Installation
126
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011
Fig. 58
Connection for FXS mode: Two-wire door
Tab. 66
Cable requirements for FXS mode: Two-wire door
FXS mode: External audio source
One FXS interface per communication server can be configured for the connection
of audio equipment. 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 (announce-
ment prior to answering), voice mail greetings or for "Music on hold" and then to
store it as a wave file.
Fig. 59
Connection for FXS mode: External audio source
Core pairs
×
cores
1
×
2
Stranded
only for lengths > 200 m
Wire diameter, core
0.4 … 0.8 mm
FXS resistance
max. 2
×
200
Ω
Line length for a wire diameter of 0.6 mm
max. 3 km
Screening
not required
a
b
FXS interface
a
b
L
R
Gnd
line out
1k
1k
FXS interface