
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