ZyXEL Communications IES-612-51A manual 242

Chapter 37 Diagnostic

The following table describes the labels in this screen.

Table 80 Diagnostic

LABEL	DESCRIPTION
Syslog/ Event Log	Click Display to display a log of events in the multi-line text box.
	Click Clear to empty the text box and reset the log.
IP Ping	Type the IP address of a device that you want to ping in order to test a
	connection.
	In the field to the right specify the number of times that you want to ping the IP
	address.
	Click Ping to have the device ping the IP address (in the field to the left).
Loopback Test	Select a port number from the Port drop-down list box and enter a VPI/VCI to
	specify a PVC. Click OAM F5 Loopback to perform an OAMF5 loopback test
	on the specified DSL port. An Operational, Administration and Maintenance
	Function 5 test is used to test the connection between two DSL devices. First,
	the DSL devices establish a virtual circuit. Then the local device sends an ATM
	F5 cell to be returned by the remote DSL device (both DSL devices must
	support ATM F5 in order to use this test). The results (“Passed” or “Failed”)
	display in the multi-line text box.
LDM Test	Select a port number from the Port drop-down list box and click Set LDM Port
	to have the IES-612-51A perform line diagnostics on the specified port. The
	ADSL port must be set to ADSL2 or ADSL2+ ADSL operational mode and have
	a connection. It takes about one minute for the line diagnostics to finish. The
	screen displays a message confirming upon which ADSL port line diagnostics
	will be performed.
	Click Get LDM Data to display the line diagnostics results after using the Set
	LDM Port button on an ADSL port. Use the line diagnostics results to analyze
	problems with the physical ADSL line.
	Click Get LDM Data(raw) to display the unformatted line diagnostics results.
	Click Get LDM Data(992.3) to display the line diagnostics results in the format
	defined in the ITU-T G.992.3 standard.

	Note: Wait at least one minute after using Set LDM Port before
	using Get LDM Data.
SELT	Select a port number from the Port drop-down list box and click Set SELT Port
	to perform a Single End Loop Test (SELT) on the specified port. This test checks
	the distance to the subscriber’s location.
	Note: The port must have an open loop. There cannot be a DSL
	device, phone, fax machine or other device connected to
	the subscriber’s end of the telephone line.
	The SELT takes at least fifteen seconds. To check the status of the SELT or to
	look at the results when the SELT is complete, select a port number from the
	Port drop-down list box and click Get SELT Data. The results tell you what
	gauge of telephone wire is connected to the port and the approximate length of
	the line.

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	IES-612-51A User’s Guide