EX9050HD – 8 channel digital input, 8 channel open collector output RS485 module with LED

ExpertDAQ Digital IO module communicate via RS485. Within one RS485-network up to 256 modules may be controlled. Without a RS485 Repeater the maximum cable length is 1200m. The RS485 Digital IO module are sturdy, power saving and easy to use.

The EX9050HD has 8 digital Input and 8 digital open-collector Output. The Digital IO RS485 module can emit currents of 30mA at 30V and has a LED-display for each channel. The Digital IO RS485 module was developed for use in a wide temperature range.


  • 8 digital input, 8 open-collector output channels
  • all inputs isolated
  • output voltage up to 30V, output current up to 30mA
  • LED-display for each channel
  • extended temperature range
  • input impendace 3kOhm
  • Digital Level 0: <+1V – Digital Level 1: 4-30 V
  • output as RS485-interface
  • manual configuration or with supplied Software
  • power supply 10 – 30VDC
  • Hard- and Software Watchdog

Downloads manual

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Host Watchdog:yes
Module Watchdog:yes
Speed:300~115200 bps
Connector:screw terminal block
Digital input
Channels:8 single-ended
Logic 0:0 to 1 V
Logic 1:3.5 to 30 V
Voltage impedance:3 kOhm
Connector:screw terminal block
Digital output
Channels:8 open collector
Switching Current DC:30 mA@30 V
Connector:screw terminal block
General specification
Power consumption:1.7 W
Operating Temperature:– 25 °C to + 75 °C
Storage Temperature:– 40 °C to + 80 °C
Included in delivery
Din rail mounting kit:1
Wall mounting kit:1
Driver CD:1