Invert channels/outputs

The channels can be inverted and then 0 from the server turns the relay on, and 1 turns it off. This is also a very useful feature to use as otherwise there is no difference on a relay between a Relay Box without an alarm, and a Relay Box that is not starting up properly which can be caused by SD-card damage, local power-failure, etc.

INVERT_CH1=1 and/or INVERT_CH2=1

Note that using this option will activate the relay in normal (no-alarm) state, which means that it will provide the voltage on output when there is no alarm.

To solve this problem, you can move the jumper JP1 and/or JP4 from NO to NC. This will invert the output from the relay once more, so you will get output voltage when the server sends logic 1.

The huge benefit of this method is that if the CG1018 doesn’t start up properly you will get an alarm signaled by the presence of voltage on the output, as the relay will not be active.

If you change the jumpers, please leave a note or sticker inside the box as it may not be obvious to other persons servicing the unit later that the outputs control(s) have been inverted. Also make a note in Pyramid so its easily understood for support personnel.