2/4/8Channel Modul With Optocoupler Isolation H/L Level Trigger Relay 5/9/12/24V

COM2: 2 Common Interface relay. IN1~IN8 : relay signal triggering pin. Relay output Common pin (COM1~COM8) : relay common pin. Normally closed pin (NC1~NC8) : relay normally closed pin. Normally opened pin (NO1~NO8) : relay normally opened pin.

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