Cisco Prisma II Installation Manual page 62

Chapter 2 Module Installation
1 Locate the fiber guides at the bottom of the chassis and the module guide slots
inside the chassis as shown in the following illustration.
2 Align the ridges on the top and bottom of the module with the module guide
slots located on the chassis.
3 Gently slide the module into the chassis until its power and communications
connections join connectors on the midplane bus. Do not force the module into the
chassis. If properly aligned, it should slide in with minimal force.
4 Tighten the screw at the top of the module to secure it in the chassis. Use a 3/8-
in. flat-blade screwdriver to secure. Do not over-tighten.
5 Fill any unused chassis slots with module blanks to help ensure proper cooling
air flow.
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