8E1+4FE 1+1 PDH Multiplexer

Product Description

This device  provides 1-8Channel E1 interface, master optical fiber interface and backup optical fiber interface, 1-4Channel 10M/100M Ethernet interface (Line Rate 100M) and 2 expansion interface. 4Channel Ethernet interface is switch interface, can support VLAN. 2 expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data, voice signal, 2/4 line E&M audio signal, switch signal, Ethernet signal (Bandwidth 2M). It is very flexible. It has alarm function. The work is reliable, stable, and low power consumption, high integration, small size.

Functional Properties

Ø Based on self -copyright  IC

Ø   Modular wide dynamic optical detector

Ø   The device provides master optical fiber interface and backup optical fiber interface, Dual Optical Port     

      backup function ensures that the work will never break

Ø   Ethernet interface rate is 10M/100M, half/full duplex auto- Negotiation

Ø   4Channel Ethernet interface is switch interface, support VLAN, can set to 4 channel logical isolation

Ø   E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology

Ø   1Channel PCM digital business phone (optional)

Ø   When optical lose signal, it can detect the remote device is power off or fiber is disconnected, and indicates  alarm by LED

Ø   The local device can view the remote device working condition

Ø   Provide 2 expansion interface, you can extend 1~2Channel asynchronous data, such as  RS232/RS485/RS422/Manchester code;

       1~2Channel voice,1~4Channel switch , or two/four line audio and  so on

Ø   Provide command the remote interface Loop Back, ease line maintenance

Ø   The transmission distance is up to 2-120Km without interruption

Ø   AC 220V, DC-48V, DC24V can be optional

Ø   DC-48V/DC24V power supply polarity detection function, Polarity-Free

Technical Parameters

u  Fiber

         Multi-mode Fiber

    50/125um, 62.5/125um,

    Maximum transmission distance: 5Km @ 62.5 / 125um single mode fiber, attenuation (3dbm/km)Wave Length: 820nm

    Transmitting power: -12dBm (Min) ~-9dBm (Max)

    Receiver sensitivity: -28dBm (Min)

    Link budget: 16dBm

        Single-mode Fiber

    8/125um, 9/125um

    Maximum transmission distance: 40Km

    Transmission distance: 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km)

    Wave Length: 1310nm

    Transmitting power: -9dBm (Min) ~-8dBm (Max)

    Receiver sensitivity: -27dBm (Min)

    Link budget: 18dBm  

u  E1 Interface

    Interface Standard:      comply with protocol G.703;
    Interface Rate:             n*64Kbps±50ppm;
    Interface Code:            HDB3;

    E1 Impedance:             75Ω (unbalance), 120Ω (balance);

    Jitter tolerance:            In accord with protocol G.742 and G.823

    Allowed Attenuation:   0~6dBm

u Ethernet interface (10/100M)

    Interface rate:              10/100 Mbps, half/full duplex auto-negotiation

    Interface Standard:      Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

    MAC Address Capability: 4096

    Connector:                  RJ45, support Auto-MDIX

u   Power

    Power supply: AC180V ~ 260V；DC –48V；DC +24V

    Power consumption: ≤10W

u   Dimension          

    Product size:  19 inch 1U   485X138X44mm(WXDXH)

    Simple packaging:  522X198X82mm(WXDXH)

    Piece weight: 3KG

 u  Working environment

    Working temperature: -10°C ~ 50°C
    Working Humidity:        5%~95 % (no condensation)

    Storage temperature:   -40°C ~ 80°C
    Storage Humidity:         5%~95 % (no condensation)

Application Scheme