ADTRAN HDSL2 - Manual (Page 37)

HDSL2 for General Distribution Installation and Maintenance Practice Control Port Operation
61223HDSL2L2-5B 27
Loopbacks and Test
The Loopback and Test Commands screen (
Figure 24 ) provides the user with the ability to
initiate or terminate all available HDSL2 loopbacks. Each HDSL2 circuit component can be
looped toward the network or customer from this screen. Unit self tests can also be initiated
from this screen. A “Loop Down ALL Units” command will be available in lieu of the “Run Self
Tests” option when any loopback is active.
Figure 24. Loopback and Test Commands Screen
Total Access 3000 H2TU-C Loopback and Test Screen
The Total Access 3000 H2TU-C (
Figure 25 ) has the following additional features:
• Equipment Jack - Select Network or Customer for testing purposes. Refer to “Appendix C,
Front Panel DSX and MUX Mode Test Access” for details.
• BERT Test Functions
Circuit ID:HNTSVLALHDSL2 03/01/05 09:29:45
Press ESC to return to previous menu
Loopback and Test Commands
______ ______
|H2TUC | |H2TUR |
------>| | | |------>
| | | |
NET | |<--------->| | CUST
| | | |
<------| | | |<------
DSX-1 |______| |______| DS1
1. Run Self Tests
2. H2TU-C Loopup Network
3. H2TU-C Loopup Customer
4. H2TU-R Loopup Network
5. H2TU-R Loopup Customer
Selection: