Content and Closed Captions
Polycom, Inc. 5–13
c Connect the modem to a phone line.
d Configure the modem for 8 bits, no parity.
You may need to configure the modem to answer automatically. You may
also need to configure it to ignore DTR signals.
5 On the computer, start the transcription application.
6 Enter text using the stenographic machine connected to the computer.
7 To stop sending closed captions, close the transcription application.
Via the System’s Serial RS-232 Port
Closed captioners can provide captions from inside the conference room,
using equipment connected directly to the serial port of the Polycom HDX
9000 series, Polycom HDX 8000 series, or Polycom HDX 7000 series system, as
shown in the following diagram.
To supply closed captions using equipment connected directly to the serial port:
1 Ensure that the computer and the Polycom HDX system are configured to
use the same baud rate and parity settings.
2 Do one of the following:
— In the local interface, go to System > Admin Settings > General
Settings > Serial Port (select if necessary).
— In the web interface, go to Admin Settings > General Settings >
Serial Port.
3 Set the RS-232 mode to Closed Caption.
4 On the computer, start the transcription application.
5 Enter text using the stenographic machine connected to the computer.
6 To stop sending closed captions, close the transcription application.
Stenograph
machine
PC with computer-aided
transcription software
Polycom
RS-232
Serial
HDX System
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