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Redbox User Handbook No 1
Serial Port Control
The Serial Port allows the RB-DSD1 to be controlled and updated from a PC via a pin-to-
pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is
available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
Default Settings for the Serial Port
Baud Rate:
19200
Data Bits:
8
Stop Bits:
1
Parity: Even
Handshaking:
XON/XOFF
Fig 10-9: Serial Port Default Settings
Serial Interface Commands and Responses
Most of the commands follow the same structure: a 3 letter command followed by a colon,
followed by a parameter (if any) and terminated by Carriage Return with optional Line Feed.
A Line Feed character may be sent but it will be ignored by the RB-DSD1. Commands are not
case sensitive.
Responses are CR & LF terminated.
After the RB-DSD1 has been powered-up, an initialisation string is sent
“Initialising DSD1”.
Following are the commands and the expected responses:
Serial Protocol RB-DSD1
Command Description
Response
AOM:nn
-ACK:
nn represents which channel has been chosen
00 = Manual return
01 = Auto return
Bnn:
Baudrate change where
-ACK:
nn is the new baudrate value where:
11 – 115200
57 – 57600
38 – 38400
19 – 19200
96 – 9600
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SYNCHRONISERS, DELAYS &
SILENCE DETECTORS
SY
NCHR
ONISERS, DEL
A
Y
S & SILENCE DE
TEC
TORS - RB
-DSD1