Products Catalog

Specification

Detailed product description
4E1 PDH multiplexer developed based on the VLSI chips, it realize multiplex and optical transmission of 4 E1 citcuits. It holds the function of order wire phone and user’s extension channels.

Technology Features:
Supplies 4 E1 transparent transport
Fiber line bit rate is 150Mbps
Self-contained alarm function, supervises the 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
AC220 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/40K m/60Km/120Km 40Km

E1 interface
Bit rate: 2048Kbps±50ppm
Impedance: 75© unbalanced(120ohm balanced optional, please declare in advance if you need balanced one)
CodingHDB3,according to ITU-T G.703

Order wire phone:
Ordinary 2 line phone
64Kbps PCM coding
When local terminal pick up the phone, remote terminal ring and local terminal ring back tone
Any terminal hang up, remote terminal shows busy
It will have howler tone when remote terminal hang up and local terminal doesn’t 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%, non-condensing

Other characters:
Dimension: 483mm×44mm×180mm

OEM SERVICE OFFERED