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Converter & Reapater Module
I-7520U4
  
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Isolated RS-232 to 4 Channels RS-485 Active Hub
Features
  • True RS-485 Star Wiring Hub
  • Independent RS-485 driver for each channel
  • LEDs for indicating TxD/RxD activity
  • Self-Tuner baud rate, 300 ~ 115200 bps and fixed baud rate setting via rotary switch, 1200 ~ 115200 bps
  • Hubs can be daisy chained for 256 channels
  • 120O termination resistor for each channel
  • Power Input, +10 ~ +30 VDC
  • Operating Temperatures, -25 °C ~ +75 °C
  • DIN-Rail
Specifications
Specifications

Interface

  • Input
    1 RS-232 Channel: TxD, RxD and GND
  • Output
    4 RS-485 Channels: Data+, Data-
  • 2-wire Cabling
    Belden 8941 (2P twisted-pair cable), if different cables are used, the transmission distance may change
  • Transfer distance
    Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps
  • Supports Max devices
    256 (Each channel)
  • Self-Tuner Asic inside
    Yes.
  • Speed
    300 ~ 115200 bps via Self-Tuner mode; 1200 ~ 115200 bps via Fixed Baud Rate mode
  • ESD Protection
    Yes.
  • Isolation voltage
    3000 VDC at RS-232 side
  • Connection
    Removable 10-Pin Terminal Block x 1; 9-Pin Female D-Sub x 1

LED Display

  • Power/Communication
    Yes

Power

  • Input Voltage Range
    +10 ~ +30 VDC (Non-isolation)
  • Power Consumption
    1.2 W

Casing

  • Mechanical
    Plastic
  • Flammability
    Fire Retardant Materials (UL94-V0 Level)
  • Dimensions
    72 mm x 118 mm x 35 mm
  • Installation
    DIN-Rail

Environment

  • Operating Temperature
    -25°C ~ 75 °C
  • Storage Temperature
    -30°C ~ +80 °C
  • Ambient Relative Humidity
    10% ~ 90% RH, non-condensing
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