Polycom SoundStructure C12 - Page 41

Specifications
3 - 9
SoundStructure device's audio input and output to other balanced or
unbalanced audio equipment, follow the wiring convention in the unbalanced
audio connections following figure.
T
S
T
T
S
STS
T
S
T
S
T
T
S
S
RT
T
R
S
S
12
3
XLR Female
XLR Male
21
3
Balanced Audio Connections
Unbalanced Audio Connections