Installation
129
Mitel 415/430 as of R4.1
syd-0580/1.2 – R4.1 – 08.2016
FXS mode: 2-wire door
In this mode 2-wire door intercoms with DTMF control functions can be connected. The
no-load voltage in this mode is 24 VDC. The loop current is limited to 25 mA.
Fig. 54 Connection for FXS mode: 2-wire door
Tab. 61 Cable requirements for FXS mode: 2-wire door
FXS mode: Control output
If an FXS interface is configured as a control output, the signal can be used to control
external devices or equipment (e.g. heating, alarm or outdoor lighting systems).
The no-load voltage is 24 VDC; the current is limited to 25 mA. A connected relay must
be of the type 24 VDC and must not draw more than 300 mW in power.
There are no special requirements for the cables.
Warning
Control outputs must have a floating connection.
Core pairs
×
cores 1
×
2
Stranded only with lengths > 200 m
Wire diameter, core 0.4 … 0.8 mm
FXS resistance max. 2
×
200
Ω
Line length 0.6 mm diameter max. 3 km
Screening not required
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