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Cisco PIX Security Appliance HardwareInstallation Guide
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Chapter7 PIX 535
Replacing a Lithium Battery
Figure7-6 LAN-Based Failover Connections
Step 5 If you are using Stateful Failover, use one of the following types of connections, that is appropriate for
your system, between the dedicated interfaces on the PIX security appliance:
100BaseTX full duplex on a dedicated switch or dedicated VLAN of a switch
1000BaseTX full duplex on a dedicated switch or dedicated VLAN of a switch
Note For Stateful Failover on the PIX535, you must use a Gigabit Ethernet (GE) failover link with
GE interfaces.
Caution Do not turn the power on until the units are connected and the primary unit is configured completely.
Step 6 Power the primary unit on first, then power on the secondary unit. Within a few seconds, the active unit
automatically downloads its configuration to the standby unit.
If the primary unit fails, the secondary unit automatically becomes active.
Replacing a Lithium Battery
The PIX security appliance has a lithium battery on its main circuit board. This battery has an operating
life of about ten years. When the battery loses its charge, the PIX security appliance cannot function.
The lithium bat tery is not a field-replaceable unit (FRU). Contact Ci sco TAC to replace the battery.
Note Do not attempt to replace this battery yourself.
Warning
Danger of explosion exists if the lithium battery is incorrectly replaced. Replace only with the same
or equivalent type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer's instructions.
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