User guide
Doortel 4
Issue 1.01
Page 3
Description
The doorstation with telephone line interfa
ce DOORTEL
4 can be connected to standard
analogue T/R extension lines of any PABX. The unit is delivered in four different versions:
the BG version for installation behind existing panels, the MD version with a designer
aluminium case, the AV version with a vandal proofed aluminum panel and the ES
version with a stainless steel casing. All versions can have up to four bell chime button.
The ES Version has only three button in his standard version.
The connection of the doorstation to the telephone switch is done using two wires.
Further a 12 Vac power supply is needed for the door opener and the illumination lamp
in the doorstation. For this another two wires are necessary. We suggest in any case to
provide an illumination of the doorstation as the lamps heat will ensure that the
condensing water formation and a too low operating temperature can be prevented.
Please take care that in some extrem enviroment situations the unit might need an add
on heating element. The device is deliverd with microphone and loudspeaker. The
volume of the loudspeaker and the microphone can be regulated.
The unit is activated using the bell buttons. Herefore a galvanic, powerless contact is
needed. Please take care that the activation LED will be lit only when the device is busy.
After the closing of one of the buttons contact the device will size the line, the red LED
will be lit, and the programmed telephone number is dialed using the selected mode:
rotary dial or DTMF. The telephone numer is programmed using a DTMF dial procedure.
The digits 0 to 9 and the special DTMF code * and # can be programmed as part of the
telephone number. Using the same DTMF dial procedure also all other programmations
are done. Only the setting for the dial mode, the hardware timer and the auto answer
are done using jumpers on the board.
If needed the
DOORTEL 4
doorstation with telephone line interface can also be called.
As soon as the first call signal is recognized the unit will answer the call. After this an
acknowledge tone is sent to the caller.
During the connection using a DTMF dial pad telephone a door opener contact can be
activated dialing the "7". With the digit "8" a second optional contact can be activated.
The contacts are activated for a programmed time. And the end of this time the
connection is terminated automatically. This function can be deactivated using the
programming functions.
The connection will be terminated as soon as a busy tone is surley detected. The
DOORTEL 4
can be released, without opening the door, dialing the DTMF digit "3"
during the connection. If the called party doesn't answer the unit will drop the
connection after 7 ringback tones. For the enhanced security the unit has also a
hardware timer. This will ensure that the connection is terminated in any case after the
time out. The time out can be set to 1, 2 or 4 minutes using jumper which can be find
inside the unit.
The optional second contact, which is installed externally to the unit, can be
