TS-8820-relays
From embeddedTS Manuals
The TS-8820 provides 4 mechanical SPDT relays. Each relay has a common connection, a normally open (NO), and normally closed (NC) contact. All 4 sets of contacts are located on the P8 terminal block.
Each relay has contacts rated for 277 VAC / 30 VDC @ 5 A (NO contacts) and 3 A (NC contacts). The use of these relays in the TS-8820 are rated for 30 VAC / 30 VDC @ 5 A (NO) and 3 A (NC).
These 4 relays are manipulated by GPIO from the SoM, not the TS-8820 itself. The relays are controlled by the following GPIO pins: