Huawei V100R001 User Manual page 124

HUAWEI TE30 Videoconferencing Endpoint
User Guide
Audio signals are transmitted in the following signal path:
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Video signals are transmitted in the following signal path:
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Sound and Color Bar Tests
Table 13-5
Table 13-5 Sound and color bar tests
Test
Sound
Color bar
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
Loopback Tests
Your TE30 can transmit audio or video data on a channel to simulate an 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.
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Table 13-6 Loopback tests
Test
Audio loopback
Video loopback
Digital loopback
Issue 01 (2013-03-27)
Local microphone → 1 → 5 → Communication network → 6 → 7 → Remote speaker
Local speaker ← 2 ← 5 ← Communication network ← 6 ← 8 ← Remote microphone
Local camera → 3 → 5 → Communications network → 6 → 9 → Remote monitor
Local monitor ← 4 ← 5 ← Communications network ← 6 ← 10 ← Remote camera
describes the sound and color bar tests.
Item to Be Tested
2 audio output
4 video output
To perform a sound test, choose Sound & Color Bar Test > Sound Test. While the test
audio stored on your TE30 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, check the color display quality.
Table 13-6
To enable your TE30 to communicate with other endpoints, stop the loopback test.
You cannot perform a loopback test on remote video if you are in a dual-stream
conference.
Item to Be Tested
Local audio module
Local video module
Local audio and video
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Signal Stream
2 → Speaker
4 → Monitor
describes the loopback tests.
Signal Stream
Microphone → 1 → 2 → Speaker
Camera → 3 → 4 → Monitor
The endpoint performs local audio and
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