Cisco 1601 - Router - EN Hardware Installation Manual page 52

Removing or Replacing Cisco Interface Cards for Cisco Access Routers
Removing or Replacing Cisco Interface Cards for Cisco Access
Routers
WAN interface cards and voice interface cards are not interchangeable. To prevent damage to the card,
Caution
confirm that you are installing the correct type of interface card for the slot or network module you
intend to use.
To remove or replace an interface card from a Cisco access router, perform these steps:
Step 1 Turn off electrical power to the router. Leave the power cable plugged in to channel ESD voltages to
ground.
(For the Cisco MWR 1941-DC router) Turn off power by turning the DC power source circuit breaker
to OFF. Tape the circuit breaker in the OFF position. To channel ESD voltages to ground, do not remove
the wire from the ground lug.
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
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. Statement 7
Remove all network cables, including telephone cables, from the router.
Step 2
To prevent damage to the interface card, turn off electrical power and disconnect network cables from
Caution
the chassis before inserting an interface card into an installed network module or router slot.
To make reconnection of network interface cables easier, label the cables or prepare a network cabling
Timesaver
diagram before removing network interface cables from the network module.
Using a number 1 Phillips or flat-blade screwdriver, loosen the captive mounting screws on the interface
Step 3
card faceplate.
Using the faceplate edges, pull the interface card from the router slot.
Step 4
Use the thumbscrews to pull the interface card faceplate away from the router chassis until you can grip
Tip
the faceplate with your fingers.
Do not touch the interface card board. Handle the interface card by the edges of the faceplate to reduce
Caution
the risk of damage to the card.
Take one of the following actions:
Step 5
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If you are replacing the interface card, use the procedures described in the
Interface Cards in Cisco Access Routers" section on page
Installing Cisco Interface Cards in Cisco Access Routers
"Installing Cisco
5.