RS232 Protocol

1
Rotel RDD-1580
RS232 ASCII Controller Command List
The RDD-1580 supports an ASCII based RS232 protocol. The RS232 hardware
does not support flow control so care needs to be take when sending and receiving data
to avoid packet loss.
All commands sent to the attached Rotel device must have a terminating “!” character.
Example Command: power_on!
Note: Do not include any spaces in the command, and do not include a carriage return
or line feed after the command, only the “!” terminating character.
Status information from the attached Rotel product with either have a terminating “!”
character or a byte count for variable length text data that may include a “!” in the
returned message. It is up to the sending/receiving control application to properly parse
and process the packets.
Note: The byte count only includes the text data and not the length or “,” character.
Connection Settings
Baud Rate Parity Valid Data Bits Stop Bit Value Handshaking Data Type
115200 N 8 1 None String
Communication Protocol
Command and response messages are included on the following pages.
Date Version Update Description
December 26, 2013 1.00 Original Specification