Installation guide

3. Connect digital input wiring as follows:

4. If the input is DC volts or milliamps, remove the module cover and set the configuration jumper for

the input to indicate the type of input used. Make sure the jumper is positioned correctly for each

input, as follows:

Note: The default jumper setting is THERM (thermistor or dry contact).

Wiring digital outputs

You can wire digital outputs to the following DataNab modules:

• Ai8_R13 (direct and using an external relay)

• AiO8 (using a 12 volt DC external relay)

The Ai8_R13 has a single pole normally open contact built-in per output (total of 13). These can be

used to switch low voltage loads directly or high voltage loads via an external relay.

To wire digital outputs:

1. Be sure the I/O module power is off before wiring any outputs.

2. To use the Ai8_R13 to drive low voltage loads without an external relay, connect the wiring as

follows: