Installation
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 Connection 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.
Note:
• 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.
Table 58: Technical data for FXS mode: External audio source
Input impedance approx. 15 kW
Input level not configurable
Input circuit asymmetrical
Output resistance audio source 1 kW
Release 7.1
System Manual for Mitel SMB Controller 144
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