Sell 4e1+100m Pdh Equipment

Main Feature:

Supplies 4 transparent E1 and one linear speed Ethernet channel.

Fiber line bit rate: 150 Mbps, distance: 40-120Km

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

Ethernet interface supports VLAN

All necessary alarm functions, 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

AC 220 or DC -48 is optional

Parameters:

Optical interface:

E1 interface:

Bit rate: 2048kbps ± 50ppm

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

Line code: 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. 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 conditions:

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

Power consumption: 5W

Environment temperature: 0℃-50℃

Humidity: 95%, uncondensation