ADTRAN TSU 600 user manual All zeros, Qrss always runs at 64K/DS0

Chapter 3. Operation

PATTERN

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 DS0s	Generates a QRSS test pattern
	and inserts the pattern into all
	DS0s
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
All ones	Inserts an all ones test pattern
	into all DSOs
All zeros	Inserts an all zeros test
	pattern into all DSOs

QRSS always runs at 64K/DS0.

Use the up and down scroll to select, for example, QRSS ALL DS0. Press Enter to record the selection. The

TSU 600 starts to generate a QRSS test pattern and inserts the pattern into all DS0s.

To end the test, select None.

PATTERN RESULT

Displays the results of the test currently active. See Figure 3-21. Leaving and returning to this menu item does not interrupt the test.

Code (version K or later): Pressing 2 injects errors into the test pattern. These errors are detected by the device per- forming the pattern check.

80 TSU 600 User Manual 61200.076L2-1