Connecting The Pc To The Vari - Bosch LA3-VARI-B Installation Manual

VARI-directional array
6.2

Connecting the PC to the VARI

The PC running VariControl software should be connected to the VARI base unit using the USB
to RS‑485 interface and cables supplied with the VARI‑CS Configuration Set. If the front grille
of the VARI base unit has not already been removed to attach an extension unit, remove it now
with the grille removal tool. Remove the six self-tapping screws securing the connector
compartment cover panel and lift the cover off. See Connector and wiring details, page 23. The
interface has two connectors. One is a USB connector which is connected to a USB port on
the PC using the short USB cable supplied. The other is a 5‑pin Phoenix connector which
should be connected to the RS‑485 Network Connection input on the VARI base unit (refer to
section RS-485 network in (8) and thru (9), page 26) using the 5 m-long Phoenix to Phoenix
cable also supplied. The VARI loudspeaker will need to be powered for the configuration
procedure to be carried out, so connect it to an AC mains supply before proceeding.
USB‑to‑RS485 converter
Figure 6.2: USB‑to‑RS485 converter
The USB‑to‑RS485 converter of the VARI‑CS contains an IC device from Future Technology
Devices International Ltd. Driver software for this converter can be downloaded from:
http://www.ftdichip.com/Drivers/VCP.htm
Bosch Security Systems B.V. Installation manual
Configuring the VARI | en
2018.06 | V1.3 |
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