Troubleshooting and Maintenance
5-21
9161-A2-GH30-20
September 1997
Sending and Monitoring Pattern Tests
The pattern tests enable a T1 access unit either to send or monitor a known bit
pattern. These tests generate industry-standard bit patterns that can be used to
determine whether information is being correctly transmitted across a circuit.
"
Procedure
To send/monitor a Pattern Test:
1. Follow this menu selection sequence to display the Tests screen:
Main Menu
→
Test
→
[Network Tests/DSX-1 Tests]
2. For Network tests, select the desired Network interface (1 for 9161 Single T1
NAM, 1 or 2 for 9261 Dual T1 NAM).
For DSX-1 tests, enter the slot and port number of the desired DSX-1
interface.
3. Select the desired pattern in the Send field. If you are sending/monitoring a
user-defined pattern, enter the desired 2-byte hexadecimal value in the field
next to Send. When sending a pattern, the Inject ERR function key appears.
Use Inject ERR if you want to inject a bit error in the transmitted bit pattern.
4. Highlight Send under Command in the row to send a pattern, or Start to
monitor a pattern. Then, press Return to start the test.
5. View the length of time that the test has been running in the Results column.
An error count is also displayed. When monitoring a pattern, the ResetMon
virtual function key appears. ResetMon resets the error count to zero.
6. Highlight Stop under Command in the Send or Monitor row. Then, press
Return to stop the test.
7. View the length of time that the test has been running in the Result column.
The following tests cannot be running when a Send Pattern test is initiated:
H
All loopbacks on the same interface
H
Send Pattern Test on the same interface or any data port assigned to that
interface
H
Send Remote Line Loopback on the same interface
H
Send V.54 or Send FT1 Loopback on any data port assigned to this interface
H
Data Channel Loopback on any data port assigned to the same interface
