This is a 4-channel relay board kit with another 4-channel open-collector outputs. It is compatible with the Quick2Wire Interface board via a 6way ribbon cable or it can plug straight into the Raspberry Pi.
Features

• 4 Change over relay
• LED indicator relay channel
• 5A current (max) on relay
• 4 Open-collector output
• Each board is individually addressable via DIP switch
• Compatible with Quick2wire Interface board
• Can plug straight onto Raspberry Pi via 26way ribbon cable (not supplied)

Documents

• Assembly and test guide
• Schematic Rev C

Raspberry Pi and Quick2Wire board not included.