The Comset DIO-004 is a four- relay digital IO board specifically designed for the CM685V-1, CM685V-4 , CM685V-6 and CM770W-6 3G/4G/4GX Routers as well as the CM685VX and CM950W 5G Routers. It allows controlling of larger loads and devices such as a pump, a fan or an air conditioner via SMS.
The DIO-004 requires 12VDC to operate properly. The power supply can be the same as the CM685 router.
Module can be set to high level or low level trigger using a jumper wire. Onboard LED’s to show power status and relay status (relays 1-4).