Diagnostics, Status, and Utilities
Polycom, Inc.
190
Diagnostics
Diagnostic Screen
Description
Near End Loop
Tests the internal audio encoders and decoders, the external microphones and speakers,
the internal video encoders and decoders, and the external 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.
PING
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.
Trace Route
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.
Color Bars
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.
Speaker Test
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.
If you run the test from the Polycom RealPresence Group system web interface during a
call, the people at the site you are testing will hear the tone, but you will not.
Audio Meter
Measures the strength of audio signals from the microphone or microphones, far-site
audio, and any device connected to the audio line in.
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To check the microphone or microphones, speak into the microphone.
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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
b3dB 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.