The ZYCOO CooVox 2FXOS Module applies to CooVox-U50/U80/U100 IP Phone System with 4 RJ11 ports for connection. Each port has one LED(Light- Emitting Diode), which is assembled on the main board.
FXS— LED indicates port status:
> Solid = Module loading successful
> Blink = Ringing FXO— LED indicates port status:
> Solid = Module loading successful
> Blink = Ringing If the LED is off, the module is loading failure.
The Analog Station Interface(FXO) provides the following features:
•Ring Generation and Ringing Trip
•Loop Closure Detection
•Loop Disconnect
•Loop Reversal
•Loop Voltage and Current Monitoring
•On-hook and Off-hook Transmission
•Hook-flash Detection
•DTMF Signalling
•Programmable Audio Gain
•On-board Power Generation
•Constant Loop Current: 20mA