Installation
136
Mitel SMB Controller
syd-0657/2.0 – R6.0 – 09.2018
FXS mode: External audio source
One FXS interface per communication server can be configured for connecting an au-
dio 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.
Fig. 54
Connection for FXS mode: External audio source
Any playback equipment (tape recorder, CD player, etc.) with a line output can be used
as the audio source. It is advisable to merge the left/right audio signal via 2 resistors
(see Fig. 54).
Notes:
– Only the FXS interfaces on the mainboard of the SMB Controller (FXS1...FXS6) support this
feature. FXS interfaces on the card ETAB4 cannot be used.
– The customer is responsible for all copyright matters relating to any music playback.
Tab. 60
Technical data for FXS mode: External audio source
CAUTION
!
The default value of all FXS interfaces is set to
Phone/Fax
. Audio equipment may be damaged by the DC
or AC voltage imposed.
Make sure that the mode of the FXS interface is configured to External audio source before connecting
audio equipment.
Input impedance
approx. 15 k
Ω
Input level
configurable
Input circuit
asymmetrical
Output resistance audio source
< 1 k
Ω
Installation cable
NF cable screened (required for low levels)
a
b
L
R
Gnd
line out
1k
1k
FXS interface