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RS-232
BALANCED
UNBALANCED
OPTICAL IN DC INPUT
G
Tx
R–
L–
L+
R+
G
Rx
RS-232
Auto
On/Off
L
R
RS-232
BALANCED
UNBALANCED
OPTICAL IN DC INPUT
G
Tx
R–
L–
L+
R+
G
Rx
RS-232
Auto
On/Off
L
R
RS-232 connector
The bi-directional RS-232 connector is used to control the Sound Bar
from compatible RS-232 control systems.
To connect the Sound Bar to a control system, connect Sound Bar G to
ground on control system. Connect Rx from Sound Bar to transmit/Tx
from control system, and Tx from Sound Bar to receive/Rx from control
system.
See the section “RS-232 protocol” on page 13 for details of the protocol
and remember to set the mode selection switch as described below in
“RS-232” mode.
Switch for selecting RS-232 or Auto On/Off mode
This switch is used to select between the two operation modes of the
Sound Bar.
For difference in operation modes see chapter “How to use” on page 11.
Balanced audio connector
The connector marked “BALANCED” is line level audio input which can be
used in both balanced or unbalanced mode. Connect the audio source
using the supplied terminal block.
To connect the input to a balanced source connect ground to the shield of
both cables.
P/N#:
310-0102
LAN
Neets Control
Sierra II, EU
RoHS
GND
I/O 1
I/O 2
I/O 3
PWR
NDA
NCL
GND
+12V
GND
GND
TX-1
RX-1
GND
TX-3
TX-2
RS-232
BALANCED
UNBALANCED
OPTICAL IN DC INPUT
G
Tx
R–
L–
L+
R+
G
Rx
RS-232
Auto
On/Off
L
R
RS-232
BALANCED
UNBALANCED
OPTICAL IN DC INPUT
G
Tx
R–
L–
L+
R+
G
Rx
RS-232
Auto
On/Off
L
R
