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DFRobot Industrial RS485 Opto-Isolated Hub

DFRobot Industrial RS485 Opto-Isolated Hub is a 4-Port RS485 bus split hub designed to meet RS485 requirements in complex electromagnetic environments. The hub has a transmission that reaches up to 115.2Kbps. The RS485 interface adopts photoelectric isolation technology to prevent a lightning surge from being introduced into converters and equipment. The built-in optoisolator and 600W surge protection circuit provide an isolation voltage of 2500V. This can effectively suppress interference like surge and electrostatic discharge.

Specifications

  • The interface is compatible with EIA/TIA’s RS-232C and RS-485 standards
  • 10-position pluggable terminal blocks on both sides electrical interface
  • Twisted pair or shielded wire transmission medium
  • Asynchronous half-duplex working mode
  • Working power supply, 9V～30VDC/150mA
  • 7 signal indicator lights, power (PWR), sending (TXD), receiving (RXD), malfunction (E1-E4)
  • Isolation voltage 2500V
  • 300bps～115.2Kbps transmission rate
  • RS-232 port ±15kV ESD protection, RS-485 port 600W lightning surge protection per line protection level
  • 0～5km (115.2Kbps～300bps) transmission distance
  • Temperature -25℃～70℃, relative humidity 5%～95%, altitude ≤3000m usage environment
  • 120mm x 77mm x 40mm / 4.72″ x 3.03″ x 1.57″

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DFRobot Industrial RS485 Opto-Isolated Hub