RS422-TTL Module, Full Duplex, RS-422 View larger

RS422-TTL Module, Full Duplex, RS-422


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Pin definition:

A = R +

B = R –

Y = T +

Z = T-


  • RS422 interface, two-way communication. A B Y Z GND interface, GND can be used, ultra-long transmission 1000 meters
  • with 15KV ESD TVS diode, anti-lightning, anti-peak voltage
  • On board 10 ohm current-limiting, overcurrent protection resistor
  • 120 ohm termination resistor, effectively reduce the long-distance communication echo interference
  • On board power indicator
  • RS485 interface with 2-wire and 3-wire mode, to provide GND, can be chose to use
  • RS485 interface using the conventional 301 terminal, wiring is simple, the user can also self-welding 2.54mm pitch pin
  • TTL side, using 5V DC power supply RXD TXD compatible with 5V logic signal
  • the communication rate of 2.5MBPS
  • Randomly send MAXIM or SIPEX ICs board.

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