ADTRAN TSU 120e user manual Port Test Menu Items for 0.1 Nx56/64, Loop is deactivated

Chapter 7. Test Menu

Port Test Menu Items for 0.1 Nx56/64

0.1Nx56/64 is the base Nx interface. It offers the following test functions:

DTE LOOPBK

This initiates a loopback. The following options are available:

PRT/LCL The Nx port activates both a Local loopback (back toward the DTE) and a Port loopback when either is invoked.

REMOTE The remote loopback causes a V.54 code to be sent to the far end. The Nx at the far end activates a PORT/LCL loopback upon detection of the V.54 code.

OFF The loop is deactivated.

The TSU 120 checks the remote loopback activation by detecting a proper response from the remote end. While waiting for the re- sponse, the display shows Looping. If successful, the display changes to LOOPED-UP. If unsuccessful, the display shows FAILED.

511 PATTERN

This activates the generation of the 511 test pattern. The follow- ing options are available:

ON	The pattern check circuitry is enabled and a
	test started. The test is ended by selecting
	OFF.
OFF	The pattern generation and check is
	disabled.
511 RESULTS

This displays the results of the 511 test indicated in the 511 option. The results are in the form of the number of errored sec- onds. The error count can be cleared by pressing Clear (Shift+9).

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