20
Appendix B: Remote RS232 Control
RJ45 connector pin assignments
Pin Function Usage
1 +Vref CSR-V
2 Vol Ctrl CSR-V
3 NC none
4 Gnd Serial
5 Rx Serial
6 Tx Serial
7 NC none
8 Gnd CSR-V
Command Action Comment
mu 0 0 mute channel 1
mu 0 1 unmute channel 1
mu 1 0 mute channel 2
mu 1 1 unmute channel 2
sl 0 sleep
sl 1 wake up
vs 0 x set channel 1 volume to x
x is an integer from 0 to 37 (refer to table on p. 21)
vs 1 x set channel 2 volume to x
x is an integer from 0 to 37 (refer to table on p. 21)
vg 0 get channel 1 current volume value returns an integer between 0 and 37
vg 1
get channel 2 current volume value
returns an integer between 0 and 37
vr get machine information
Returns output such as:
CSA1300Z & CH1 of CSA2300Z
Serial Communication Settings
List of Serial Commands
BAUD rate 115200
8 bit data
1 bit start
1 bit stop
No parity
Pin 4
View of Rear Panel Receptacle
Pin 3
Pin 2
Pin 1
Pin 5
Pin 6
Pin 7
Pin 8
CPU version: 04000008
Model: CSA1300
Sleep State: k
ch1 vol=m, ch2 vol=n
ch1 mute=y, ch2 mute=z
Where
k: 0=sleep, 1=wake
m, n: 0, 1.... 36, 37
y, z: 0=muted, 1= unmuted
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