Testing Using Keyboard Data (At&T6) - 3Com 56K Command Reference Manual

Testing Using
Keyboard Data
(AT&T6)
1 Send
This command disables error control, fixes the connection rate at 2400
bps, and makes the Business Modem return to command mode when
you type the escape code (
2 Establish a connection with the remote device.
3 If you haven't already done so, arrange with the remote user to
cooperate with the test.
If necessary, set the remote device to acknowledge the remote digital
loopback request. For example, older modems need to be set to S16=8.
4 Send
mode, and the MR status light flashes.
5 Type a short message. It will be looped back to your modem by the
remote device and to your screen for verification. (The remote user will
not see your data.)
6 Send the escape code,
Alternatively, you can end the test by sending
careful, because ATZ and ATZ! reset the Business Modem in addition to
ending the test.
If you issue an invalid command, the Business Modem sends an ERROR
message. If you set Register S18, the Business Modem automatically ends
the test when the test timeout is reached. See the example in the
previous section, Stopping a Test for an example of using S18.
Data errors indicate a problem with the remote device or with the phone
link.
7 Send
to prepare the Business Modem for testing.
AT&M0&N3S14.0=0
+++
to the modem. The modem enters remote digital loopback
AT&T6
, and then
+++
, unless you used a reset command (ATZ or ATZ!).
AT&M4
Testing the Business Modem using AT&Tn
).
to end the test.
AT&T0
,
ATH
14-7
, or Be
ATZ ATZ!