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Catalyst 2955 Hardware Installation Guide
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Chapter 4 Installation in a Hazardous Environment
Applying the Switch Protective Liner
For multimode (MM) connections, you can connect a 100BASE-FX port to a port
on a target device by using one of the MT-RJ fiber-optic patch cables listed in
Table B-1 on page B-3. Use the Cisco part numbers in Table B-1 to order the
patch cables that you need.
For single-mode (SM) connections, you can connect a 100BASE-LX port to a port
on a target device by using one of the connectors listed in Table B-2 on page B-4.
Use the Cisco part numbers in Table B-2 to order the patch cables that you need.
Applying the Switch Protective Liner
The switch ships with a protective liner that prevents debris from falling into the
switch ventilation holes during installation. Before installing the switch on a DIN
rail or in a 19-inch rack, connecting the switch to a power source, or wiring the
external alarm device relays, you must first apply the protective liner.
Because the protective liner covers ventilation holes on the switch, the liner must
be removed from the switch before power is applied to allow proper airflow
through the switch chassis.
Follow these steps to apply the protective liner:
Step 1 Peel the protective liner from the backing.
Step 2 Apply the protective liner to the switch:
• If you are installing the switch in a parallel mounting position, apply the
protective liner to the switch top panel.
• If you are installing the switch in a face-down mounting position, apply the
protective liner to the switch rear panel.
