5-12
Cisco PIX Security Appliance Hardware Installation Guide
78-15170-03
Chapter 5 PIX 520
Replacing a Lithium Battery
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 battery is not a field-replacable unit (FRU). Contact Cisco 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.
Installing a Memory Upgrade
Observe the following warnings, cautions, and notes when installing additional PIX security appliance
system memory.
The following statement applies to DC models:
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC
circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position.
The following statement applies to both AC and DC models:
Warning
Before working on a system that has an On/Off switch, turn OFF the power and unplug the power cord.
Caution
Always remove old memory before installing new memory.
Note
After installing additional memory in the PIX 520, do not remove the memory strips and power on the
unit, or the PIX security appliance will become inoperable.
Caution
If you remove the PIX security appliance chassis chassis cover, always reinstall the chassis cover. Running
the PIX security appliance without the chassis cover causes overheating and damage to electrical components.
