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    UOTEK Industrial Grade RS-232 RS-485 to 8 Ports RS485 Hub RS485 to RS232 RS 485 Asynchronous Half-duplex with Optoelectronic Isolation UT-1208

    • Input interface: RS-232C & RS-485
    • Output interface: 8 ports RS-485
    • Baud rate: 300-115.2Kbps
    • Each RS-485 port can connect with 128 sets device
    • Transmission distance: 5,000m(9,600bps)
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    Overview
    Specs
    Reviews
    Parameter:
    Standards: RS-232/485 EIA/TIA
    Automatic transmit/receive data, no need external flow control signal (RTS), real 3-wire(TXD, RXD, GND) communication
    Input interface: RS-232C & RS-485
    Output interface: 8 ports RS-485
    Baud rate: 300- 115.2K bps
    Each RS-485 port can connect with 128 sets device
    Transmission distance: 5, 000m(9, 600bps)
    LED for indicating PWR, TXD, RXD, E1-E8 activity
    Operating mode: asynchronous half-duplex
    Optoelectronic isolation(2, 500VRMS 500VDC continuous isolated voltage), DC/DC isolated module, RS-485 each wire 600W lightning, surge ±15KV ESD protection
    Connector: Terminal block
    Dimension: 210mm×130mm×32mm
    Operating temperature: -40 to 85
    Relative humidity: 5% to 95%
    Plug & play

    UT-1208 is a RS-485 Hub special designed for RS485 system under complicated electromagnetic field. With dual core and non-stop running, the transmission rate can be up to 115.2KBPS. To ensure the safety and reliability of the communication, it adopts optoelectronic isolation technology on RS-485 ports; this provides surge & lightning protection with the converter & device; the internal optoelectronic isolator and 1, 500W lightning & surge protection circuit provide with 2, 500V isolated voltage to prevent from lightning and ESD. At the same time, it prevents from common-grounded interference. This hub adopts external power; it is quite safe and convenient for outdoor application.

    Under RS-485 working mode, UT-1208 will detect the data flow direction by distinguishing the circuit automatically; at the same time, it will control the circuit by auto switching, this solves RS485 data receiving and transmitting delay problem. The transmission distance of RS-485 port is up to 1, 200m. UT-1208 is widely used in highway toll system, traffic monitoring system and power system.

    UT-1208 RS-485 HUB provides with star topology RS-485 connection, each port supports short circuit, open-circuit protection. Users can easily change RS-485 BUS structure, and cut the network segment to improve the communication reliability. When lightning or the equipment breaks down, the network segment with problem will be isolated, to make sure the other network segment works regularly. This performance enhances the reliability of RS-485 network, and shortens the network maintenance time. Using UT-1208 RS-485 HUB in a right way will help you create a unique and reliable RS-485 system.

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