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Connecting Door Speaker, Door Button, and Door
Ajar Switch to the AT&T Door Phone Controller
Use the diagram in Figure 2-4 and follow the steps below:
Polarity of wires is not important.
Total wire length should not
exceed 1500 feet.
Door Ajar switch should be
closed when door is closed. If a
door ajar switch will not be
used, you must leave a jumper
installed across the two “Door
Ajar Switch” terminals.
1.
2.
3.
Run shielded twisted pair wires (22–24AWG) from the
“Speaker” terminals on the rear panel of the AT&T Door
Phone Controller (13 & 14) to the installed Door
Speaker (1 & 2). Connect the shield to the “Shield” ter-
minal on the controller (12).
Run 2 wires (22–24AWG) from the “Door Bell Button”
terminals (10 & 11) to the door bell push button on the
installed door speaker/push button assembly (3 & 4).
Run 2 wires (22-24AWG) from the optional “Door Ajar
Switch” terminals (8 & 9) to the installed door ajar
switch.
Remote Door Open Switch (optional)
A remote door open switch (normally-open contact) provides
additional means for opening an electric door opening device.
To connect wires for a remote door open switch use the
diagram in Figure 2-5 and follow the steps below.
1. Install the remote door open button in desired location
using manufacturer’s installation instructions.
2. Run 2 wires (22–24AWG) from the installed (normally-
open contact) remote door open switch to the “Remote
Door Open” terminals (6 & 7) on the AT&T Door Phone
Controller back panel (polarity of wires is not important).
Installation Procedures 2-13