Digital Matrix Mixer Instruction Manual

8 – DX810
Connecting the LOGIC I/O
This is a 25-pin D-Sub connector. There are 10
programmable logic inputs and 10 programmable
logic outputs. In addition, there is an 11th fixed logic
output to indicate "System OK." They are all active-
low circuits. Use 22 gauge wire for these connections.
N/C
GROUND
SYSTEM OK LOGIC OUT 11
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 +5 VDC. 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 +5 VDC (pin 1). When the output is
active, the output is 0 VDC. The logic outputs can
supply up to 10 mA of current each.
GROUND
SYSTEM OK LOGIC OUT 11
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 and 13 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
DX810. This is in order to avoid 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. Then 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. The
guage used depends on the distance between the
DX810 and the remotes.
The REMOTE BUS connector is wired as
follows:
Pin 1 = Ground (Shield)
Pin 2 = Data + (with +24 VDC power)
Pin 3 = Data – (with +24 VDC power)
Note: See the instructions with the remote
control for more information.
AC POWER CONSIDERATIONS
The DX810 can accept an AC voltage ranging from
90 V to 240 V without having to reconfigure the
primary wiring. This is due to the sophisticated
design of the switching power supply. Each DX810
draws an average of 1 amp of AC line current at
120 VAC.
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.