1 Channel Optocoupler Relay Module Board High & Low Tri

Feature:
Adopt patch photocoupler isolation, strong driving ability, stable performance. Trigger current is 5mA.
Each path of the module can be triggered by the high level or low level through a jumper setting.
Fault-tolerant design,even if the control line breaks,the relay will not move.
Power indicator light (green), 4-way relay state indicator light (red).
Humanized interface design, all interfaces can be directly connected through the terminal lead, very convenient.
Four fixing bolt holes are provided.
Specification:
Weight: 18g/0.6oz
Module Size (L*W*H): 50*26*18.5mm/2*1*0.7inch
Bolt Hole: 3.1 mm; 44.5*20.5mm (spacing)
Module interface:
2. DC- : connect to the power negative pole.
3. IN: high or low level control relay suction
Relay output terminal:
1. NO: relay changeover interface,relay suction front suspension, suction and COM short connection.
2.COM: Relay common interface.
3.NC: Relay normally closed interface,relay suction and COM short joint, suction clearance.
High and low level trigger selection terminal:
1. When jumper is connected with LOW short circuit, it is triggered by LOW level;
2. High level is triggered when jumper is connected with high short circuit;

Package List:
1 x Relay Module