
Reference Monitors User Handbook
57
REFERENCE MONITORS RM-4C8
2
Reference Monitors User Handbook
57
SERIAL INTERFACE
COMMANDS & RESPONSES
5
SERIAL INTERF
A
CE C
OMMANDS & RESPONSES
Serial Interface Commands & Responses Protocol
Sonifex SCi remote control software handles all communication with the Reference
Monitors via a convenient graphical user interface. However, this protocol is provided for
those users who wish to develop their own remote control applications or communicate
with the Reference Monitors using a text-based terminal program.
For more information on how to install and operate the SCi software, please see page 62.
Serial Data Format
Connection is 19200,e,8,1 with XON/XOFF flow control.
Commands are case-insensitive and all parameters are in hex.
Commands should be terminated in a carriage return character, a line feed character may
be sent but it will be ignored.
Further commands sent before the first command is acknowledged will be ignored.
Responses will be CR & LF terminated.
After power up a welcome string is sent – “Initialising Sonifex Reference Monitor…done”
Remote Control Commands
Command Description
Response
BSL:nn
- Select input Bank
ACK:
nn = 01 selects first Bank.
nn = 02 selects second Bank, etc.
DWN:*
- Download firmware update.
ACK:
Then send .DWN file as supplied.
ACK:
Faa:xxxxxxxxxxxxyyyyyyyyyyyyzzzzzzzzzzzz
ACK:
- Set user-variable equalisation coefficients
aa = EQ band number (01-05)
xxxxxxxxxxxx = five-byte coefficient 1 data.
yyyyyyyyyyyy = five-byte coefficient 2 data.
zzzzzzzzzzzz = five-byte coefficient 3 data.
FPL:x
- Front panel lock
ACK:
Where: x = 0 unlocks the front panel.
x = 1 locks the front panel (hex values 1 to F accepted and
have same effect as 1).
The front panel lock setting is not stored when power is lost.
Gaa:
- Get user-variable equalisation coefficients
Gaa: + data
as for Faa
Where: aa = EQ band number (01-05)
xxxxxxxxxxxx = five-byte coefficient 1 data.
yyyyyyyyyyyy = five-byte coefficient 2 data.
zzzzzzzzzzzz = five-byte coefficient 3 data.