Velleman-projects VMB1TC Short user manual Manuel d'utilisateur télécharger pdf (Page 4)

1. Temperature controller 'VMB1TC' connection

Connection Battery backup

To avoid losing the clock when a power failure occurs, a

backup battery (3V Lithium CR2032) can be installed in the

battery holder at the back of the module.

To avoid premature depletion of the battery, only install it

when permanent power is supplied to the Velbus system.

ENGLISH

Place the TERM jumper if the module is

connected at the start or end of a cable on the

Velbus.

Remove the jumper in all other cases. Place a jumper on the

end module of the longest cable only, NOT on each end point.

E.g. a normal two-story house will have 3 terminators: 1 up-

stairs end point, 1 downstairs end point and 1 in the fuse box.

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Velleman-projects VMB1TC Short user manual Manuel d'utilisateur Page 4