Product Description:

8E1 PDH Multiplexer is developed based on the VLSI chips,it realizes multiplexe and optical transmission of 8 E1 circuits .It holds the function of orderwire phone and user's extension channels.

Technology Features:

Supplies 8 E1 transparent transport

Fiber line bit rate is 150Mbps

All necessary alarm functions,supervises the real-time status of remote terminal

The orderwire phone uses the ordinary telephone

As the remote terminal device,making up of the star-network with the rack device

Supplies RS232 network management interface

Supplies one user RS232 transparent data channels

Single board design, 1U, and 19 Inch standard

AC 220 or DC-48 is optional

Interface Parameters:

Optical interface:

E1 Interface:

Bit rate:2048Kbps±50ppm

Impedance:75Ω unbalanced(120ohm balanced optional, please declare in advance if you need balanced one)

Coding:HDB3,according to ITU-T G.703

Orderwire phone:

Ordinary 2 line phone

64Kbps PCM coding

When local terminal pick up the phone, remote terminal ring and local terminal ring back tone

Anyone terminal hang up, remote terminal shows busy

It will have howler tone when remote terminal hang up and local terminal doesnt in one minute

Working Condition :

Input voltage range : -48V,permit -36V~-72V(DC);220V,permit 165~264(AC)

Power Consumption : 5W

Environment Temperature : 0-50

Humidity:95%,uncondensation

Other Characters:

Dimension:483mm×44mm×180mm

Weight:2Kg