User's Manual

Example 1 - test timer disabled
Command: AT&Q0<CR>
ATS18=0&TI <CR>
Result: CONNECT 56000
Test message: THE QUICK BROWN FOX JUMPS OVER THE
LAZY DOG 1234567890
Escape: + + +
(return to the on-line command state)
Result code: OK
Command: AT&T0 <CR> (end the test)
Result code: OK
Here, the test timer is disabled and the modem sets up an internal analog loop as shown in Figure 4-1. When
the loopback is established, the modem goes on-line and the test message (any character you type) is looped
back on the screen for verification. Finally, +++ returns the modem to the command state and &T0 ends
the test and breaks the internal analog loop.
The following command sequence is the same as the previous one except that the test timer is set to 60
seconds. At the end of the test time, the timer expires, the test ends, and the test result is reported.
Example 2 - test timer enabled
Command: AT&Q0<CR>
ATS18=60&T1<CR>
Result: CONNECT 56000
Test message: THE QUICK BROWN FOX JUMPS OVER
THE LAZY DOG 1234567890
Escape: +++
Result code: OK