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


Products center

Co-Directional 64K-V.35 Converter

Type:FCC-E1tV1 Message

Description:Co-Directional 64K-V.35 Converter, V.35 rate 64K

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.

            64K-V.35/V.24interface converter provides the physical layer conversion between ITU-T co-directional 64K G.703 standard E1 interface and standard V.35/V.24 interface. It provides secure and seamless connectivity for communication between different interface device in the network. The E1 channel timeslots of the transmission device are available for use. Device that needs to be transmitted data only be V35/V24 output. The data interface mode is DCE, which can be docked with the DTE or DCE device.

Functional Properties

Ø Based on self -copyright  IC

Ø   Provide 2 clock types: Co-Directional G.703 master clock and G.703 line clock;

Ø   Have two Loop Back Mode: G.703 interface Loop Back , V.35 interface Loop Back

Ø   Have pseudo random code test function, easy the installation

Ø   Support 120 Ohm balance;

Ø   V.35 interface supports hot-plug

Ø   Provide 3 clock types: Internal clock, External clock,E1 line clock;

Ø   AC 220V, DC-48V, DC+24V, DC Power and Polarity-Free

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   V.35/V.24 interface 

    Interface rate:              64Kbps
    Interface Standard:     

    Compatible with V.35/V.24 standard

    Connector:                  DB25

    Connect Mode:         DCE

    Clock Type:                G.703 internal clock, external clock

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


DataSheet Download