
T
RUN SY
INS
PS
PS
FAN
R
N
S
TEMPCONFI
INS
PCMCI
MODEM
TERMINAL
ETHERNET
10BT
PWR
ERROR
R
1X
L E
100 BASE - TX
3C54321
PWR
3
.
6
V
O
L
T
S
R
System
processor
Captive
screw
Injector/Ejector
handle
Battery
Top of
battery case