ADTRAN TDU 120e user manual Network Tests, Loopback Tests

Models: TDU 120e

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Chapter 7. Test Menu

Executing tests will disrupt some of the normal operation. See individual menu items concerning tests before executing.

Menu flow is depicted from left to right. At every level of the menu, pressing Escape returns the system to the pre- vious menu level. Pressing Escape repeatedly returns the system to the MAIN menu.

Network Tests

Network tests control the activation of loopbacks and the initiation of data test patterns.

Network tests are run on the Network Interface (NI). You can select three different test configurations to determine the type of loopback and the pattern to run. Test results display in the LCD window.

Executing Network Tests will disrupt normal data flow unless only TST DS0s are selected for testing.

Loopback Tests

A number of different loopbacks can be invoked locally from the front panel, by T-Watch PRO commands, or re- motely by using special in-band codes (AT&T D4 net- work loop-up and loop-down codes). Additionally, the loopbacks can be remotely controlled by means of out-of- band commands by the T1 ESF FDL or from T-Watch PRO by a modem connection.

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TDU 120e User Manual

61202156L2-1

Page 98
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ADTRAN TDU 120e user manual Network Tests, Loopback Tests