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6 Digital input multiplexer

 The Digital Input Expander allows 6 volt free inputs to be monitored by a single analogue input channel. The resultant analogue value can be decoded by the A to D function module in an BMS controller to produce internal digital status bits for alarm monitoring or other status input applications



● Expand capacity of existing DDC for

       cost effective installation.
● Visual indication of LED inputs for
       easy commissioning
● Application includes lighting controls
       and monitoring status of equipments
Supply voltage: 24Vdc or Vac ± 10%
Supply current: 50mA max (I mode)
                         30mA max (V mode)
Input Channels: 6 volt free contact switch 24Vdc
Input Threshold: Upper 17.5V max (ON) level
                           Lower 7.5V min (OFF) level
Distance: Max. distance of IOD6 from controller
                         25m (V mode) 1000m (I mode)
Output: Mode selectable by link header
             current/voltage (I/V)
I: 0 to 20mA, max. resistance of load 250 Ω
V: 0 to 10Vdc, max. current 1mA
LED: Single LED per input channel, LED on
          indicates contact closed
Dimensions: 72mm x 65 mm x 25mm
Ambient limits:
storage: -10℃ to + 70℃
operating: -10℃ to + 50℃
humidity: 0 to 90%RH non-condensing
Order Code

 IOD6   Six Input Digital Multiplexer




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