8 channel serial relay module

8 channel serial relay module with RS232 interface and USB connection.

Also includes 4 optically isolated inputs.

Detachable screw terminal connections.

Simple command set:

N0 turns ON all relays, N1 turns ON relay 1 N2 turns ON relay 2 and so on.

F0 turns OFF all relays, F1 turns OFF relay 1, F2 turns OFF relay 2 and so on.

T0 toggles the current relay status, any relays OFF and now ON and any Relays ON are now OFF

T1 toggles relay 1 only, T2 toggles relay 2 only.

I0 reads all inputs, a 1 is returned if the input is active, 0 if it is not.

S0 reads all of the current relay statuses.

Requires a 12 VDC 500 mA power supply, 5.5mm outer 2.1mm center, center positive.

Made in Canada with parts from U.S. suppliers.