Bosch LA3-VARI-B Installation Manual page 18

18 en | Installation VARI-directional array
Figure 4.5: Mate extension unit to base unit
With the connectors fully mated, and the two unit's surfaces flush with each other, insert the
two M5 x 12 mm hex-headed screws (supplied with the extension unit) through the holes in
the bottom surface of the extension unit (from the inside, via the access compartment), into
the threaded inserts in the top surface of the base unit (3). Tighten them fully with a spanner.
If a second extension unit is to be attached to the first, repeat the procedure. The holes in the
top surface of the extension units have M5 inserts in the same way as base units, and the
method of attaching two extensions together is identical to that already described for
attaching an extension unit to a base unit. Replace the access compartment cover panel(s) in
the front baffle(s) of the extension unit(s), and then replace the front grille(s). Finally, fit the
D‑connector cover plate removed from the top of the base unit to the top of the extension unit
(or the second extension unit if there is one).
The line array is now ready for configuration; refer to Configuring the VARI, page 29.
2018.06 | V1.3 | Installation manual Bosch Security Systems B.V.