Huawei 9000 VCT V100R011 Administrator's Manual page 171

HUAWEI 9000 HD Video Terminal
Administrator Guide
Figure 11-4
and network send/receive module.
Normal audio signal streams are as follows:
l
l
Normal video signal streams are as follows:
l
l
Sound and Color Bar Tests
Table 11-3
Table 11-3 Sound and color bar tests
Test
Sound test
Color bar test
l
l
Loopback Tests
The terminal can transmit audio or video data on a channel to simulate the actual application
and test whether the output is satisfactory. You can perform a local loopback test to check the
local network connection or a remote loopback test to check the remote network connection. If
a remote loopback test is performed, data is transmitted from the local site to a remote site, and
then back to the local site.
their objectives.
l
l
Issue 09 (2012-09-03)
shows the diagnostics of three modules, including the audio module, video module,
Local microphone → 1 → 5 → communication network → 6 → 7 → remote speaker
Local speaker ← 2 ← 5 ← communication network ← 6 ← 8 ← remote microphone
Local camera → 3 → 5 → communication network → 6 → 9 → remote display
Local display ← 4 ← 5 ← communication network ← 6 ← 10 ← remote camera
describes sound and color bar tests.
Item to Be Tested/Objective
2 audio output
4 video output
To perform a sound test, choose Diagnostics > Sound & Color Bar Test > Sound Test.
The terminal plays an embedded tone to test the audio output quality.
To perform a color bar test, and then choose Diagnostics > Sound & Color Bar Test >
Color Bar Test. The terminal displays 6 color bars on the display to test the color output
quality.
Table
WARNING
To enable the terminal to communicate with other terminals properly, the loopback test
must be stopped.
A remote video loopback test cannot be performed during a dual-stream conference.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
11-4shows the available loopback tests on the terminal and
11 Maintenance and Troubleshooting
Signal Stream
2 → speaker
4 → display
159