Multitech MultiModemDSVD User Manual page 42

MultiModemDSVD User Guide
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
34
&T n V.54 Test Commands
n = 0, 1, 3, 4, 5, 6, 7, or 8
None
The modem can perform selected test and diagnostic func-
tions. A test can be run only when the modem is in asynchro-
nous operation in non-error-correction mode (normal or direct
mode). For tests 3, 6, and 7, a connection between the two mo-
dems must first be established. To terminate a test in progress,
the escape sequence (+++) must be entered first, except for pa-
rameters 7 and 8. If S18 is non-zero, a test terminates automati-
cally after the time specified by S18 and displays the OK mes-
sage.
&T0 Abort. Stop any test in progress.
&T1 Start local analog loopback, V.54 Loop 3. If a connection exists
when this command is issued, the modem hangs up. The CON-
NECT XXXX message is displayed upon the start of the test.
&T3 Start local digital loopback, V.54 Loop 2. If no connection ex-
ists, ERROR is returned.
&T4 Enables acknowledgment for remote digital loopback request.
&T5 Ignores acknowledgment for remote digital loopback request.
&T6 Requests a remote digital loopback, V.54 Loop 2, without self-
test. If no connection exists, ERROR is returned. The CON-
NECT XXXX message is displayed upon the start of the test.
&T7 Requests a remote digital loopback, V.54 Loop 2, with self test.
(In self test, a test pattern is looped back and checked by the
modem..) If no connection exists, ERROR is returned. When
the test is terminated, the number of detected errors is re-
ported to the computer.
&T8 Starts local analog loopback, V.54 Loop 3, with self test. If a
connection exists, the modem hangs up before the test begins.
When the test is terminated, the number of detected errors is
reported to the computer.
&V0 Display Current Configuration
0
None
Displays the current (active) configuration, the two stored user
profiles, and the first four stored telephone numbers. The
stored profiles and telephone numbers are not displayed if the
NVRAM is not operational as detected by the NVRAM test
during reset processing.
&V1 Display Last Connection Statistics
1
None
Displays statistics for the last connection.