Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
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RS-232
A SoundStructure device’s RS-232 port is a female DB9 DCE supporting a
fixed data format of eight data bits, no parity, and one stop bit. The supported
flow control options are hardware (RTS/CTS) and none. The supported baud
rates are 9600, 19200, 38400, 57600, and 115200 with a default baud rate of 9600.
This interface is primarily intended for connecting a control system (such as
AMX or Crestron) to a SoundStructure device. However, other types of con-
trollers (such as a Windows PC running SoundStructure Studio) may use this
interface as well.
The following figure shows the RS-232 pin-out on the rear-panel of the Sound-
Structure device and requirement for a straight-through cable for connection
to an RS-232 port on a control system.
Pin 1Pin 5
Pin 9 Pin 6
Pin Signal
1 --
2 TX
3 RX
4 --
5 Ground
6 --
7 CTS
8 RTS
9 --
SoundStructure
Pin Signal
1 --
2 RX
3 TX
4 --
5 Ground
6 --
7 RTS
8 CTS
9 --
Control System
Straight-through cable