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What type of cable should be used to wire inputs and outputs?


What are the IO wiring requirements for the IO Modules


Analogue, Digital, Input, Output


UI-16, DI-16, AO-8-x, AO-8-V-x

UI-8, DO

b3 Inputs


The existing documentation does not specify the exact cable types to be used.


Different types of sensors can be used that come from different legacy systems, so cable types specified for the legacy systems will be appropriate for the same sensor type being connected to an Automation Server I/O module.

If you are using Xenta sensors with the 1.8K Ohm thermistors you should use the wiring rules as per the Xenta documentation. Of if you use Continuum 10K Ohm sensors, use the Continuum IO wiring rules etc.

Some suitable cables for most Analogue and Digital input,  also analogue output applications are:

18 AWG (16 x 30) 0.823 mm2 - single pair screened e.g. Belden 8760

22 AWG (7 x 30) 0.325mm2 - single pair screened e.g. Belden 8761

The maximum distances that these cable can be run are dependent on the input requirements, for Temperature inputs this will depend on the temperature range and accuracy required.

For examples of of these cable distances see links below:

Continuum 10K Ohm sensors (also applicable for b3 controller inputs).

Xenta 1.8K Ohm sensors.


For digital outputs cable should be used with appropriate size (current rating)  to the loads being switched.

It is recommended to use screened cables and also ensure correct connections for analogue inputs as detailed in Lessons Learned #17654

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‎2018-09-11 12:41 PM
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