RS232 Protocol

2
Section 1: Control Command List
RA-1070 HEX Command Description
POWER & VOLUME COMMANDS
FE 03 04 10 00 17 Power Toggle
FE 03 04 10 01 18 Power Off
FE 03 04 10 02 19 Power On
FE 03 04 10 13 2A Volume Up
FE 03 04 10 14 2B Volume Down
FE 03 04 10 15 2C Mute Toggle
SOURCE SELECTION COMMANDS
FE 03 04 10 03 1A Source Phono
FE 03 04 10 04 1B Source CD
FE 03 04 10 05 1C Source Tuner
FE 03 04 10 06 1D Source Video
FE 03 04 10 07 1E Source Aux 1
FE 03 04 10 08 1F Source Aux 2
FE 03 04 10 09 20 Source Tape 1
FE 03 04 10 0A 21 Source Tape 2
RECORD SOURCE SELECTION COMMANDS
FE 03 04 10 0B 22 Record Source Phono
FE 03 04 10 0C 23 Record Source CD
FE 03 04 10 0D 24 Record Source Tuner
FE 03 04 10 0E 25 Record Source Video
FE 03 04 10 0F 26 Record Source Aux 1
FE 03 04 10 10 27 Record Source Aux 2
FE 03 04 10 11 28 Record Source Tape 1
FE 03 04 10 12 29 Record Source Tape 2
FE 03 04 10 1A 31 Record Function Select
FRONT PANEL SOURCE LABEL & DISPLAY COMMANDS
FE 03 04 10 16 2D Character Enter
FE 03 04 10 17 2E Next Character
FE 03 04 10 18 2F Previous Character
FE 03 04 10 19 30 Source Label Change
FE 03 04 10 1B 32 Front Panel Display On/Off
Section 2: Feedback String Format
Standard Response String Format
Start Count Device ID Type Data0 – Data10 (11 Bytes) Checksum
0xFE 0xXX 0x04 0x20 ASCII Characters 0xXX
The ASCII data will contain the source and record source name information and should
be parsed to obtain unit status.