Via The System's Serial Rs-232 Port - Polycom VSX 3000 Administrator's Manual

Administrator's Guide for the VSX Series

Via the System's Serial RS-232 Port

5 - 10
To supply closed captions via a dial-up connection:
1. Ensure that the computer and the VSX system are configured to use the
same baud rate and parity settings.
2. Go to System > Admin Settings > General Settings > Serial Port and set
the RS-232 Mode to Closed Caption.
3. Establish a dial-up connection between the computer and the VSX
system.
a. Connect a null modem adapter to the RS-232 serial port.
b. Connect an RS-232 cable to the modem and to the null modem
adapter.
Connect the modem to a phone line.
c.
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.
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.
Closed captioners can provide captions from inside the conference room,
using equipment connected directly to the serial port of the VSX system, as
shown in the following diagram.
Stenograph
machine
To supply closed captions using equipment connected directly to the serial port:
1. Ensure that the computer and the VSX system are configured to use the
same baud rate and parity settings.
2. Go to System > Admin Settings > General Settings > Serial Port and set
the RS-232 mode to Closed Caption.
3. On the computer, start the transcription application.
4. Enter text using the stenographic machine connected to the computer.
5. To stop sending closed captions, close the transcription application.
PC with computer-aided
transcription software
VSX System
RS-232
Serial