Velleman VMB8PB - Manual (Page 10)

10 8-channel pushbutton module | VMB8PBU – ed.1
TERMINATOR
In normal circumstances only 2 ‘TERM’ terminators must be foreseen in a complete Velbus installation. Usually this
will be on one module inside the distribution box and on the module the furthest from the distribution box.
In all other cases it must be removed.
Remark:
In a wiring scheme with a lot of branches a
terminator is placed on a module inside the
distribution box and on the control panel
furthest from the distribution box. Should
communication problems occur, an additional
terminator can be placed on another branch.
However, the number of terminators should
be kept to a minimum as additional
terminators place a heavy load on the bus.