Diagram

SuperDroid Robots Inc
7 Relay Board
PAGE
2 OF 6
Notes:
1. Vin should be same voltage of relays
2. In TTL Signal should be 5v
5V, 12V or 24V Vin
See Note 1.
IN 1-7 are TTL Inputs
NO: Normally Open
COM: Common
NC: Normally Closed