Installation
Figure 50: Connection for FXS mode: 2-wire door
Table 57: Cable requirements for FXS mode: 2-wire door
Core pairs x cores 1 x 2
Stranded only with lengths > 200 m
Wire diameter, core 0.4 … 0.8 mm
FXS resistance max. 2 ´ 200 W
Line length 0.6 mm diameter max. 3 km
Screening not required
4.7.3.3.1.3 FXS mode: External audio source
One FXS interface per communication server can be configured for connecting an audio device. In this
mode the FXS interface becomes an audio input that can be used for the following purposes:
• to play music or an announcement to connections with callers on hold ("Music on hold" function).
• to play music or an announcement for the announcement service (announcement prior to answering),
voice mail greetings or for "Music on hold" and then to store it as a wave file.
Figure 51: Connection for FXS mode: External audio source
Release 7.1
143 System Manual for Mitel SMB Controller