9 appendix a – connector pin assignments – Shure Conference Phone User Manual
Page 21
English
Pin
Signal
Cable Color Code
1
Audio 1
black
2
Control 2
blue
3
-24 V
gray
4
GND
brown
5
GND
purple
6
GND
red/gray
7
GND
red
8
+24 V
pink
9
Control 3
yellow
10
Control 1
green
11
Mic Bus
white
12
Mode
red/blue
Pin
Signal
1
n.c.
2
TXD
3
RXD
4
n.c.
5
GND
6
n.c.
7
n.c.
8
n.c.
9
n.c.
9
20
9 Appendix A – Connector Pin Assignments
9
1
2
8
10
12
3
7
11
4
6
5
2
3
1
4
5
6
7
8
9
SUB-D 9 RS232
Minicon Bus Cable
Shield connected to connector housing