ADTRAN DS3 NIU3 PM, Установка и эксплуатация

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61213075L2-5E Issue 5, February 2011 15
Loopback and Test
The
Loopback and Test Commands
Screen, shown in
Figure 13 and Figure 14 on page 16, allows tests to be
initiated or terminated while graphically displaying the
test status of the NIU3 PM. The test patterns can be
initiated in both directions simultaneously, but a test
pattern and a loopback cannot both be active. A
loopback request is confirmed by typing “
Y
” on the next
screen. Figure 13 shows an active network loopback.
Figure 13. Loopback and Test Commands Screen, NTWK LBK Active
CIRCUIT ID: xxxxxxx 03/01/04 13:04:03
Press ESC to return to previous menu
Loopback and Test Commands
______
| NIU3 | 1. Deactivate Network Loopback
---------->|---- |-----------> 2. Loopback Customer
| | | 3. Dual Loopback
| | |
| | | 4. Send Pattern to Network
NET | | | CUST 5. Deactivate Pattern to Network
| | |
<----------|<--- |<---------- 6. Send Pattern to Customer
|______| 7. Deactivate Pattern to Customer
8. Pattern Type 2^23-1
9. Framing for Pattern C-BIT
Pattern 10. Timing Source for Pattern LOCAL
Errors
------- 11. Insert Bit Error
Network N/A 12. Reset Pattern Errors
Customer N/A
Selection: