Rotel A12 / A14 /A14MKII
RS232 / IP ASCII Controller Command List
Date Version Update Description
August 25, 2016 1.00 Original Specification
The A12 , A14 and A14MKII support 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. A14 will also support IP control using the same
command formats.
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 will have a terminating “$” character.
It is up to the sending/receiving control application to properly parse and process the
packets.
Baud Rate Parity Valid Data Bits Stop Bit Value Handshaking Data Type
115200 N 8 1 None String
Connection Settings
IP Control Settings
The A14 and A14MKII will only accept and respond to IP control commands if the
product is connected to a local network and has a valid IP address.
Commands will be accepted via TCP port 9590, and the unit will send responses back via
the same port. The command and response format is identical to the serial commands.
Communication Protocol
Command and response messages are included on the following pages.
Automatic status update information can be enabled/disabled using the
“rs232_update_on” and “rs232_update_off” commands.
With RS232 update set to ON, any status changes to the unit will be transmitted via
RS232. With RS232 update set to OFF, the unit will not send any feedback unless polled
by the controller.
1
Section 1: Control Command List
A12/A14/A14MKII ASCII
POWER & VOLUME COMMANDS
power_on! Power On power=on$
power_off! Power Off power=standby$
power_toggle! Power Toggle power=on/standby$
vol_up! Volume Up volume=##$
vol_dwn! Volume Down volume=##$
vol_nn! Set Volume to level n (01 - 96) volume=##$
mute! Mute Toggle mute=on/off$
mute_on! Mute On mute=on$
mute_off! Mute Off mute=off$
SOURCE SELECTION COMMANDS
cd! Source CD source=cd$
coax1! Source Coax 1 source=coax1$
coax2! Source Coax 2 source=coax2$
opt1! Source Optical 1 source=opt1$
opt2! Source Optical 2 source=opt2$
aux1! Source Aux 1 source=aux1$
aux2! Source Aux 2 source=aux2$
tuner! Source Tuner source=tuner$
phono! Source Phono source=phono$
usb! Source Front USB source=usb$
bluetooth! Source Bluetooth source=bluetooth$
pcusb! Source PC-USB source=pc_usb$
SOURCE CONTROL COMMANDS
play! Play Source n/a
stop! Stop Source n/a
pause! Pause Source n/a
trkf! Track Forward/Tune Up n/a
trkb! Track Backward/Tune Down n/a
TONE CONTROL COMMANDS
bypass_on! Tone Bypass On bypass=on$
bypass_off! Tone Bypass Off bypass=off$
bass_up! Bass Up bass=000/+##/-##$
bass_down! Bass Down bass=000/+##/-##$
bass_-10! Set Bass to -10 bass=-10$
bass_000! Set Bass to 0 bass=000$
bass_+10! Set Bass to +10 bass=+10$
treble_up! Treble Up treble=000/+##/-##$
treble_down! Treble Down treble=000/+##/-##$
treble_-10! Set Treble to -10 treble=-10$
Command Description Unit Response
2
A12/A14/A14MKII ASCII Command Description Unit Response
treble_000! Set Treble to 0 treble=000$
treble_+10! Set Treble to +10 treble=+10$
BALANCE CONTROL COMMANDS
balance_r! Balance Right balance=000/L##/R##$
balance_l! Balance Left balance=000/L##/R##$
balance_L15! Set Balance to Max Left balance=L15$
balance_000! Set Balance to 0 balance=000$
balance_R15! Set Balance to Max Right balance=R15$
SPEAKER OUTPUT COMMANDS
speaker_a! Toggle Speaker A Output speaker=a/a_b/off$
speaker_b! Toggle Speaker B Output speaker=b/a_b/off$
speaker_a_on! Speaker A Output On speaker=a/a_b$
speaker_a_off! Speaker A Output Off speaker=b/off$
speaker_b_on! Speaker B Output On speaker=b/a_b$
speaker_b_off! Speakler B Output Off speaker=a/off$
OTHER COMMANDS
dimmer! Toggle display dimmer dimmer=#$
dimmer_0! Set display to brightest setting dimmer=0$
dimmer_1! Set display to dimmer level 1 dimmer=1$
dimmer_2! Set display to dimmer level 2 dimmer=2$
dimmer_3! Set display to dimmer level 3 dimmer=3$
dimmer_4! Set display to dimmer level 4 dimmer=4$
dimmer_5! Set display to dimmer level 5 dimmer=5$
dimmer_6! Set display to dimmest setting dimmer=6$
RS232 FEEDBACK COMMANDS
rs232_update_on! Set RS232 Update to Auto (On) update_mode=auto$
rs232_update_off! Set RS232 Update to Manual (Off) update_mode=manual$
3
Section 2: Feedback Request Command List
Command: power?
Description: Request current power status
Return String(s): power=on$ / power=standby$
Return Description: Current power status
Example: power=on$
Command: source?
Description: Request current source
source=cd$ / source=coax1$ / source=coax2$ / source=opt1$ /
Return String(s):
Return Description: Current source
Example: source=usb$
Command: volume?
Description: Request current volume value
Return String(s): volume=##$
Return Description: 2 digit current volume level
Example: volume=40$
source=opt2$ / source=tuner$ / source=phono$ / source=usb$ /
source=aux1$ / source=aux2$ / source=pc_usb$ / source=bluetooth$
Command: mute?
Description: Request current mute status
Return String(s): mute=on$ / mute=off$
Return Description: Current mute status
Example: mute=off$
Command: bypass?
Description: Request current tone bypass state
Return String(s): bypass=on$ / bypass=off$
Return Description: Current tone bypass state
Example: bypass=off$
Command: bass?
Description: Request current bass level
Return String(s): bass=###$ (+01-10, -01-10, 000)
Return Description: Current tone control bass level
Example: bass=+02$
Command: treble?
Description: Request current treble level
Return String(s): treble=###$ (+01-10, -01-10, 000)
Return Description: Current tone control treble level
Example: treble=-01$
4
Command: balance?
Description: Request current balance setting
Return String(s): balance=###$ (L01-15, R01-15, 000)
Return Description: Current balance setting
Example: balance=L03$
Command: freq?
Description: Request current frequency for digital source input
Return String(s):
freq=off$ / freq=32$ / freq=44.1$ / freq=48$ / freq=88.2$ / freq=96$ /
freq=176.4$ / freq=192$
Return Description: Current frequency for digital source input
Example: freq=48$
Command: speaker?
Description: Request current active speaker outputs
Return String(s): speaker=a$ / speaker=b$ / speaker=a_b$ / speaker=off$
Return Description: Current active speaker outputs
Example: speaker=a$
Command: dimmer?
Description: Request current front display dimmer level
Return String(s):
dimmer=0$ / dimmer=1$ / dimmer=2$ / dimmer=3$ / dimmer=4$ /
dimmer=5$ / dimmer=6$
Return Description: Current front display dimmer level
Example: dimmer=3$
Command: pcusb?
Description: Request current PC-USB class
Return String(s): pcusb_class=1$ / pcusb_class=2$
Return Description: Current PC-USB class
Example: pcusb_class=1$
Command: version?
Description: Request the main CPU software version
Return String: version=#.##$
Return Description: Rotel main CPU software version
Example: version=1.09$
Command: pc_version?
Description: Request the PC-USB software version
Return String: pc_version=#.##$
Return Description: Rotel PC-USB software version
Example: pc_version=1.13$
5
Command: ip?
Description: Request the IP address of the product (A14 only)
Return String: ipaddress=###.###.###.###$
Return Description: Current IP address
Example: ipaddress =192.168.100.8$
Command: mac?
Description: Request the MAC address of the product (A14 only)
Return String: mac=############$
Return Description: MAC address (uppercase characters)
Example: mac=0CEFAF90125E$
Command: model?
Description: Request the model number
Return String: model=text$
Return Description: Rotel model number
Example: model=a12$
Command: discover?
Description: Request the device to identify itself on the network (A14 only)
Return String: discover=ip=###.###.###.### port=#### mac=############$
Return Description: Device’s IP address, port number and MAC address
Example: discover=ip=192.168.100.25 port=9596 mac=0cefaf90125e$
6
Loading...