Cisco Cisco CWDM Single Fiber MUX 4 Mux Demux Module Guía De Instalación

The CWDM passive optical system includes the system shelf, CWDM OADM plug-in modules, 
CWDM Mux/Demux plug-in modules, and CWDM GBICs.

You must first install the system shelf, then the CWDM OADM and CWDM Mux/Demux plug-in 
modules, followed by the CWDM GBICs you want to install. The following sections provide the 
installation procedures for each of these components:

Ensure that you install the CWDM system shelf in the same rack or an adjacent rack to 
your Catalyst 4000 family switch so that you can connect all the cables between your 
CWDM plug-in modules and the CWDM GBICs in your switch.

Follow these steps to mount the system shelf on an equipment rack:

Align the mounting holes in the L brackets with the mounting holes in the equipment rack.

Secure the system shelf using four (two per side) 12-24 x 3/4-inch screws through the elongated holes 
in the L bracket and into the threaded holes in the mounting post. (See Figure 11.)

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