User`s guide

Administrator’s Guide for Polycom HDX Systems
4–22 Polycom, Inc.
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 RS-232 Mode to Vortex Mixer for the appropriate port.
Refer to the Polycom Vortex documentation for details on configuring the
mixer.
Settings for Non-Polycom Microphones
To configure a Polycom HDX 9004, Polycom HDX 9002, or Polycom HDX 9001
system to use devices connected directly to audio input 1:
1 Do one of the following:
— In the local interface, go to System > Admin Settings > Audio >
Inputs/Outputs (select if necessary).
— In the web interface, go to Admin Settings > Audio
2 Do the following:
a Set Input Type to Microphone.
b Enable Echo Canceller.
c (Polycom HDX 9000 series only) Enable Phantom Power if the
microphone is not amplified.
d Adjust the audio Input Type Level if necessary.
e Speak into the microphones that are connected to the audio line
inputs. The audio meter should peak at about 5 dB for normal speech.