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DATEQ SPL5 Manual
Signalling connector; DB-25 female
Pin
1 External attenuator
2 Reduction signal
3 Overload signal
4 Live OK signal
5 Warning signal
6 Level OK signal
7 Safe level signal
8 External VU unit
9 Microphone +
10 Left audio in +
11 Right audio in +
12 Left audio out +
13 Right audio out +
14...17 Digital ground (to be used with the
signalling outputs)
18...20 Analogue ground (to be used with the
audio in and outputs)
21 Microphone -
22 Left audio in -
23 Right audio in -
24 Left audio out -
25 Right audio out -
Table 4: DB25 connections
Microphone input
Connect the supplied measuring microphone here. The wiring of the microphone can be
lengthened with standard microphone cable. Pay attention to the polarity of the wiring. If
the microphone is wrongly connected it won't work. The limiter will give an error message,
and the volume will be extremely reduced.
The microphone should be installed so that it 'hears' both sound from the speakers as well
as the sound from the crowd in the room. The microphone can be placed closer to the
speakers when the maximum allowed level is very low. This reduces the effects of
background noises.
Audio inputs
Balanced audio inputs. Pin 1 and 3 of the XLR connector should be linked together when
the mixer only has unbalanced outputs. The mixers' signal can be connected to pin 2, and
the ground to pin 1.
Audio outputs
Connect the power amplifiers here. Connect pin 2 (signal) and pin 1 (ground) when the
power amplifier does not have balanced inputs.
All manuals and user guides at all-guides.com
Function
In
Out; 15V/ 5mA max.
Out; 15V/ 5mA max.
Out; 15V/ 5mA max.
Out; 15V/ 5mA max.
Out; 15V/ 5mA max.
Out; 15V/ 5mA max.
In/ Out
In
In
In
Out
Out
In
In
In
Out
Out
In/ output
Installation
7
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