Extron electronics MLS 608 D Series User Manual page 21

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Power amplifier output (MLS 608 D SA) — This
model has a 2x20 watt stereo power amplifier
Connect a suitable audio device for 2-channel stereo,
20 watts per channel, 4 or 8 ohm audio output.
Wire the connector as shown at right
§
Power amplifier output (MLS 608 D MA) — This
model has a 40 watt, 70 volt, mono power amplifier.
Connect a suitable audio device for mono audio,
40 watts, 70 volt audio output.
Wire the connector as shown at right.
NOTE:
The MLS 608 D model has a variable preamp output with no power
amplifier
.
m
RS-232 control and +12 VDC power output — This port is used for configuration
and control of the MLS 608 via RS-232, and for powering the control device (such as
an optional MLC 226).
NOTE:
The RS-232 control and +12 VDC power output port is always active,
regardless of the power save mode status.
RS-232 configuration — To configure the MLS 608, connect this 5-pin connector to
a PC or laptop that has DSP Configurator software installed on it.
Control via RS-232 — To control the MLS 608 via RS-232 after configuration is
complete, disconnect the PC or laptop and connect a MediaLink control system (such
as an MLC 226) to the RS-232 host port.
Default protocol: 38400 baud, 1 stop bit, 8 data bits, no flow control.
Wire the MLC to the MLS 608 as shown below.
RS-232
Host
Tx Rx
MLS 608 D
rear panel
RS-232 Host
port
NOTE:
You must connect a ground
wire between the MLC and MLS.
+12 VDC input
Ground ( )
Ground ( )
B Receive (Rx)
A Transmit (Tx)
NOTE: If you use cable that has
a drain wire, tie the drain wire
to ground at both ends.
Figure 9.
Wiring the MLS 608 D RS-232 Host Port to an MLC 226 IP
DIGITAL INPUTS
CONFIGURABLE ANALOG INPUTS
ANALOG OUTPUT
100-240V 50/60 Hz
1
MTP
DIGITAL OUTPUT
+ 5 6
AUDIO
1 2
BUFFERED OUTPUT
2 3
+12 V OUT 7 8
4 (MTP)
VIDEO + RS-232
3.2A MAX PWR OUT=
12W
MLS 608 D SA
Rear Panel
DISPLAY
RS-232/IR
MLC 226 IP
Bottom Panel
Transmit (Tx) B
Receive (Rx) A
MLC's
MLS and
Power
A B ports
MLS PWR
RS-232 12V
MLS 608 D Series • Rear Panel Connections
12a
To 4/8 Ohm
Speaker Load
Captive Screw
12b
To 70 V Speaker
Captive Screw
MLS 608 D SA
RS-232 INSERT
AUDIO INPUTS
Tx Rx
1 2 3
L R L R L R
AUDIO OUTPUTS
4/8 OHM - 20W x 2
+ 48V +12V
5 6 7 8 MIC/LINE
L R L R L R L R 1 2 L 1 R L 2 R Tx Rx
1
2
RS-232
HOST
PWR OUT = 7.2W
1 2 3 4 5 6
A B
A B C D E
A B C A B C
A B C D E
RELAYS IR/SERIAL OUT MLS PWR
CM/IR/SCP
RS-232 12V
NORMALLY OPEN
5 mm
5 mm
15