Devantech ETH8020 - Hardware Connections; Power Relay Configuration

Connections
16A VFC (Volt Free Contacts) NC = normally connected, C = common, NO = normally open
12v dc output
Direct from
2.1mm jack
Analogue
inputs
P = Analogue
Input (0-5v)
G = 0v ground
RJ45
Ethernet
16A VFC (Volt Free Contacts) NC = normally connected, C = common, NO = normally open
Power relays
Four 16A volt free contact relays are provided for switching a common input between a normally closed output and a
normally open output. The relay coil is powered by the 12vdc incoming supply on user command.
Coil C
Relay in passive state
NC NO
Coil C
Relay in powered state
NC NO
© Devantech Ltd 02/07/19 ETH8020 Documentation 2/17