Cisco 1751 - Manual (Page 69)

C-3
Cisco 1751 Router Hardware Installation Guide
78-11258-04
Appendix C Installing and Upgrading Memory and Packet Voice Data Modules
Opening the Chassis
Opening the Chassis
To install or upgrade memory or data modules, you must open the chassis.
Opening the chassis requires a number one Phillips screwdriver.
Follow these steps to open the chassis:
Step 1 Make sure the router is turned off and is disconnected from the power supply.
Step 2 Turn the router upside down, and rest the top of the router on a flat surface.
Step 3 Use the Phillips screwdriver to remove the four screws that hold the top and
bottom of the chassis together, as shown in
Figure C-1 on page C-4 .
Step 4 Turn the router back to its original position (right-side up).