The “redundant wire” is also known as the “reinforced wire”, which is a shortened term for “field reinforcement wire”. It is a single communication wire composed of several thin copper wires and steel wires twisted together as the core, and an insulating layer is wrapped around the core. Its main features are light weight, easy portability and storage, certain flexibility and mechanical strength, cold resistance, heat resistance, wear resistance, and the ability to be reused. It is mainly used for temporary short-range and small-capacity communication during military operations, mining, exploration and other outdoor operations.

The BH-MUX600D series equipment supports the mixed transmission of various services such as program-controlled automatic dialing, magnetic phone, isolated network, E1, RS232/485, etc. The uplink port supports three transmission interfaces: multiplexed trunk line, optical fiber, and E1. It is a portable device integrating trunk line remote transmission equipment, field optical transceiver, and PCM multiplexing equipment.

Product Features:

Flexible networking capability, supporting dual-homing / optical fiber / E1 for the uplink.
When using optical ports for transmission: Ethernet bandwidth is line-speed 100 Mbps/1 Gbps. When using dual-line transmission: The bandwidth of E1/telephone lines is deducted and automatically allocated to the Ethernet.

Rich status indicator lights;

Provide 2 E1 interfaces

Provide two 1+1 redundant optical interfaces (optional)

Supports 8/16/30 FXO/FXS/stone phone/HOT/RS232 interfaces;

Provide 4 Ethernet interfaces (regardless of whether it is fiber optic transmission or twisted pair transmission, no need to reinsert or replace the network interface)

Three power supply options are available: AC220, DC-48, and DC24V.

Modular design, 1U height, 19-inch wide standard chassis.

Technical Specifications:

1. Optical Interface

· Rate: 150 Mb/s ± 50 ppm (Rate of 1.25 Gb/s for Gigabit network optical interface ± 50 ppm)

· Output optical power: ≥ -10 dBm

·Receiving sensitivity: ≤ -30 dBm

· Optical wavelength: 1310nm/1550nm

· Optical interface connector: SC/FC

2. 2M Interface

· Baud Rate: 2048Kbps ± 50ppm

· Code type: HDB3 code, in compliance with G.703 standard

· Input impedance: 75 ohms (unbalanced interface)

· Frame structure: Conforms to ITU G.704, G.706

· Compression rule: Conforms to ITU G.71

· Level: ±2.37V ±10%

3. FXS and FXO Interfaces

· Impedance: 200Ω + 680Ω || 0.1μF (for FXO)

· 200Ω + 560Ω || 0.1μF (for FXS)

· Frequency Characteristics: 300 – 3400Hz (-0.6 – +3dB)

· Physical interface: RJ45 or terminal post.

4. Magnet interface

· Impedance: 600Ω

· Audio range: 300 – 3400Hz

· Compression ratio: A-law in ITU G.71

· Return loss: lower than 18 dB

· Physical interface: RJ45 or terminal post.

5.Working environment

· Working temperature: -15°C ~ +65°C

· Working humidity: <= 90% (without condensation)