I-7510: Isolated RS-485 Repeater
I-7510A: Isolated RS-422/485 Repeater/Converter
I-7510AR: Three Way Isolated RS-422/485 Repeater/Converter
I-7510P: Three Way 5 kV Isolated RS-485 Repeater

The I-7510/I-7510A provides 2-way optical isolation between one piece of RS-422/RS-485 equipment and the rest of the system. It can also be used as a repeater to extend the transmission of an existing network. Additionally, an RS-485 system can be expanded beyond the 256 node limitation imposed by the standard. It can also be used to convert a four-wire RS-422 signal into a 2-wire RS-485 signal, and vice versa.

The I-7510AR is exactly the same as the I-7510A, except for the isolation side. The isolation side of the I-7510A is located in the input interface circuit, but the isolation side of the I-7510AR is located in the input and output interface circuit. In other words the I-7510AR is 3-way isolation repeater module.



Request For Quotation





    • Automatic RS-485 Direction Control
    • 3-way 3000 VDC Isolation Protection for I-7510AR
    • Transmission Speed of up to 115200 bps
    • Operating Temperatures, -25 °C ~ +75 °C
    • 2-way 3000 VDC Isolation Protection for I-7510/I-7510A
    • ESD Protection for RS-485 Data Line
    • Power Input, +10 ~ +30 VDC
    • DIN-Rail Mounting
    • 3-way 5000 VDC Isolation Protection for I-7510P
      (IEC 60664-1 section


    Hardware Specifications

    Models I-7510 I-7510P I-7510A I-7510AR
    Serial Interface RS-422 TxD+, TxD-, RxD+, RxD
    The RS-422 and RS-485 cannot be used simultaneously
    RS-485 Data+, Data-
    Transmission Distance Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps
    (Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
    Self-Tuner Asic Inside Yes
    Speed 300 ~ 115200 bps
    ESD Protection Yes
    Isolated Voltage 2-way 3 kV Isolated 3-way 5 kV Isolated 2-way 3 kV Isolated 3-way 3 kV Isolated
    Connector Removable 10-Pin Terminal Block x 2
    LED Indicators
    Power/Communication Yes
    Input Voltage Range +10 VDC ~ +30 VDC +12 VDC ~ +48 VDC +10 VDC ~ +30 VDC
    Power Consumption 2.2 W
    Casing Plastic
    Dimensions (W x H x D) 72 mm x 122 mm x 35 mm
    Installation DIN-Rail Mounting
    Operating Temperature -25 °C ~ +75 °C
    Storage Temperature -30 °C ~ +80 °C
    Humidity 10 ~ 90% RH, non-condensing

    Hardware Structure

    Block Diagram

    Pin Assignment


    Ordering Informations

    I-7510 CR Isolated RS-485 Repeater (RoHS)
    I-7510-G CR Isolated RS-485 Repeater (Gray Cover) (RoHS)
    I-7510A CR Isolated RS-422/485 Repeater/Converter (RoHS)
    I-7510A-G CR Isolated RS-422/485 Repeater/Converter (Gray Cover) (RoHS)
    I-7510AR CR Three Way Isolated RS-422/485 Repeater/Converter (RoHS)
    I-7510AR-G CR Three Way Isolated RS-422/485 Repeater/Converter (Gray Cover) (RoHS)
    I-7510P-G CR  Three Way 5 kV Isolated RS-485 Repeater (Gray Cover) (RoHS)