Address Jumper I²C Pull-up Jumper (4.7K) Relay Status

Relay 5-8

SPDT Relay Port

Relay 1-4

Address Jumper

I²C Pull-up Jumper (4.7K)

GND +5V SDA

I²C Output to Next Device

SCL SCL SDA

Relay Status LEDs

+5V

Input from I²C Master

GND

2.1mm Power Jack 12V DC (Center Positive)

12V DC Power Connector

I²C LED

Power LED Relay 5-8

SPDT Relay Port

Relay 1-4

CONNECTOR PINOUTS FOR 20A SPDT RELAY Relay Warranty Rating: 20A@250VAC 20A@30VDC Coil: 12VDC