AT&T 3.0 manual Removing the User Card Tray and Line Cable

Installing Multi-Function Modules

Before installing an MFM, disconnect all trunk and/or power cords that are attached to the MLX telephone. This is to ensure that no hazardous voltages are present during installation. Ringing voltage from the MFM attached to the MLX telephone can cause electrical shock if adjustments are made while the cords are connected.

Deskstand

Telephone	C a r d
Base
	Tray
	L i n e
	Cable

Figure 3–2. Removing the User Card Tray and Line Cable

To install or replace an MFM and change its pin settings, follow these steps.

NOTE:

If you are installing or replacing an MFM in a wall-mounted MLX-10, MLX-10D, or an MLX-10DP telephone, start at Step 3.

1Place the telephone face down on a flat surface; remove the user card tray and line cable from the bottom of the deskstand. See Figure 3-2.

3-4Installing Telephones and Adjuncts