Youngneer 2 v Relay Module

Specification:
Material: Circuit board 
Control signal: TTL 
Rated load: AC125~250V/10A, DC28~30V/10A 
Max. switch voltage: 250VAC, 30V 
Trigger Voltage: 0-1.5V (LOW); 2.5-5V (High)
Trigger Current: 5mA
Max. Current: 190mA
Size: 50mm * 46mm * 18.5mm (1.9 inch *1.81 inch * 0.72 inch )


Four Fixed Bolt Holes:
Diameter: 3.1mm
Separation Distance: 44.5mm*35.5mm


Input Connection:
DC +: Positive power supply (VCC)
DC-: Connect power negative ( GND)
IN1: 1-Channel Signal Trigger Terminal - Control the pick-up of relay by low level or high level
IN2: 2-Channel Signal Trigger Terminal - Control the pick-up of relay by low level or high level


Output Connection:
NO1: "Normally Open" Port for 1-Channel relay;The relay is suspended before absorption, connecting "COM1" to Short Circuit after absorption
COM1: "Common" Port for 1-Channel relay
NC1: "Normally Closed" Port for 1-Channel relay; Connecting to "COM1" to Short Circuit before absorption, the relay is suspended after absorption
NO2: "Normally Open" Port for 2-Channel relay; The relay is suspended before absorption, connecting "COM1" to Short Circuit after absorption
COM2: "Common" Port for 2-Channel relay
NC2: "Normally Closed" Port for 2-Channel relay; Connecting to "COM2" to Short Circuit before absorption, the relay is suspended after absorption


High and Low Level Trigger Effective Mode
S1: High and low level trigger for 1-channel relay
S2: High and low level trigger for 2-channel relay
Low level trigger when "COM" connecting "Low" to Short Circuit;
High level trigger when "COM" connecting "High" to Short Circuit.


LED Indicator Light:
Power Indicator: Green
Indicator of Relay Status: Red