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4E1 PDH Multiplexer

1-4E1 Fiber Optical Multiplexer is a kind of fiber-optic communication device which can use fiber to transport 1~4 E1 signal in the meantime efficiently and can test the used E1 automatically. The flexible circuit test and the indication function has a simple single panel form, which provides a office phone port (optional) and 1-2 channel RS232 (optional), raising applied flexibility also in the meantime enlarge the utilization of the fiber optic.

Description

1-4E1 Fiber Optical Multiplexer is a kind of fiber-optic communication device which can use fiber to transport 1~4 E1 signal in the meantime efficiently and can test the used E1 automatically. The flexible circuit test and the indication function has a simple single panel form, which provides a office phone port (optional) and 1-2 channel RS232 (optional), raising applied flexibility also in the meantime enlarge the utilization of the fiber optic.

Features

n  Offer 4 × 2Mb/s digital interfaces

n  Up to 4 E1 links on one fiber

n Management through Console port

n The supervisory control interface implements centralized monitoring and export the monitor and control information of this port and opposite port

n  One link to service telephone for duty contract

n  1-2 channel RS232 can be chosen for option

n -48v DC power options and the positive and negative of DC-48V can be optional because there is the self-test circuit for the polarity inside th1e device

n  Mini type or standard 19 inches rack, little volume, light weight, steady capacity and convenient setup

n  Digital clock recovery circuit and digital smooth DPLL adopted for 2.048Mb/s port

n  LED indicators

 

Parameters

     Fiber interface

Optical wavelength: 1310nm/1550nm(single-mode

                               850nm/1310nm(multi-mode) for option

Optical interface: SC/FC for option

Sending consumption: -9dBm/-5dBm

Receiving and dispatching module: >-6dBm

Optical receiver receiving sensitivity: <-36 (BER<10)

Optical code: NRZ

Transmitting range: MM0~2Km; SM 0~120Km for option

 

  E1 interface

Interface code: HDB3 code

Line speed: 2.048Mbp/s±50ppm

Interface standard: ITU-T G 703

Interface impedance: 75Ω/unbalanced (BNC)

Dimension

Mini type: 212mm(L)×138 mm(W)×30 mm(H)

19 inch type: 483mm(L)×138 mm(W)× 44 mm(H)


Power supply

AC220V: input voltage AC180V~260V

DC-48V: input voltage DC-36V~-72V  

 

Operation Condition

    Voltage: AC180V ~ 260V; DC –48V; DC +24V

      Consumption: ≤5W

      Operating temperature: 0°C~50°C

      Storing temperature: -40°C~+70°C

      Relative humidity: 95 % 

      Without disturbance of erosive and solvent gas, raising dust or strong magnetic field

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