Removing The Chassis Cover - Cisco 2811 - Voice Security Bundle Router Hardware Manual

Removing the Chassis Cover

Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.
Warning
Statement 1
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
Warning
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals. Statement 43
Warning Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables,
detach the end away from the unit first. Statement 1026
Removing the Chassis Cover
Cisco 2801 routers have a cover that slides off the rear of the chassis. Cisco 2811 routers have a cover
that lifts off after you slide it free it from front panel. Cisco 2821 and Cisco 2851 routers have a hinged
cover that comes off after you rotate it upward and separate it from its hinge.
Do not, under any circumstances, tamper with or attempt to remove the safety shields protecting the
Caution
WIC/HWIC slots and connectors on the Cisco 2811, Cisco 2821, or Cisco 2851 routers.
Removing the Cover from Cisco 2801 Routers
To remove the cover from a Cisco 2801 router, follow these steps:
Make sure that the router is turned off and is disconnected from the power supply.
Step 1
Warning Before opening the unit, disconnect the telephone-network cables to avoid contact with
telephone-network voltages. Statement 1041
Use a Phillips screwdriver to remove the ground connection screw. Use a flat-blade screwdriver or a hex
Step 2
driver to remove the three screws that hold the chassis and the chassis cover together, as shown in
Figure
Installing and Upgrading Internal Modules in Cisco 2800 Series Routers
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