Specifications
Connection between the DLC24 and the PC is made via an RS-232
port on
the front of the unit or via the RS-422 port on the rear of the unit.
A 9-pin D-sub connector is located on the front. This port can be
used for local, single unit control. Two 5-pin XLR’s are located on the rear
of the DLC24 unit. These ports can be used for remote PC control and
for daisy-chaining additional DLC24 units.
For local PC control, an RS-232 COM port is required from the computer.
For remote control and networking of DLC24 units, an RS-422 output is
required from the computer. In most cases, the RS-422 output will be
on a terminal strip.
TX+, TX-, RX+, and RX- will be used as well as ground if
available.
Some interfaces allow some general communication parameters
to
be set. If that is the case, then they should be set as follows: TX on,
RX on, DCE, and SIMU.
Network Wiring, Wire, and Termination
Connections
For RS-232 connection, the cable should be a “straight” 9-pin D-Sub (male)
on DLC24 end.
For RS-422 communication, the DLC24 has a 5-pin XLR female input and a
5-pin XLR male loop-through. Loop-through cables should be 5-pin XLR
male/female.
At the PC, the RS-422 network wires must be cross-connected. TX+
and TX- from the PC should attach to RX+ and RX- of the DLC24. RX+
and RX- from the PC should attach to TX+ and TX- of the DLC24. It is
important to use high-quality, properly shielded cable for this
application. The network should be terminated at the loop-through
connector of the last unit in the chain. Basic network termination consists
of two 120-ohm resistors, one from TX+ to TX- and the other from RX+
to RX-.
Input Signal Connection
The DLC24 has two balanced 3-pin XLR female input connectors for
connection of the signal input source. The inputs are labeled “IN 1” and
“IN 2”. Pin 1 is “shield”, Pin 2 is signal “+”, and Pin 3 is signal “- ”, for
both analog and digital inputs signals. When the Input Selector Switch
is set to digital, only “IN 1” is active.
Note: 2 Channel digital signals are input via one connector.
Refer to
Input Selector Switch
(page 10) for setting analog and
digital inputs.
7
Connections
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SHSH
TX-TX-
TX+TX+
RX-RX-
RX+RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
Pin 1: Shield
Pin 3:
–
Pin 2: +
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
From
PC
From/To
DLC24
From/To
DLC24
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
Pin 5: RX+
Pin 4: RX-
Pin 1: Shield
Pin 2: TX-
Pin 3: TX+
XLR Male
CONTROL
INPUT
FRONT
REMOTE
ANALOG
DIGITAL
RESET
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
1
2
3
4
5
SH
TX-
TX+
RX-
RX+
Pin 1: Shield
Pin 2: TX-
Pin 5: RX+
Pin 4: RX-
Pin 3: TX+
XLR Female
XLR Female
Pin 5: Ground Pin 2: TX
Pin 3: RX
IMPORTANT: Always make connections prior to applying power to the unit.
22
STEREO BI-AMP
LOUDSPEAKERS
(Apogee AE-5)
DLC24
(REAR)
PUSH
PUSH
CH
A
INPUT
INPUT
CHANNEL
B
CHANNEL
A
CH
B
Typical Stereo Power Amplifier
VOLUME
VOLUME
PUSH
PUSH
CH
A
INPUT
INPUT
CHANNEL
B
CHANNEL
A
CH
B
Typical Stereo Power Amplifier
VOLUME
VOLUME
LF
LF
MIXING
BOARD
LOUDSPEAKERS
(Apogee AE-5)
LF
LF
INPUT
INPUT
SHIELD
SHIELD
(PIN 1)
(PIN 1 )
LEFT
RIGHT
SOFTWARE
INTERFACE
RS-422
LEFT
RIGHT
or RS-232
(Front)
HF
HF
HF
HF
LF
LF
LF
LF
HF
HF
LF
LF
HF
HF
AMPLIFIER
SENSE RETURNS
AMPLIFIER SENSE RETURNS
(OPTIONAL)
LF
LF
Application Setup 2
+TX
-TX
+RX
-RX
+RX
-RX
+TX
-TX
+RX
-RX
+TX
-TX
PC
DLC24
DLC24
PC Interface Connection