2.7.6.2 Programmable Door Phone
This type of door phone contains additional functionality allowing it to operate without the use
of the relays on the
eircom
advantage
1200
.
The range of functions available on this type of
door phone (listed below) may vary depending on the door phone model and type.
Typical Functions available on a programmable Door phone
DTMF Receiver / Generator
Busy Tone Detector
Hotline Operation
Integrated Locking Relay
Speaker Volume control
Wiring of a programmable doorphone Unit
The two contacts of the Door Phone button have to be wired to the A and B contacts of the
analogue extension port being used as Door Phone (see diagram below). In this
configuration, the extension connected to the door phone unit should be programmed for
hotline operation in browser based programming.
As soon as the door phone button is pressed, the extension/group or external number
programmed in the hotline feature will ring and on answering the call , the user simply needs to
dial the door opening code to fire Relay 2 and open the door lock.
(*) If a relay on the doorphone is being used to open the lock, then the code for opening the
relay will be supplied by the doorphone technical manual.
Note
: When the called party programmed to ring for hotline operation clears down, busy tone
will be given to the doorphone. Some doorphones must be programmed in this case to detect
busy tone and return to the idle condition. ( See 2.4.4 for busy tone timing )
Doorphone Unit
Doorphone
Button
Analogue extension ports
( 19 – 22 )
●
