UK_AutoMixers_V2.doc
Rev 2.0
6
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The remote control card of logic circuits consents to extend the adjustment options and
opportunity of installations. The logic circuits could be used for different applications,
from simple ‘cough’ push button to complex environment systems adjusted by
computer.
a. GATE: when the respective audio channel is get activated by audio signal at its
input, it turn at ‘low’ logic condition.
b. MUTE: forced deactivation of channel when a ‘low’ logic signal is applied.
c. OVERRIDE: forced activation of channel when a ‘low’ logic signal is applied. MUTE
is priority when MUTE and OVERRIDE functions are activated.
d. LOGIC GROUND: logic ground is different to the audio ground. Connect at this pin
all logic ground points, supply’s ground of outside logic circuit enclosed. For avoid
‘click’ in commutation condition, do not connect the logic ground to the audio ground
or chassis or rack ground. The logic circuits are directing by multiple connector
DB25 on back panel ( 32 of Fig.1). The pins connections are in the following table.
LOGIC CIRCUITS CONNECTIONS (32 of Fig.1)
LOGIC FUNCTION
INPUT CHANNEL
CONNECTOR PIN NUMBER
GATE 1
GATE 2
GATE 3
GATE 4
GATE 5
GATE 6
GATE 7
GATE 8
1
2
3
4
5
6
7
8
1
15
4
18
7
21
10
24
OVERRIDE 1
OVERRIDE 2
OVERRIDE 3
OVERRIDE 4
OVERRIDE 5
OVERRIDE 6
OVERRIDE 7
OVERRIDE 8
1
2
3
4
5
6
7
8
14
3
17
6
20
9
23
12
MUTE 1
MUTE 2
MUTE 3
MUTE 4
MUTE 5
MUTE 6
MUTE 7
MUTE 8
1
2
3
4
5
6
7
8
2
16
5
19
8
22
11
25
Logic Ground
all
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Содержание AMA 3000
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