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    Co-Directional 64K-RS232/422/485 Converter

    Type:FCC-E1tD1/R1/Q1 Message

    Description:Co-Directional 64K-RS232/422/485 Converter, Serial port rate 0-14.4K

    Product Description

              The G.703 (Co-Directional G.703) interface divides 64Kbps cycle into 4 unit intervals, it uses“0101” represent  “0”, “1100” represent “1". By alternating transformation polarity of the adjacent block, binary signals convert three-level signals. In every 8th group destroyed block of alternating polarity, thus to transmit 8KHz timing signal. By the above coding, G.703 co-directional 64Kbps signal could achieve transmitting the timing signal of 64KHz and 8KHz and 64KHz and the data signal of 64Kbit/s in the same direction with a pair balanced line.

               This interface converter provides one co-directional G.703 interface and one Ethernet interface to achieve 10/100Base-T Ethernet data transmission on the G.703 channel. It is a high performance, self-learning Ethernet bridge. This device is the extension device of Ethernet, using network (PDH/SDH/Microwave) that provide G.703 channel to achieve local and remote Ethernet interconnecting with serial interfaces at a lower cost. The device has inter-set loop test function to facilitate the project launching and daily maintenance.


    Functional Properties

    Ø  Based on self -copyright  IC
    Ø  Can Realize Ethernet data transmission in one Co-directional G.703 circuit
    Ø  Inter-set dynamic Ethernet MAC address (4,096) with local data frame filtering
    Ø  The local device can manage the remote device
    Ø  Have the function of G.703 loop back check, and indicate on LED
    Ø  Can differentiate the reason of Co-directional G.703 lose signal is that the remote device power-off or directional G.703 line broken
    Ø  Ethernet interface supports 10M/100M, half/full duplex auto- adaptable, supports VLAN
    Ø  Ethernet interface supports AUTO-MDIX (crossed line and straightly connected line self-adaptable );
    Ø  Provide 2 clock types: Co-Directional G.703 master clock and G.703 line clock;
    Ø  The local device can forced the remote device rate follow it(when the device is unframed mode, that is invalid)
    Ø  Have three Loop Back Mode: G.703 interface Loop Back (ANA)、Ethernet interface Loop Back(DIG)、Command the remote Ethernet

         interface Loop Back(REM)
    Ø  Support self-adaptable 120 Ohm balance;

    Technical Parameters
    u   Co-Directional G.703 Interface  

        Interface Standard:      comply with protocol ITU-T G.703;

        Interface Rate:             64Kbps±50ppm;
        E1 Impedance:             120Ω (balance);
        Jitter tolerance:            In accord with protocol G.742 and G.823
        Maximum Transmission Distance: up to 500m
    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 :       216X140X31mm( WX DXH))

        Simple packaging : 274X193 X84mm ( WX DXH)

        Piece Weight: 1.2KG

    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

    Applications 


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