Chapter 7. Test Menu

QRSS TST DS0s

Inserts a QRSS pattern in those DS0s mapped as TST in the currently active map (A or B).

None

Terminates pattern generation.

QRSS always runs at 64K/DS0.

Instructions for Generating a QRSS Test Pattern

Step

Action

1Select QRSS ALL DS0s.

2Press Enter to record the selection. The TDU 120e starts to generate a QRSS test pattern and inserts the pattern into all DS0s.

3To end the test, select None.

Pattern Result

Displays the results of the test currently active. Leaving and returning to this menu item does not interrupt the test.

Pressing 2 injects errors into the test pattern. These errors are detected by the device performing the pattern check.

ES

The number of seconds with at least 1 bit error.

BES

The number of seconds with more than 1 bit error and less than 320.

7-6

TDU 120e User Manual

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ADTRAN TDU 120e Qrss TST DS0s, None, Instructions for Generating a Qrss Test Pattern Step Action, Pattern Result, Bes