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DCN Voting Units Installation and User Instructions
en | 6
Bosch Security Systems B.V. | June 2004 | 9922 141 70611
Figure 2.6 Changed Voting Button Order LBB 4141/00
To change the voting button order:
1 Unscrew the front plate of the voting unit. Keep
the two screws.
2 Remove the three buttons in the middle of the
unit by squeezing the snap fingers of the buttons
with a pair of tweezers.
3 Insert the buttons in the correct position. (see
Figure 2.6).
4 Fasten the PCB back to the front plate.
5 Set the button order jumper on position 1 (see
Figure 2.7).
i Note
Do not touch the electronics, in order to
prevent damage by static discharge.
Figure 2.7 Positions button order jumper.
The default position of the button order jumper is:
• LBB 4141/00: position 2
• LBB 4141/50: position 1
i Note
The voting unit can not be used for audience
response voting, multiple choice voting, opinion
poll voting and rating, when the button order
jumper is set to position 1.
2.4 Mounting
The LBB 4141/00 and LBB 4141/50 voting units can
be snap-mounted and block mounted.
2.4.1 Snap Mounting
The snap-mounting method is used to install flush-
mounting units in panels with a thickness of 2 mm.
This method uses the ‘click-to-fit’ mechanism to secure
the units in cutouts in tabletops or the armrest of seats.
See Figure 2.1 for a close up of the click-to-fit
mechanism and
Figure 2.9 for the dimensions for snap
mounting.
Figure 2.8 Click-to-fit mechanism
Figure 2.9 Dimensions for snap mounting
2.4.2 Block Mounting
The block-mounting method is used to install flush-
mounting units in surroundings of more than 2 mm.
This method uses couple pieces (LBB 4127/00) to flush
mount the voting units in cutouts in tabletops, metal
plates or armrests of seats. The end caps (LBB 4125/00)
cover the coupling pieces and complete the attractive
design.
See Figure 2.10 for the procedure for block mounting a
voting unit and
Figure 2.11 for the dimensions for block
1 2
. .