MACKIE DX8 - Manual (Page 13)

DX8 – 13
Strip the wire back about 1/4" inch, insert the
wire as far as it will go into the appropriate hole in
the supplied Phoenix-type connector, and tighten
down the screw with a small slot-head screwdriver.
It is recommended that you use 20 or 22 gauge
wire with the Phoenix-type connectors. The
OUTPUT connectors are wired as follows:
Pin 1 = Ground (Shield)
Pin 2 = Hot (+)
Pin 3 = Cold (–)
Connecting the LOGIC I/O
This is a 25-pin D-Sub connector. There are 10 logic
inputs and 10 logic outputs. They are all active-low
circuits. Use 22 gauge wire for these connections.
N/C
GROUND
N/C
LOGIC OUT 10
LOGIC OUT 9
LOGIC OUT 8
LOGIC OUT 7
LOGIC OUT 6
LOGIC OUT 5
LOGIC OUT 4
LOGIC OUT 3
LOGIC OUT 2
LOGIC OUT 1
N/C
LOGIC IN 10
LOGIC IN 9
LOGIC IN 8
LOGIC IN 7
LOGIC IN 6
LOGIC IN 5
LOGIC IN 4
LOGIC IN 3
LOGIC IN 2
LOGIC IN 1
+5VDC
LOGIC I/O
1
14
25 13
LOGIC I/O Pinout Connection
The logic inputs are active-low with internal pull-
up resistors connected to +5V DC. Use a normally
open switch connected between the logic input and
ground (pin 25). When the switch is closed, the
logic input is active. Depending on the function
assigned to the logic input, a toggle switch or a
momentary switch may be used.
N/C GROUND
N/C
LOGIC IN 10
LOGIC IN 9
LOGIC IN 8
LOGIC IN 7
LOGIC IN 6
LOGIC IN 5
LOGIC IN 4
LOGIC IN 3
LOGIC IN 2
LOGIC IN 1
LOGIC INPUT
1
14
25 13
LOGIC INPUT Connection
The logic outputs are active-low, open-
collector outputs with internal pull-up resistors.
Connect the indicator or activation circuit between
the logic output and +5V DC (pin 1). When the
output is active, the output is 0V DC. The logic
outputs can supply up to 10mA of current each.
GROUND
N/C
LOGIC OUT 10
LOGIC OUT 9
LOGIC OUT 8
LOGIC OUT 7
LOGIC OUT 6
LOGIC OUT 5
LOGIC OUT 4
LOGIC OUT 3
LOGIC OUT 2
LOGIC OUT 1
10mA Maximum
+5VDC
LOGIC OUT
1
14
25 13
LOGIC OUTPUT Connection
Note: Pins 12, 13, and 24 are not used at this
time. They are reserved for future updates. Do not
connect anything to these pins.
Connecting the REMOTE BUS
This is a 3-pin Phoenix-type connector
specifically for connecting the optional remote
control peripherals. Use a high-quality three-
conductor shielded cable to make this connection,
such as Belden 8451, 9451, or equivalent. The
lower the nominal capacitance of the wire, the more
distance you can have between the remote control
and the DX8 before suffering transmission losses.
Strip the wire back about 1/4" inch, insert the
wire as far as it will go into the appropriate hole in
the supplied Phoenix-type connector, and tighten
down the screw with a small slot-head screwdriver.
It is recommended that you use 18, 20, 22, or 24
gauge wire for the remote control connections,
depending on the distance between the DX8 and
the remotes.
The REMOTE BUS connector is wired as follows:
Pin 1 = Ground (Shield)
Pin 2 = Data + (with +24V DC power)
Pin 3 = Data – (with +24V DC power)
Note: See the instructions with the remote
control for more information.
AC Power Considerations
The DX8 can accept an AC voltage ranging from
90V to 240V without having to reconfigure the
primary wiring, due to the sophisticated design of
the switching power supply. Each DX8 draws an
average of 1 amp of AC line current at 120V AC.
Warning: Always use a 3-conductor AC power
cord with a safety ground connection. Never
remove the ground pin or attempt to bypass it. This
is very dangerous.