Cisco 1605-R How To Use Manual page 37

Installing a Network Module in a Cisco 3600 Series or Cisco 2600 Series Router
You can install modules in the chassis either before or after mounting the
Warning
router. If possible, install the modules with the router in the position that provides the best
access to the rear panel. You can install any module into any available slot in the chassis.
Do not insert a module into a slot when power is ON or network cables are
Caution
connected.
Note Do not install an ISDN BRI WAN interface card or an ISDN BRI network module
in the same chassis as an ISDN PRI network module. This configuration is not supported.
To install a network module in a Cisco 3600 series or Cisco 2600 series router:
Step 1 Power OFF the router. However, to channel ESD voltages to ground, do not
unplug the power cable. Remove all network interface cables, including
telephone cables, from the rear panel.
Use a Phillips or flat-blade screwdriver to remove the blank filler panel from the
Step 2
slot where you plan to install the module. Save the filler panel for possible future
use.
Step 3 Align the module with the guides in the chassis and slide it gently into the slot.
(See Figure 2-1.)
Installing WAN and Voice Interface Cards in a Cisco Modular Router 2-3