Chapter 8 Example Operations; Testing Examples; Far End Looped Back Test; Network Interface Test - ADTRAN TSU LT User Manual

Example Operations
Chapter 8

TESTING EXAMPLES

Before using the TSU LT to pass data, it is recommended to run tests on the circuit. Testing consists of
sending a test pattern from end-to-end and checking for errors in the pattern. There are two types of tests
used to accomplish this:
• Send the pattern from one end and loop back the far end.
• Send the pattern from both ends and check at both ends.

Far End Looped Back Test

Two types of tests can be executed with the far end looped. The first is a check of the network and the
network interfaces at both ends (511). The second is a check of the DTE port.

Network Interface Test

The Network Interface Test can be run with any channel setup because the 511 pattern is always sent in the
occupied channels. Follow these steps to run this test:
1. Select from the main menu. See Figure 8-1.
T
EST
2. Use the Up and Down arrows to place the cursor on
3. Press Enter to select.
Result: The first two
4. Use the Up and Down arrows to place the cursor on
5. Press Enter to select.
6. Press Enter again to enter the
Result: Beginning display of the submenu items. Each menu item can be selected with the Up and
Down arrows.
61202060L4-1
submenu items display. See Figure 8-2 on page 58.
T
EST
N T
ETWORK

Figure 8-1. Main Menu with TEST Selected

© 2002 ADTRAN, Inc.
.
T
EST
N T
ETWORK ESTS
menu.
ESTS
.
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