AT&T Door Phone Controller - Manual (Page 42)

AT&T DOOR PHONE CONTROLLER
BACK PANEL
OPTIONAL
TO C.O.
TO DOORBELL BUTTON
TO DOOR SPEAKER
TO DOOR AJAR SWITCH
TO REMOTE DOOR OPEN SWITCH
TO DOOR STRIKE PLATE DEVICE
TO AUXILIARY ALERT DEVICE (DOOR BELL/CHIME)
(Outside Line)
TO TELEPHONES
Figure 3-2. Connecting AT&T Door Phone Controller to Standard Telephone
Equipment
3-4 Installation — Home/Residential