2E1 transmission 64 channel telephone pstn line extender pcm multiplexer

2xE1-60*Voice E1 PCM Multiplexer

Overview

This device is 1U High, which provides telephone outputs 60, Equipment electrical part for the whole digital circuits, machine reliability, stability, low power consumption, high integration, small size, easy installation and maintenance. Many customers are telecommunications operators 2*E1 leased lines used in computer networking, this equipment can be rented at the E1 line opened a few line phone, you can make free calls between headquarters and branch offices of this.

Features

Ø  Based on proprietary integrated circuits;

Ø  Alarm status can be monitored on the end;

Ø  2*E1 interface complies with G.703, all-digital clock recovery and smooth phase-locked technology;

Ø  Support FXO voice port FXS ports and ports, EM2 / 4 audio interface, FXO port and PBX docking port and the user is connected to FXS telephone;

Ø  60 line voice access, support caller ID function and reverse polarity billing  functions;

Ø  Support Telephone Number mutual function of each site;

Ø  E1 signal can be detected as a barrier to the end device is lost or shut E1;

Ø  Support Console manager and SNMP agent manager inside

Ø  Multiple power mode options: AC220V, DC-48V/DC+24V, etc;

Parameters

uE1 Interface

Interface Standard: comply with protocol G.703;
Interface Code: HDB3;

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

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

Allowed Attenuation: 0~6dBm

Interface Rate: n*64Kbps±50ppm;

uFXS Phone Interface

Ring voltage: 75V

 Ring frequency: 25HZ

 Two-line Impedance: 600 Ohm (pick up)

 Return loss: 40 dB

u FXO Switch Interface

Ring detect voltage: 35V

Ring detection frequency:  17HZ-60HZ

Two-line Impedance: 600 Ohm (pick up)

 Return loss: 40 dB

u EM 2/4 Line

AD: 0dB

DA: 0dB

Two/Four-line Impedance: 600 Ohm

Return loss: 20 dB

u 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)

Specifications 

Network solution