Protocol

2
IP Control Settings
The RA-1592 will 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 display update information can be enabled/disabled using the
“display_update_auto” and “display_update_manual” commands.
In automatic mode each time the display changes the new display line(s) will be sent.
In manual mode the display updates must be requested each time a refresh of the
display information is desired. This primarily applies to Front USB metadata information.
Basic status information such as volume, power or source changes will still be provided
automatically.
Section 1: Control Command List
RA-1592 ASCII Command Description Unit Response
POWER & VOLUME COMMANDS
power_on! Power On power=on!
power_off! Power Off power=standby!
power_toggle! Power Toggle power=on/standby!
volume_up! Volume Up volume=##!
volume_down! Volume Down volume=##!
volume_min! Set Volume to Min volume=min!
volume_n! Set Volume to level n (n = 1 - 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! /
source=analog_cd!
coax1! Source Coax 1
source=coax1! /
source=coax1_cd!
coax2! Source Coax 2
source=coax2! /
source=coax2_cd!
coax3! Source Coax 3
source=coax3! /
source=coax3_cd!
opt1! Source Optical 1 source=opt1!
opt2! Source Optical 2 source=opt2!
opt3! Source Optical 3 source=opt3!
aux! Source Aux source=aux!
tuner! Source Tuner source=tuner!