t&mSystems Project MIX818 - Manual (Page 14)

AA 21 line input volume AM
AA: data head
21 : feedback data from wall plate
to Matrix line input: source input
01 : line 1
02 : line 2
08 : line 8
09 : remote sources input
volume: volume level
00 : 0 level
01:1 level
AM: (accumulation= 2nd data byte
+ 3rd data byte + 4th data byte)
Inquiry Data To Extension Matrix
The Matrix inquiry data to the extension Matrix
format as:
AA 30 00 00 AM
5. SPECIFICATIONS
Frequency Response
Deviation
AC Power Supply
DC Power Supply
Line Input Sensitivity
Line Input Impedance
Local Input Sensitivity
Local Gain
MIC1 Sensitivity
MIC1 Impedance
MIC Level Control
Paging Console Sensitivity
Paging Console Gain Control
Zone Output
Zone Gain Control
Zone Output Level Control
S/N Ratio
Isolation Degree
Channel Crosstalk
Gain Deviation
T.H.D
Channel Phase Position
Frequency Response
Input 100Hz sine wave signal
Conditions
Voltage selector between 115V & 230V
Clockwise rotation gain to increase
MIC1 input, 80Hz-18KHz
20Hz-20KHz
Line1-8 inputs and remote source input,
20Hz-20KHz
20Hz-20KHz
20Hz-20KHz
Non-weighting
Input 100Hz sine wave signal
Balanced output
Input 1KHz sine wave signal & output 0.775V
Balanced input
Clockwise rotation gain to increase
Parameters
AC 115- 230V; 50/60Hz
Specific voltage and
frequency values to the
machine to prevail in kind.
+24V
195mV-2.0V
47K
500mV
8dB
600
8dB
500mV
8dB
0.775V
8dB
10dB
<60dB
>40dB
>50dB
<2dB
<0.07%
Same phase
+L/-3dB
+L/-3dB
Deviation
10%
4V
RS 485 COMMUNICATION PROTOCOL
The feedback data from the wall plate to the Matrix
delivered in the following format:
Feedback Data From The Wall Plate
10