Extron Electronics MLS 608 D Series User Guide - 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
MLC's
MLS and
Power
ports
A B C D E
DISPLAY
RS-232/IR RS-232 12V CM/IR/SCP
A B C D E MLS PWR
A B Tx/I
R Rx
GR
O UND
PWR SN
S
GR
O UND
+12V OU
T Rx Tx
GR
OUND
GR
OUND +12V IN
+12V OU
T
GR
OUND
CONT MO
D
IR IN
SCP CO
M
NORMALLY OPEN
1 2
COMMON COMMON COMMON GR
OUND Tx/IR Tx/IR Tx/IR
GR
OUND
GR
OUND
A RELAYS IR/SERIAL OUT
3 4
B
5 6
C A B C
NOTE: If you use cable that has
a drain wire, tie the drain wire
to ground at both ends.
NOTE: You must connect a ground
wire between the MLC and MLS.
MLS 608 D SA
Rear Panel
MLC 226 IP
Bottom Panel
RS-232 12V
MLS PWR
A B
Rx Tx
GR
OUND
GR
OUND
+12V IN
Ground ( )
Transmit (Tx)
B Receive (Rx)
A
Transmit (Tx)
Receive (Rx)
B
A
Ground ( )
+12 VDC input
1
BUFFERED OUTPUT
MTP + AUDIO
+12 V OUT
PWR OUT= 12W
2 3
6
L R 1 L R 2 L R 3
L R 5 L R 7 L R 8 1 2 1 2 MIC/LINE + 48V
1 2
L R L R Tx +12V Rx 8
4 (MTP)
CONFIGURABLE ANALOG INPUTS AUDIO INPUTS
AUDIO OUTPUTS
RS-232 HOST
PWR OUT = 7.2W
DIGITAL OUTPUT
VIDEO + RS-232
ANALOG OUTPUT DIGITAL INPUTS
5
7 L R 6
Tx N/ A N/ A Rx
RS-232 INSERT
MLS 608 D SA
100-240V 50/60 Hz
3.2A MAX
1 2 4/8 OHM - 20W x 2
Figure 9. Wiring the MLS 608 D RS-232 Host Port to an MLC 226 IP
NC
NC
To 70 V Speaker
5 mm
Captive Screw
12b
L
R
12a
To 4/8 Ohm
Speaker Load
5 mm
Captive Screw
MLS 608 D Series • Rear Panel Connections 15