User's Manual
V34bis Fax-modem - AJ 2885 P
AJ 2885 P - Page 32
(2) Whenever the DTE terminal issues the clock should the modem be set for external clock
(&X1). Frequency accuracy of the DTE clock must be compatible with the modulation.
(3) In case the terminal may issue a permanent data flow even out of connection could the
DUMB mode be set to avoid any spurious commands or escape to command mode
sequences. Either set the DUMB jumper on the modem board or use the @V0 command.
When DUMB mode is set by the @V0 command then coming back to command mode
must be achieved by restoring the factory default configuration in pressing the front panel
button during power-up : the use of the DUMB mode jumper (J6) may be an easy
alternatve. The escape to command mode sequences may be disabled by resetting the
S12, S26 and S43 registers.
5.7.
Automatic dialing directory
The AJ 2885 has a non volatile memory that allows the user to store frequently used numbers.
Each phone number can have a name and control sequence associated. So instead of
remembering every number, the user can type in the recipient name, thus greatly easing the
task of making a connection.
The following example shows how to store a number, name and control sequence at location 3
of the directory memory.
Dialing a direct line, send the command:
ATDT36062424 <CR>
Dialing via a PABX, send the command:
ATDP0W36062424 <CR>
Storing a number in the directory (number 3), send the command:
AT&Z3:NAME:CONTROL:P0W36062424:::A <CR>
Show directory contents, send the command:
AT&N <CR>
Dialing from the directory:
•
The ATDSn command dials the stored telephone number specified by n where n is 0 to 99.
•
By CCITT 108/1 operation. The modem autodials a stored number when an off-to-on
transition of the DTR occurs. The modem disconnects when an on to off transition of the
DTR occurs. AT&D1 command select the dialing mode of the DTR signal.
•
By the phone number name by the ATD$name command.
5.8. Leased
line
A leased line is a permanent analogue telephone connection between 2 sites. Therefore
connection is started with a direct training, i.e. without dialling.
Depending on the selected configuration, the following commands are sent to the modem.
(See reference manual for a description of these commands).
Configuration
Originating modem
Answering modem
2-wire line
4-wire line
Dial back up
1234 back up dial number
Recovery lookback
AT&L1%O1&W <CR>
AT&L2%O1&W <CR>
AT%U1
AT&Z:::1234:::A <CR>
AT%L1&W <CR>
AT&L1%O0&W <CR>
AT&L2%O0&W <CR>
AT%U1
S0=1
AT%L1&W <CR>
