User guide
Doortel 4
Issue 1.01
Page 4
programmed also for an automatic mode. Is this case the contact is activated as soon
the line is sized, for all the seizure time, or just for the duration of 2 seconds. Herewith
videocameras, or similar devices, can be activated together with the unit. For the second
contact a relais unit
1471
,
1471E
or
1472
has to be installed. Furthermore the unit has
to be powered with a 12 Vac/dc supply.
Features
- Up to four bell buttons. Each button can be programmed with a 1 to 5 digit long
number dial
- Programmation using DTMF tones
- Programmable contact activation time
- Settable auto answer function
- High quality handsfree speach controlled unit
- Tone detection
- Volume regulation for loudspeaker and microphone
- With DTMF dial controlled door opener contact
- Optional external second relais (1471, 1471E or 1472) for the comand of videocameras
or a similar devices
- Line disconnect with DTMF dial
- Automatic line disconnect after door opening (programmable)
- Connection to any PABX T/R analogue extension line
- DTMF or rotary dial selectable
- Programmable time out timer
- External LED connectable
