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Remote Control
The BDA-3.14 can be controlled and monitored
through a variety of mechanisms including TCP/
IP when connected to your local area network,
USB, RS232, DC trigger, and IR. When using TCP/
IP, connect the SVC Ethernet port to the network as
well as the standard port. SVC Ethernet interface IP
address should be used to issue commands.
Serial Protocol
The BDA-3.14 can receive commands and can send
responses to each command. It can also (optionally)
broadcast automatic responses to certain system
events such as front panel button presses.
Commands can be sent over RS232, RS485 (with an
RS232 to RS485 interface) and TCP/IP using HTTP
cmd.cgi.
The RS232 input is a 3.5mm mini-jack configured as:
Tip
Ring
Transmit
Receive
Command Format
RS232
#
3
D2
C1
TCP/IP %23 3
D2
C1
The command format always begins with a
command start character.
The next two digits are the Device ID. The first of
which is always "3" for BDA-3.14s, and the second
will be "0" except when using RS232/RS485 in a
multi-drop configuration.
Next are C1 through C4 which comprise the
command name. These are typically uppercase
ASCII letters.
Following the command name are the arguments
or parameters for that command. These are two
or more ASCII characters.
The command is always terminated with a
Example of power up
command in RS232:
#30MPWR01<CR>
16
Sleeve
Ground
... CR
C2
C3
C4
P1
P2
C2
C3
C4
P1
P2
... .
Example of power up
command in TCP/IP:
%2330MPWR01.
carriage return character. For RS232, this is ASCII
code 13. TCP/IP commands are terminated with
a period (.) Responses are returned in the same
format as commands. Note that responses may
contain up to 320 characters. All characters
preceding the # or %23 and following <CR> or .
are ignored. Do not insert #, spaces, <LF>, <TAB>
or other non-ASCII characters inside the command
string.
The following are selected commands most useful
for setup and everyday operation. Find complete
documentation by accessing the BDA-3.14 over your
local area network or by contacting Bryston.
Comm. Param. Description
MMUT
Muting of audio
00
Mute Off
01
Mute On
02
Mute Toggle
QS
Query Status
MPWR
Switch between On and Standby
00
Off (standby)
01
On
02
Toggle On/Standby
QS
Query Status
MSRC
Select Input Source
00
Opto (TOSLINK)
01-04
HDMI 1 through HDMI 4
05-06
SPDIF 1, SPDIF 2
07
AES/EBU
08-09
USB 1, USB 2
QS
Returns the currently selected
source.
PTHD
Pass through AV of HDMI Source
while listening to non-HDMI
input.
01-04
HDMI 1 through HDMI 4
MVOL
Adjusts volume up or down.
UP
Volume up in 0.5dB increments
DN
Vol down in 0.5dB increments
xxx
Set to any value between 095
(-80dB) and 255 (0dB)
QS
Query status
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