KEYES 8 Channel Relay High/Low Level Trigger Relay Module

KEYES 24V 8 Channel Relay High/Low Level Trigger Relay Module
Description:
1) the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V / 10A, DC 30V / 10A;
2) using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
3) module voltage 5V,
4) each channel module can be set high or low-level triggered by jumper;
5) fault-tolerant design, even if the control line is broken, the relay will not operate;     
6) power indicator (green ), 8-way relay status indicator (red)
7) the interface design of human, all interfaces can be directly connected through the terminal leads, very convenient
8) the module size: 141.5mm * 55mm * 18.5mm (L * W * H )
9) with four fixed bolt holes, holes 3.1mm, spacing 133mm * 40mm

Module Interface: 
1) DC +: then the power supply positive (voltage according to the relay requirements, 5V.9V.12V and 24V selection)
2) DC -: connected to the power supply negative
3) IN1-IN8: according to each way of the settings, can be high or low level control the corresponding relay pull

Relay Output: a 24-wire interface, all interfaces can be directly connected leads to user-
1) NO1 - NO8: normally open relay interfaces, relay before hanging, pull back with COM
2) COM1 - COM8: relay Common Interface
3) NC1 - NC8: normally closed relay interface relay Before the short with COM, pull after the suspension

High and low trigger select side:

1) S1-S8 relay for the 1-way -8 high-level trigger selection;

2) com and low short, the corresponding relay is low trigger, com and high-side short when the high-level trigger