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      Hello, Welcome to FCTEL Technology Co.,Ltd
      National service hotline:+086 0571-87007055/56/57 CN

      WE ONLY FOCUS ON TRANSMISSION AND ACCESS

      Products center

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

      Type:FCC-E1tD1/R1/Q1279 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

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

           interface Loop Back(REM)
      ?  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 


      DataSheet Download
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