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Using the Diagnostics Menus
7-19
Running System Self-Test with Loopback
To use this feature, you need special hardware loopback connectors.
If you have the loopback connectors, see the
Running the System Self-
Test with Loopback
document that came with the package to run the
test.
Running Video-Audio Test Pattern
To use the color bars and tone:
1. From the Diagnostics menu, choose View Near-End Test.
2. Choose Run Video-Audio Test Pattern.
The 1-kHz test tone is set to its nominal level.
3. Refer to Chapter 5 for procedures to adjust the video and audio
levels.
Echo and Tunneling Effects
You may occasionally hear an echo or tunneling effects, especially
when parties at different sites speak at the same time. To Þx the echo,
tell the far-end party to decrease the monitor volume and increase
the keypad volume. To Þx the tunneling, tell the far-end party to
increase the monitor volume and decrease the keypad volume.
The echo canceler cannot cancel loudspeaker distortion. If you hear
distortion, turn down your keypad volume control.
Running Video-Audio Loopback
When you choose
Run Video-Audio Loopback
from the Near-End Tests
menu, your systemÕs analog video and audio signals are displayed
F Y I
F.Y.I.
If you have any questions, you can call your PictureTel
service provider.
F Y I
F.Y.I.
The keypad volume and mute buttons are disabled during
this test.
Содержание Concorde 4500
Страница 1: ...Concorde 4500 Administrator s Guide ...
Страница 6: ......
Страница 12: ......
Страница 18: ......
Страница 19: ...Introducing the Concorde 4500 ...
Страница 38: ......
Страница 39: ...Connecting and ConÞguring Your Network ...
Страница 68: ......
Страница 69: ...Managing the Dialing Directory ...
Страница 79: ...ConÞguring General Options for Your System ...
Страница 99: ...ConÞguring and Adjusting the Video and Audio ...
Страница 139: ...ConÞguring Ports ...
Страница 140: ...This chapter describes how to Set the control ports Set the data ports ...
Страница 153: ...Obtaining Diagnostic Information ...
Страница 185: ...Resolving Problems ...
Страница 202: ......
Страница 206: ......
Страница 226: ......