Installation
Table 56: Cable requirements for FXS mode: Phone/fax
Ports FXS1...FXS6 Ports of interface cards
(ETAB4)
Core pairs x cores 1 x 2 1 x 2
Stranded only with lengths > 200 m only with lengths > 200 m
Wire diameter, core 0.4 … 0.8 mm 0.4 … 0.8 mm
FXS resistance max. 2 ´ 625 W max. 2 ´ 250 W
Line length 0.6 mm diameter max. 10 km max. 4 km
Screening not required not required
Figure 49: Specification for FXS mode: Phone/fax (used for USA/Canada only)
4.7.3.3.1.2 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.
Release 7.1
System Manual for Mitel SMB Controller 142
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