Cisco 3900 series User Manual

5-18
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-03
Chapter 5 Installing and Upgrading Internal Modules and FRUs
Installing and Removing ISMs
Step 7 Replace the chassis cover. For Cisco 2900 series, see the “Removing and Replacing the Chassis Cover”
section on page 5-4. For Cisco 3900 series, see the “Removing and Replacing the Services Performance
Engine” section on page 5-6.
Installing an ISM
To install an ISM, use a number 2 Phillips screwdriver or flat-blade screw drive, and a 1/4-inch nut driver
or wrench. Cisco 2900 and Cisco 3900 series routers have one ISM connector on the system board.
Step 1 Read the “Safety Warnings” section on page 5-2 and disconnect the power supply before you perform
any module replacement.
Step 2 Access the ISM slot. For Cisco 2900 series, see the “Removing and Replacing the Chassis Cover”
section on page 5-4. For Cisco 3900 series, see the “Removing and Replacing the Services Performance
Engine” section on page 5-6.
Step 3 Locate the four standoffs from the accessory kit. See Figure 5-13.
Figure 5-13 Standoffs
Step 4 Install the four standoffs into the system board in the attachment locations, as shown in Figure 5-14. Use
a 1/4-inch nut driver to tighten the standoffs. The locations for ISM standoffs have white plastic
grommets surrounding the mounting hole location.
121202

Cisco 3900 series Specifications

General

Brand	Cisco
Model	3900 series
Category	Network Router
Language	English