Australian Monitor AMD200 - Manual (Page 14)

Port & Protocol Information
The AMD100/200 has a RJ45 connector on the rear of the unit. This
connector is used for the ICON-CP control panel and also for controlling the
device with an external control system via RS485.
Below is the pinout of the RJ45:
Pin 1 = NC
Pin 2 = GND
Pin 3 = RS485-A
Pin 4 = Power (+33 VDC, supplied by AMD100/200 up to 500 mA)
Pin 5 = Power (+33 VDC, supplied by AMD100/200 up to 500 mA)
Pin 6 = RS485-B
Pin 7 = GND
Pin 8 = NC
All parameters are constantly updated in the AMD100/200. If a control is
adjust by another source e.g. ICON-CP all control devices will be update
(3rd Party control and PC Gui).
Baud rate: 19200
Bits: 8
Parity: No
Stop bits: 1
The protocol is an ASCII protocol – all characters in the string are ASCII chars.
Abinary value ranging between hexadecimal 00 and FF is transmitted as two
ASCII chars. All command strings start with the % character and end with a
carriage return – shown as in this document and equal to the single
ASCII value of 13 (0x0D).
Available Parameters
The following parameters can be externally controlled:
Mic/Line Input 1 - 8 (1 - 4 for AMD100), BGM source and Master virtual
volume control.
Mic/Line input 1-8 (1 - 4 for AMD100), BGM source and Master mute.
BGM Source select
Low Power Mode
Virtual fi lter control (bass and treble)
Filter bypass (bass and treble)
Power amp fault indication
Virtual Volume Controls:
To adjust the virtual volume control of the mic/line inputs, BGM source or
Master.
%PVAL:xxyy
“xx” represents the parameter ID to be adjusted and “yy” is the new value.
Parameter ID’s
01 = Mic/Line 1 Volume
02 = Mic/Line 2 Volume
03 = Mic/Line 3 Volume
04 = Mic/Line 4 Volume
05 = Mic/Line 5 Volume
06 = Mic/Line 6 Volume
07 = Mic/Line 7 Volume
08 = Mic/Line 8 Volume
09 = Stereo BGM Volume
0C = Master Volume
The value of yy can range between 0x00 (off) and 0xE1 (225 = +12 dB of
gain). This allows half dB steps throughout the range where for example:
0x00 = Off
0x01 = -100 dB
0xC9 = 0 dB
0xE1 = +12 dB
To request the current level of a source:
%PVAL:xx?? where “xx” is the source.
When a volume is adjusted from another source e.g. ICON-CP the
AMD100/200 will send:
%PVAL=xxyy where “xx” is the source and “yy” is the
current value.
PAGE 14 AMD100/200 INSTALLATION AND OPERATION MANUAL
RS485 PROTOCOL