Actiontec electronic IS560LH user manual ATI11, Self-Test Commands

&Tn Self-Test Commands

This command allows the user to perform diagnostic tests on the modem. These tests can help to isolate problems when experiencing periodic data loss or random errors.

	Command	Effect
	&T0	Abort. Stops any test in progress.
		Local analog loop. This test verifies modem operation,
		as well as the connection between the modem and
	&T1	computer. Any data entered at the local DTE is
		modulated, then demodulated, and returned to the local
		DTE. To work properly, the modem must be off-line.
	&T3	Local digital loopback test.
		Remote digital loopback test. This test can verify the
		integrity of the local modem, the communications link,
	&T6	and the remote modem. Any data entered at the local
		DTE is sent to, and returned from, the remote modem.
		To work properly, the modems must be on-line with
		error control disabled.
Result Codes:
	OK	n = 0
	CONNECT	n = 1, 3, 6
	ERROR	Otherwise
ATI11
	Display Diagnostic Information for the last modem connection

The “ATI11” command displays the following diagnostic information for the last modem connection. A value of “NA” will be displayed if that parameter is not appli- cable for that connection.

Description	Example	Comments
Last Connection	V.34	56K/V.34/V.32 - The last
		data connection is successful.
		Failure-the last data connec-
		tion failed.
Initial Transmit Carrier Rate	33600	The upload connection rate
		after initial negotiation.

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