Chapter 7. Test Menu

QRSS Pattern

The QRSS pattern is commonly used to simulate real data in E1 interfaces. This pattern can be assigned to appear in all TS0s or only in TST TS0s. When QRSS is set in all TS0s and one of the net- work loopbacks previously described is activated at the far end, a total end-to-end integrity check can be run without the need for any external test equipment. When QRSS is assigned to TST TS0s, an integrity check of the link can be run along with normal data flow. The TST TS0s are user assigned as part of the TS0 Map.

This sets the pattern for the test and initiates the transmission of the pattern. The test is terminated by selecting None. The following patterns are available:

QRSS All TS0s

Generates a QRSS test pattern and inserts the

 

pattern into all TS0s

QRSS TST TS0s

Inserts a QRSS pattern in those TS0s mapped as

 

TST in the currently active map (A or B)

None

Terminates pattern generation

QRSS always runs at 64K/TS0.

For example, use the up and down arrows to select QRSS ALL TS0s. Press Enter to record the selection. The ESU 120e starts to generate a QRSS test pattern and inserts the pattern into all TS0s. To end the test, select None.

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ADTRAN ESU 120e user manual Qrss Pattern, Qrss always runs at 64K/TS0