SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA
The module voltage 5V
Each channel module can be set high or low triggered by jumper
Fault-tolerant design, even if the control line is broken, the relay will not operate
Power indicator (green), relay state indicator (red)
Interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient
Module size: 50.1mm * 45.4mm * 18.5mm (L * W * H)
4 mounting bolts holes, hole 3.1mm, spacing 45.5mm * 40.1mm

Module Port:
DC+: DC power supply positive
DC-: DC power supply negative
IN1: Channel 1 signal trigger terminal
IN2: Channel 2 signal trigger terminal

Relay Output:
NC1: Channel 1 relay normally closed pin
COM1: Channel 1 relay common pin
NO1: Channel 1 relay normally opened pin
NC2: Channel 2 relay normally closed pin
COM2: Channel 2 relay common pin
NO2: Channel 2 relay normally opened pin

High And Low Level Trigger Option:
1. S1: It is option switch for channel 1 relay
2. S2: It is option switch for channel 2 relay