Polycom realpresence group series Administrator's Manual page 207

This screen includes the following system diagnostic details:
Diagnostic Screen
Near End Loop
PING
Trace Route
Color Bars
Speaker Test
Audio Meter
Polycom, Inc.
Description
Tests the internal audio encoders and decoders, the external microphones and speakers,
the internal video encoders and decoders, audio hardware, and the external microphones,
speakers, cameras, and monitors.
Monitor 1 displays the video and plays the audio that would be sent to the far site in a call.
This test is not available when you are in a call.
Tests whether the system can establish contact with a far-site IP address that you specify.
PING returns abbreviated Internet Control Message Protocol results. It returns H.323
information only if the far site is configured for H.323. It returns SIP information only if the
far site is configured for SIP.
If the test is successful, the Polycom RealPresence Group system displays a message.
Tests the routing path between the local system and the IP address entered.
If the test is successful, the Polycom RealPresence Group system lists the hops between
the system and the IP address you entered.
Tests the color settings of your monitor for optimum picture quality.
If the color bars generated during the test are not clear, or the colors do not look correct,
the monitor needs to be adjusted.
Tests the audio cable connections. A 473 Hz audio tone indicates that the local audio
connections are correct.
If you run the test from the system during a call, the far site will also hear the tone.
Measures the strength of audio signals from the microphone or microphones, far-site
audio, and any device connected to the audio line in.
• To check the microphone or microphones, speak into the microphone.
• To check far-site audio, ask a participant at the far site to speak or call a phone in the
far-site room to hear it ring.
The Audio Meters indicate peak signal levels. Set signal levels so that you see peaks
between +3dB and +7dB with normal speech and program material. Occasional peaks of
+12dB to +16dB with loud transient noises are considered acceptable. A meter reading of
+20dB corresponds to 0dBFS in the Polycom RealPresence Group system audio. A signal
at this level is likely clipping the audio system.
Meters function only when the associated input is enabled.
Note: Some audio meters are unavailable when a SoundStructure digital mixer is
connected to the Polycom RealPresence Group system.
Troubleshoot
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