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HUAWEI VP9050 Executive Video Terminal
User Guide
13 Maintenance and Troubleshooting
Issue 03 (2011-12-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
90
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. Table 13-4 shows the available loopback tests on the terminal
and their objectives.
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.
Table 13-4 Loopback tests
Test
Item to Be
Tested/Objective
Signal Stream
Local audio
loopback
Local audio module Microphone → 1 → 2 → speaker
Local video
loopback
Local video module Camera → 3 → 4 → display
Remote audio
loopback
Remote audio module
Network transmission
Microphone → 1 → 5 → 6 → 7 → 8 →
6 → 5 → 2 → speaker
Remote video
loopback
Remote video module
Network transmission
Camera → 3 → 5 → 6 → 9 → 10 → 6
→ 5 → 4 → display
Network Test
Table 13-5 Network test
Test
Item to Be
Tested/Objective
Signal Stream
Network test IP access Terminal → LAN or public network
Before a test, ensure that the terminal is connected to an IP network properly, the indicator of
the LAN network interface turns green, and the IP parameters are set correctly.
In IP address, enter an IP address. Ensure that the IP address entered and the IP address
of the terminal are in different network segments. Select Start. If the test is passed, the
gateway settings and the IP address of the terminal are correct.
If the terminal exists in a private network, enter an IP address in a public network in IP
address, and then select Start. If the test is passed, the gateway settings, the NAT
address, and the IP address of the terminal are correct.