12
Owner’s guide
Rev. 2.3
8.
The Opalum sound system for integrators
8.1 RS232 control
The RS232 control enables system integrators to control the product by sending commands.
8.1.1 RS232 pin connection
The RS232 is located on the rear. See drawing in the very beginning of this guide, it’s the
input/output marked IR/RS232 shown as socket 5 in the picture.
It uses a standard 3.5mm stereo jack, with the connector as shown in the picture below. Please
note that RX (input) means that this is where the control hub receives data, so you will have to
connect the control system TX to this.
Connect this way:
RX (input) to control system TX
TX (input) to control system RX
GND to control system GND
Make sure to set the IR/RS232 on the bottom of the control hub is in the right position before
using the RS232:
Position of slide switch
Socket function
Switch away from the speaker terminals
RS232 mode
Switch toward the speaker terminals
Electrical IR mode
8.1.2 RS232 port configuration
The RS232 port parameters are as follows:
•
115.200 baud
•
8 bit
•
No parity
•
1 stop bit
•
No flow control
8.1.2 RS232 port protocol
The commands send to the control hub are sent in plain ASCII and terminated by sending a
carriage return <CR> (hex value 0D). All commands are acknowledged with OK on success and ER
on error.