Figure 4-3: Near-End Tests Menu - PictureTel Concorde 4500 Servicing Manual

TROUBLESHOOTING
4-32
The main objective of loopback tests is to determine if you can
receive error-free audio/visual feedback of your site. Since each of
these loopback tests involves different parts of the system, you can
use the tests to isolate where problems are occurring.
When you choose
View Near End Tests
you see this menu:
View Previous Menu
Exit Menu Session
Select System Self Test
Run Video-Audio Test Pattern
Run Video-Audio Loopback
Run Local Channel Loopback
[Run CSU Self Test]
Set Test Configuration
Stop Test

Figure 4-3: Near-End Tests Menu

* The Run CSU Self Test is only present when an ICS-4 board is
installed.
from the Diagnostics menu,
Near-End Tests
*