Introduction

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

◆   based on proprietary integrated circuits;
◆   Alarm status can be monitored on the end;

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

◆   Voice port support FXS/FXO/2 wire audio interfaceFXO port connect to PBXFXS port connect to user side telephone.

◆   60*voice access support caller ID function and reverse polarity billing  functions;
◆   Support Telephone Number mutual function of each site;
◆   E1 signal can be detected as a barrier to the end device is lost or shut E1;
◆   Support Console manager and SNMP agent manager inside

◆   Multiple power mode options: AC220V DC-48V/DC+24V etc

Parameters

◆   E1 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;
◆   FXS Phone Interface
Ring voltage: 75V
Ring frequency: 25HZ
Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB

◆   FXO Switch Interface 

Ring detect voltage: 35V
Ring detection frequency: 17HZ-60HZ
Two-line Impedance: 600 Ohm (pick up)
Return loss: 40 dB
◆   EM 2/4 Line
AD: 0dB
DA: 0dB 
Two/Four-line 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)