8E1 PDH Multiplexer(4E1,8E1,16E1)

Detailed 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:

NAME OPTION STANDARD
Transmit Mode Single/ Multi-mode Single Mode
Module Single/Double Fiber Double Fiber
Interface FC/SC/ST FC
Wavelength 1310nm/1550nm 1310nm
Distance 2Km/40Km/60Km/120Km 40Km


E1 Interface:

Bit rate:2048Kbps?0ppm

Impedance:75?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?4mm?80mm

Weight:900g