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