Table of Contents
Advertisement
VARI-directional array
5.3
Line level input 1 (4) and 2 (5)
The VARI is fitted with two transformer-balanced line inputs. Selection of Input 1 or Input 2 as
audio source is made from the VariControl software via the network, and for many
installations only Input 1 need be wired. However, Input 2 may be connected to a secondary
signal path (in case of a failure elsewhere in the system), or to an emergency sound source.
For optimum results only use good quality balanced audio cable consisting of a twisted pair
and an overall screen. The audio source(s) should have a low impedance balanced output. The
nominal line input level is 0 dBV.
Connector type: 3‑pole, 3.81 mm-pitch:
Input 1
Pin
4
5
6
5.4
100 V input 1 (6) and 2 (7)
These inputs should only be used if the VARI is to be fed from an audio power amplifier with
100 V line outputs (or from an amplifier with low-impedance outputs, via 100 V line
transformers). The VARI can thus form part of a 100 V line loudspeaker system and be
connected in the same way as the other speakers. Do not connect a 100 V line to input 1 if
already a line level input is connected to input 1. Idem for input 2
The inputs are transformer-coupled for impedance matching and galvanic isolation. Selection
of Input 1 or Input 2 as audio source is made from the VariControl software via the network,
and for most installations only Input 1 need be wired. However, Input 2 may be connected to a
secondary signal path (in case of a failure elsewhere in the system), or to an emergency sound
source.
Connector type: 2‑pole, 5.08 mm-pitch:
Input 1
Pin
3
4
Loudspeaker distribution systems in some territories use 70 V line as the standard; all
references in the manual to "100 V line" can be taken as applying equally to 70 V line.
Bosch Security Systems B.V.
Input 2
Function
Pin
Hot (+)
1
Ground
2
Cold (-)
3
Input 2
Function
Pin
100 V line +
1
100 V line -
2
Installation manual
Connector and wiring details | en
Function
Hot (+)
Ground
Cold (-)
Function
100 V line +
100 V line -
25
2018.06 | V1.3 |
Hide quick links:
Advertisement
Table of Contents
