Description

The 4FXS module supports CooVox-U50/U100V1, U80,U50/U100V2 IP Phone System with 4 RJ11 ports for line connection. Each port has
one LED(Light-Emitting Diode), which is assembled on the main board.
The LED indicates port status:

• Solid = Module loading successful
• Blink = Channel Ringing

If LED is off, the module loading is failed

Environmental Operation Information :

• Temperature: 0°C ~ 40°C
• Humidity: 5% ~ 95% Non-Condensing

Physical Dimensions :

• 88.5 x 132mm

Certifications CE / FCC / RoHS

NOTE :

FXS is an interface that connect to a station, such as an analog telephone or the FXO interface of
another PBX. It provides ringing voltage and battery to the FXO devices. FXS interfaces are used on
the inside of your PBX, they do not connect directly to the PSTN. One FXS channel is required for
each telephone that you wish to connect to your Asterisk system.
The Analog Station FXS board provides connectivity to standard analog phones. Typically, a phone is
connected to a station interface and is, by default, in an on-hook state. When the phone goes offhook,
the phone completes the line circuit and current flows through the line.
The Analog Station Interface 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