Voice Multiplexer,E1 PCM 30 provides 30 channels of voice signal through E1 channel to realize extension of telephone lines

 

Voice Multiplexer,E1 PCM 30 provides 30 channels of voice signal through E1 channel torealize extension of telephone lines Features

     Monitoring remote device from local device (2 row indicator LED, upper indicates local, lower indicates remote

     Based on self copyright IC

     Provides 30 channels of voice signal and supports call indication and opposite pole charging

    Supports function of signal transmission among all end points

     Voice port supports O port and S port, O port connecting with exchange and S port with users telephone

 

 

 

Parameter & Index

   E1 interface

Standard:               conforms to G.703 standard.

Coding:                HDB3

Interface rate:    2.048Mbps±50ppm

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

Connector:           BNC (75Ω), RJ45 (120Ω)

Jitter Performance: according to G.742 and G.823

Clock:                  internal clock, line clock.

 

 FXS Telephone Port

Ring voltage:              75V

Ring frequency:            25HZ

2 line input impedance:      600Ω (hanging off)

Wastage:                  40db

 

 FXO Exchange Port

Ring detecting voltage:       35V

Ring detecting frequency:     17HZ-60HZ

2 line input impedance:       600Ω (hanging off)

Wastage:                   40db

Voice Multiplexer over E1