Huawei TE80 - Page 131

HUAWEI TE80 Videoconferencing Endpoint
Administrator Guide
12 Troubleshooting
Issue 02 (2014-03-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Figure 12-1 Diagnostics model
Figure 12-1 shows the diagnostics of three modules: audio module, video module, and
network transception module.
Audio signals are transmitted in the following signal path:

Local microphone → 1 → 5 → Communication network → 6 → 7 → Remote speaker

Local speaker ← 2 ← 5 ← Communication network ← 6 ← 8 ← Remote microphone
Video signals are transmitted in the following signal path:

Local camera → 3 → 5 → Communications network → 6 → 9 → Remote display
device

Local display device ← 4 ← 5 ← Communications network ← 6 ← 10 ← Remote
camera
Sound and Color Bar Tests
Table 12-1 describes sound and color bar tests.
Table 12-1 Sound and color bar tests
Test
Item to Be Tested
Signal Stream
Sound
2 audio output
2 → Speaker
Color bar
4 video output
4 → Display device

To perform a sound test, choose Sound & Color Bar Test > Sound Test. While the test
audio stored on your endpoint plays, check the sound quality.

To perform a color bar test, choose Sound & Color Bar Test > Color Bar Test. While
seven color bars are displayed on the display device, check the color display quality.
Loopback Tests
During a loopback test, your endpoint transmits audio or video data through a channel to
simulate actual working conditions and tests whether the output is satisfactory. You can