ADTRAN HDSL2 - Manual (Page 40)

Control Port Operation HDSL2 for General Distribution Installation and Maintenance Practice
30 61223HDSL2L2-5B
Option 4, Enter Test Timeout from the BERT Test Screen displays the Timeout Screen ( Figure
28 ). The time out can run for a specific duration by entering the hours and/or minutes, or can
run indefinitely by entering 00:00, as indicated by the note on the screen. With no test
running the Toggle Test Direction option from the BERT Test Screen allows the toggling of the
test signal in the opposite direction (from customer to network and vice versa).
Figure 28. BERT Test Functions - Enter Test Timeout Option
When option 1, (Re)start Pattern is selected to start the test, option 5 changes to Inject Bit
Errors.
This option is used to display the screen shown in Figure 29 . This allows the insertion
of errors from this test origination point to validate the test results.
Figure 29. BERT Inject Errors Screen
Shelf: 1 Slot: 18 Total Access System 03/01/05 09:29
Unacknowledged Alarms: None
Circuit ID:
CUSTOMER Timeout Screen
Test Timeout(Hr:Min) = 02:00
----------------------------
1. Change Timeout
*NOTE: When timeout is set to 00:00, the
test will run indefinitely.
Selection:
Shelf: 1 Slot: 14 Total Access System 03/01/05 09:29
Unacknowledged Alarms: None
Circuit ID:
BERT Test Screen
Test Results
----------------------------------------------------
Test Direction: Customer
Unframed Pattern Generation: ON
Pattern: 2^23 Pattern
Line Coding: B8ZS
Bit Errors: 0000000
Bit Error Rate: 0.0E-05
Pattern Sync: ACQUIRED
Pattern Sync Losses: 000
Test Length (HH:MM:SS): 02:00:00
Time Elapsed (HH:MM:SS): 00:02:32
----------------------------------------------------
1. Number of Errors to Inject = 001 (Maximum=255)
2. Inject Bit Error
3. (Re)start
Selection: