CXR AJ 2885P Manual de usuario descargar pdf (Pagina 35)

User's Manual V34bis Fax-modem - AJ 2885 P

AJ 2885 P - Page 35

Boucle 3

AT&T1 <RC>........................................start the test

CONNECT 19200 ................................ Connect message

ABCDE................................................. characters sent by the terminal

+++....................................................... escape to command mode

AT&T0.................................................. End of test command

♦ Note: the connection status ( AT&s8 ) page can be displayed during the test after an

escape to command mode.

♦ B 2 : remote digital loop

: modems are connected before starting the test.. the remote

loop on the B modem is initiated from the A modem by the following commands :

♦ AT&T6 : simple loop. The A terminal checks returned characters. The connection must be

done without any error correction protocol ( AT*M1 )

♦ AT&T7 : same loop with automatic character sending and checking by the A modem. It

displays the error counter at the end of test. The connection must be done without any

error correction protocol ( AT*M1 )

♦ End of test : the test ends at the test timeout defined by the S18 register, or by entering an

escape sequence ( '+++' ) and an AT&T0 command.

♦ Front panel LED: on the B modem, the DSR led flashes and the CTS signal is dropped

during the test.

♦ Example :

A A B B

Connection at 19200bps B 2

+++

OK ......................................................... escape to local command mode on

modem A

AT&T6

OK ......................................................... requests a remote digital loop to B

modem

ABCDE.................................................. characters issued by the A terminal are

sent back by the B modem

+++

AT&T0 ................................................... End of test

ATO....................................................... Return to connected mode and

reactivate the data link between the A

and B terminals.

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CXR AJ 2885P Manual de usuario Pagina 35