System interfaces
53
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
2. 3. 2 Interface for door intercom system
There are different ways of connecting door intercom systems:
• Using an options card ODAB (only Mitel 415/430)
• Using an ordinary analogue terminal port
In a connection using an options card, the equipment or installation is controlled via re-
lays and a control input on the options card.
In a connection using an analogue terminal port the TFE must be capable of sending
and receiving DTMF signals as the control is effected acoustically via a speech path.
A bell key is backed by an internal destination. The door intercom system can be ad-
dressed via an internal number.
A loudspeaker system can also be operated via the interface for door intercom sys-
tems.
See also:
"Special interfaces" Chapter in the Mitel 415/430 or Mitel 470. System Manual
2. 3. 3 Interface for General Bell
Calls can also be routed to the general bell. Bells or lamps connected to the general
bell interface signal calls which can be answered by anyone from any user’s phone.
Coded ringing can be used to assign different ringing patterns to different destina-
tion persons or groups and, in this way, create a simple type of paging system.
Tip:
One analogue terminal interface per communication server can be reconfigured in such a way
that it is also used for connecting a general bell. This eliminates the need for an external ringing
voltage source.
See also:
"Special interfaces" Chapter in the Mitel 415/430 or Mitel 470. System Manual
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