AT&T Door Phone Controller - Manual (Page 79)

Table 7-1. Troubleshooting Procedures (Continued)
Trouble Possible Cause Possible Solution
Getting door-ajar callback Missing jumper on terminal Jumper pins 8 & 9 of terminal
when door ajar switch is not block. block.
used
Receive C.O. call waiting Door Phone Controller optioned Verify DIP switch positions.
tone when accessing the for dedicated mode instead of
Door Phone Controller but Trunk Saver or Port Saver Mode.
cannot dial and/or hook-flash
to connect to call
PBX does not relay the hook- Use in dedicated mode.
flash.
Cannot open door remotely Door Unlock option disabled If error tone, verify Door Open
using Touch Tone door o r Code and Door Unlock enable
unlatch function Wrong Door Code. option.
Check all wiring from AT&T Disconnect wires from the
Door Phone Controller to electric terminal block “Door Unlatch
strike plate device (see Contacts.” Use volt/ohm meter
manufacturer’s instructions). to check continuity between
NO and C terminals while
activating Touch-Tone door
unlatch function. If continuity
test fails, return AT&T Door
Phone Controller for repair.
Cannot open door remotely Check all wiring from AT&T Disconnect wires from the
using remote door open Door Phone Controller to electric terminal block “Remote Open
button strike plate device, also check Button” and “Door Unlatch
operation of electric strike plate Contacts.” Use volt/ohm meter
device (see manufacturer’s to check continuity between
instructions). both wires from the remote
open button while activating
the button. If continuity test of
button is good, button is OK.
Now reconnect button wires to
“Remote Button Contacts,”
and check continuity of “Door
Unlatch Contacts” (between
NO and C) while activating
remote door open button. If
continuity test fails, return
AT&T Door Phone Controller
for repair.
Troubleshooting and Maintenance 7-3