Detailed Product Description

Product Description:

   4E1+100M PDH Multiplexer is developed based on the VLSL chips,it realizes multiplexing and optical transmission of 4 E1 circuits and one 100M Ethernet data channel,it holds the function of orderwire phone and user's extension channels

Technology Features:

  Supply 4  transparent  E1 and one 100M wire speed  Enternet

  Fiber line bit rate is 150Mbps

  Ethernet interface supports automatic negotiation feature,full duplex/half duplex and 10M/100M working mode

  Ethernet interface supports VLAN

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

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

  Supply RS232 network management  interface

  Supply one user RS232 transparent data channel

  Single board design, 1U, and 19 Inch standard

  AC 220 or DC-48 is optional

Interface Paramters:

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 

Ethernet interface:
   10M/100M through auto-negotiation
   Full/Half duplex through auto-negotiation
   Connector: RJ-45

Orderwire phone:

  Ordinary 2 lines 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