Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Modules Internal to the Cisco 1941 Router
13
Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Figure 9
Connecting the ISM to the Cisco 1900 Series System Board
Step 2
Remove the four screws from the system board and keep them. The screws will be used to install the ISM
on the standoffs in
Step 3
.
Step 3
Locate the four machine-thread standoffs from the accessory kit. (See
Figure 10
.)
Figure 10
Metal Standoffs
Step 4
Install the four machine-thread metal standoffs into the system board in place of the four screws removed
in
Step 2
, as shown in
Figure 9
. Use a 1/4-inch nut driver to tighten the standoffs. Torque the standoffs
to 6 to 8 in-lb (0.68 to 0.90 N-m).
Caution
Make sure that the standoffs are straight when installed. Tighten them gently but firmly. Torque them to
6 to 8 in-lb (0.68 to 0.90 N-m). The shoulder must be seated tightly against the system board.
Step 5
Insert the connector on the ISM into the ISM connector on the system board. (See
Figure 9
.)
Note
Be sure to press firmly on the ISM until the board seats onto the connector. (See
Figure 9
.)
Step 6
Insert the screws through the ISM into the metal standoffs. (See
Figure 9
.) Carefully tighten the screws
with a Phillips screwdriver. Torque the screws to 6 to 8 in-lb (0.68 to 0.90 N-m).
1
ISM
2
Standoffs (4)
250948
1
2
2
121202
