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en | Installation
VARI-directional array
2018.06 | V1.3 |
Installation manual
Bosch Security Systems B.V.
4.3
Adding VARI-E Extension Units
Notice!
If the VARI base unit is to be installed alone (with no VARI extension units attached), this
section of the Installation Manual may be ignored.
If the line array to be mounted consists of a VARI base unit plus a VARI‑E extension unit, the
extension unit should be attached to the base unit as described in the next step of the
installation procedure. This also applies to line arrays consisting of a base unit and two
extension units, of course; the second extension unit should be attached to the first at the
same time.
This step should be carried out next because:
1.
The VariControl configuration software will automatically detect how many extension
units are present when the PC is connected to the base unit for configuration file upload,
and,
2.
It is physically impossible to attach extension units after the base unit has been fixed in
its mounting position because the mounting brackets need to be moved to accommodate
the extended assembly.
!
Warning!
Ensure the base unit is not connected to the AC mains supply during the mechanical
assembly procedure.
The maximum physical configuration of the VARI-directional Line Array is one base unit plus
two extension units. Do not attempt to add additional extension units.
4.3.1
Attachment method
On a clear, clean and flat floor area, lay the VARI‑B or VARI‑BH base unit down on its back, face
up. In the top surface of the enclosure, observe two tapped holes (M5) and a small plate
secured by two screws. Remove the plate and retain it; a recessed, female multipin D‑shell
connector will now be visible. Both tapped holes are utilised to attach the extension unit.
Figure
4.2: Removing D-shell connector coverplate
Mounting brackets
VARI base units are shipped with two hinged brackets pre-fitted to the rear of the enclosure. If
the line array being installed consists only of a base unit (i.e., with no extension units), the
unit may be mounted in its location without any adjustment to the brackets positions. In this
case, the next section of this manual may be ignored.
Line arrays with extension units - repositioning the brackets
VARI extension units are shipped with one hinged bracket pre-fitted to the rear of the
enclosure, at its “upper” end. Before mounting a line array comprising a base unit and one
extension unit, it is necessary to first reposition the upper hinged bracket on the base unit. If
the line array includes two extension units, then the bracket on the “first” extension unit (that
attached to the base unit) will have to be repositioned in an identical manner.
