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One-Way 5V Relay Expansion Board Module with Optocoupler Isolation
A module description: 1£¬ the module uses genuine high-quality relay£¬ normally open interface Maximum load: AC 250V / 10A£¬ DC 30V / 10A; 2£¬ the use of patch optocoupler isolation£¬ drive ability£¬ stable performance; trigger current 5mA; 3£¬ the module operating voltage 5V£¬ 9£¬12 V£¬ 24V to choose from; 4£¬ the module can be set by jumper high or low trigger; 5£¬ fault-tolerant design£¬ even if the control line break£¬ the relay will not move; 6£¬ power indicator (green)£¬ relay status indicator (red) 7£¬ user interface design£¬ all interfaces can be directly connected through the terminal leads£¬ very convenient 8£¬ the module size: 50mm * 26mm * 18.5mm (L * W * H) 9£¬ with 4 fixed bolt holes£¬ holes 3.1mm£¬ spacing 44.5mm * 20.5mm Two module interfaces: 1£¬ DC +: then the power supply positive (voltage according to the relay requirements£¬ with 5V.9V.12V and 24V choice) 2£¬ DC-: connected to the power supply negative 3£¬ IN: can be high or low level control relay pull Relay output: 1£¬ NO: relay normally open interface£¬ relay pull before the suspension£¬ after the connection with the COM shorted 2£¬ COM: relay common interface 3£¬ NC: relay normally closed interface£¬ the relay before the connection with the COM short£¬ pull after the suspension High and low trigger select side: 1. jumper and LOW short when the trigger is low; 2. When the jumper and high shorts are high£¬ the trigger is high.