Polycom HDX 8000 series User Manual

Administrator’s Guide for Polycom HDX Systems
5–12 Polycom, Inc.
Via a Dial-Up Connection to the System’s RS-232 Serial Port
Closed captioners can provide captions from inside the conference room, or
from a remote location, via a dial-up connection 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 via a dial-up connection:
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 Establish a dial-up connection between the computer and the Polycom
HDX 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.
Stenograph
machine
Line 21
modem
format
PC with computer-aided
transcription software
Modem
Modem
Phone line
Polycom
RS-232
HDX System
Serial
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Polycom HDX 8000 series Specifications

General

Microphone	Polycom HDX Microphone Array
Network Protocols	H.323, SIP
Network Interface	10/100/1000 Ethernet
Network Interfaces	10/100/1000 Ethernet
Video Standards	H.263, H.264
Video Resolution	720p, 1080p
Content Sharing	H.239, People+Content
Audio Standards	G.711, G.722, G.728, G.729A
Encryption	H.235 (AES)
Camera	Polycom EagleEye HD camera
Data Standards	H.239
Video Inputs	HDMI, DVI-I
Video Outputs	HDMI, DVI-I
Audio Inputs	3.5mm stereo line-in
Audio Outputs	RCA
Display Outputs	HDMI, DVI-I