ONE100 - Installation Manual
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4.7
FXS Analog Interface
The FXS interface enables the connection of up to 4 or up to 8 analog telephone
lines thus providing up to 8 analog voice interfaces.
The connection of the FXS interfaces is done via RJ45 connectors (1 connector per
FXS).
4.7.1 Characteristics
•
Line impedance: 600
Ω
or complex,
•
Frequency range of the ringing signal: 16Hz to 70 Hz,
•
Voltage of the ringing signal: > 37,4VRMS for a load of 1 REN (6,93K + 8µF
@ 20Hz) in the frequency range,
•
Line current: 27 mA max. for a line resistance <1000
Ω
,
•
Polarity inversion of the TIP and RING pins,
•
Line current <2mA in the power-down mode,
•
Q.23
dialing.
•
Ringer Equivalency Number (REN): 1
4.7.2 Connector
Pinout
The connection to the analog voice interface is made on the rear panel via an RJ45
connector. The connector pinout is as follows:
Pin
Signal
Pin
Signal
1 NC
5 TIP
2 NC
6 NC
3 NC
7 NC
4 RING
8 NC
4.7.3 Cables
The cable used for a connection toward a analog phone is an unshielded cable
including 1 twisted pair.
The ONE100 with FXS interfaces has got a screw marked located on the
rear panel. This must be permanently connected to the main protective
earth.
