Polycom C12, C16, C8, SR12 Making Audio Connections

Hardware Installation Guide for the Polycom SoundStructure C16, C12, C8, And SR12
2 - 14
At rates at or above 38,400 bps, it is recommended that flow control be enabled
on the control system. The SoundStructure device will detect the use of flow
control automatically - no user adjustment is required to turn flow control on
or off on the SoundStructure devices.
The maximum length of an RS-232 cable is determined by the overall
capacitance of the cable. For practical purposes, the length of the RS-232 cable
should not exceed fifty feet.
Making Audio Connections
SoundStructure devices provide balanced audio input and output connections
that are terminated with 3.5 mm terminal blocks. For each balanced analog
input or output on the SoundStructure rear-panel, the first pin should be
connected to the positive signal, the second pin is connected to the negative
signal, and the third pin is chassis ground as shown in the balanced audio
SoundStructure Control System
Pin Signal Pin Signal
1- 1 -
2TX 2 RX
3RX 3 TX
4- 4 -
5 Ground 5 Ground
6- 6 -
7 CTS 7 RTS
8 RTS 8 CTS
9- 9 -