American Telecom AM64/128A - Manual (Page 24)

Test Menu AM64/128A User Manual
24
2/ Pattern display
The pattern display usually shows Injecting 0s
Pressing SELECT will cause binary 1s to be injected (e.g. for loop verification): Injecting 1s
This pattern will continue to be injected until the SELECT key is pressed again, (or the mode is exited).
3/ Transparency display
The Transparency option is usually disabled, when the display reads: Injection Mode
Pressing SELECT on this option changes the display to: Transparent Mode
Binary 0 injection is then disabled and the data path is direct to the DTE or data tester. Selecting
Transparent mode changes the pattern display to show:
No Injection
The facility to inject binary 1's remains however. The SELECT key now toggles between no pattern injected
and injecting binary 1's.
4/ Time display
The time display simply shows the time since the test has started in seconds.
For example Time 000010 If the count is stopped the display is T Stop 000010
Using the transparent mode of the Data Test to test the local interface cable (alternatively a local loop can
be used with the local DTE)