Telephone System Installation and Maintenance Guide

88 Chapter 7 Installing the main unit
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9 Repeat step 8 for each BCM50 power supply.
Installing the wiring field card (optional)
You install the optional wiring field card (WFC) in the cable management tray of the main unit.
To install the WFC
1 Clear the WFC installation area of all cables.
2 Place the WFC in the installation area with the 50-pin header/cable connector at the top.
3 Slide the WFC down until it is at the bottom of the installation area and held in place by the
three clips (see Figure 36).
Figure 36 Slide in the WFC
4 Press the WFC firmly at the top left corner, center, and right tabs.
The WFC snaps into place (see Figure 37).
Figure 37 Snap the WFC into place
5 Optional — Install the three screws to secure the WFC in place.
6 Proceed to “To connect the cables to the wiring field card (optional)” on page 111.