16 Channel Voice over E1 PCM Multiplexer

This device provides 16 phone ports and it’s highly flexible in its application. The device is based on a fully digital circuit, resulting in reliable and stable operation, low power consumption, high integration, small size, and easy installation and maintenance.

● E1 interface complies with the G.703 recommendation, using fully digital clock recovery and smooth phase-locked loop technology.

● Voice port supports FXO and FXS, where the FXO port is connected to the PBX and the FXS port is connected to the user’s telephone.

● It supports caller ID display and reverse polarity billing functions.

● It supports mutual dialing between different sites.

● It’s able to detect when the E1 signal is lost due to power outage or E1 failure on the remote device, and indicate the alarm through indicator lights.

● It provide two types of clock: E1 master clock, E1 line clock;

● Multiple power supply options are available: AC220V, DC-48V/DC24V, etc.

● The DC-48V/DC24V power supply has an automatic polarity detection function, and there is no need to distinguish between positive and negative poles during installation.

● E1 Interface

Standard: comply with protocol G.703;

Rate: n*64Kbps±50ppm;

Line Code: HDB3;

E1 Impedance: 75Ω (unbalance), 120Ω (balance);

Jitter Performance: In accord with protocol G.742 and G.823

Input Port Attenuation Allowed: 0~6dBm

● FXS Phone Port

Ring voltage: 75V

Ring frequency: 25HZ

2-wire Impedance: 600 Ohm (off-hook)

Return loss: 40 dB

● FXO Trunk Port

Ring detection voltage: 35V

Ring detection frequency: 17HZ-60HZ

2-wire Impedance: 600 Ohm (off-hook)

Return loss: 40 dB

● EM 2/4 Wire

AD: 0dB

DA: 0dB

2/4-wire Impedance: 600 Ohm

Return loss: 20 dB

● Working Environment

Working temperature: -10°C ~ 50°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ 80°C

Storage Humidity: 5%~95 % (no condensation)