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Arrakis Systems X-mixer-14-22 Operations Instructions Page 34

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1)
2)
3)
4)
5)
6)
7)
8)
9)
NC
REMOTE START (CH 2-5)
LEFT (-) AUDIO INPUT
NC
NC
RIGHT (-) AUDIO INPUT
REMOTE START (CH 2-5)
LEFT (+) AUDIO INPUT
RIGHT (+) AUDIO INPUT
PIN
FUNCTION
STEREO LINE INPUT CONNECTOR
LINE LEVEL IN & LOGIC
L(-)
STT
NC
R(-)
NC
NC
R(+)
L(+)
STT
2
6
5
4
9
7
8
1
3
a) LEVELS
The audio trimpots will adjust levels from -10dBV to +8dBu for consumer and pro sources. The trimpots
are factory set for +4dBu input levels.
b) INPUT IMPEDANCE
The 1200 stereo line inputs are high impedance active balanced design (>10,000 ohm input
impedance
c) CONTROL LOGIC
1) REMOTE START
An
isolated, momentary reed
relay closure (50 mA max)
is provided
for remote start
of sources. Closure lasts
approximately 1/3 second.
This closure is available
on channels 2 through 5
on each Input
Board. The
first channel on the PC
board is often a mic
channel
and does not
have a start relay. For
example, the 10 channel
1200 console (1200-10S)
will have remote start
relays
on channel 2
through 5 and channels 7
through 10 only.
2) SUSTAINED LOGIC
A sustained collector
transistor drive to -VDC is
provided for channels 2
through 5, although not
channel 1. ThiS
connection is in parallel to
the
channel‘s ’ON‘ lamp.
Refer to Section 3-8 for
detailed information.
d) MIX MINUS
The channel is assigned to
the MIX MINUS
bus when
the MIX MINUS jumper is
in place.
Typically, a
telephone channel is NOT assigned
to the MIX (-)
bus. Activation is with the
AUDITION bus.
IMPORTANT
the Remote
Start reed relay has a
maximum capacity of 50
milliamps. If more current is
required, use the reed relay to
drive a larger, external relay.
Arrakis Systems, inc. --- 6604 Powell st., Loveland, CO 80538 --- 970-461-0730 --- www.arrakis-systems.com
INSTALLATION PROCEDURES
STEREO LINE LEVEL INPUTS
3-7)
3.18
2
6
5
4
9
7
1
3
1
8
2
6
5
4
9
7
1
3
1
8
2
6
5
4
9
7
8
1
3
1
ch 1 ch 2
ch 3
ch 4
ch 5
1
P1
2
6
5
4
9
7
1
3
1
8
1
1
+
+
+
+
1
+
+
1
1
1
1
1
1
1
1
AUD
1
1
+
+
J
1
1
+
+
1
1
1
PGM
1
1
+
+
1
1
+
1
+
+
1
1
1
+
1
1
+
+
1
1
+
1
+
+
1
1
1
1
1
+
+
1
1
+
1
+
+
1
1
1
1
QX
AUD
PGM
AUD
PGM
AUD
PGM
AUD
PGM
3 2 5 4
2
6
5
4
9
7
1
3
1
8
2
6
5
4
9
7
1
3
1
8
1
1
MIX MINUS
ASSIGN JUMPER
(each channel)
AUDIO
TRIMPOTS
SUSTAINED LOGIC
CONNECTOR
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