Velleman VMB4PD - Manual (Page 5)

VMB4PD 5
Termination:
If the module is connected at the start or end of a cable on the VELBUS, place the ‘TERM’ jumper.
Remove the jumper in all other cases.
If different cable wiring topologies (tree, star, loop, ...) are used, place a jumper on the end module of the
longest cable only, NOT on each end point.
Velbus
®
transmission LED
Velbus®
reception LED
Velbus® power LED
Termination
12V power
supply
-
+
L
H
Velbus
9V back-up
battery
+
-