Velleman VMB4RYNO - Manual (Page 6)

6 VMB4RYNO 4-channel relay module user manual - version 1
OVERVIEW
Connections LED indications
1 Relay contact channel 1 7 power LED
2 Relay contact channel 2 8 Velbus RX (receive) LED
3 Relay contact channel 3 9 Velbus TX (transmit) LED
4 Relay contact channel 4 10 output status
5 Velbus
6 Velbus power supply
1
6 5
9
8
7
10
2 3 4