Tandy DCM-7 Operation Manual page 38

Tandy protocol reference
Command description
This section details how to program the DCM-7 using the commands listed
in Table 9. ·
*
Wake-up command
This command is used to wake up the DCM-7 - that is, switch from the
off-line state and into the command receptive state. At initial power-up, you ,
will need to precede any command with the
* ..
The wake-up command is also used to
(1)
abort (turn off) the dialing process;
(2) abort the waiting-for-carrier state (after dialing is complete); and (3) in-
terrupt the waiting-for-ring state when the DCM-7 is in auto-answer mode.
When the
*
is used while the DCM-7 is waiting for a tdephone call (phone
to ring), it terminates the answer mode.
When used while the DCM-7 is dialing in automatic originate mode, the
Modem will stop dialing, displays DISCONNECT and return to the com-
mand receptive mode.
The
*
command can be used at any time while in command mode. It will
be echoed to the computer, but no action will occur.
@
Redefine abort character
The abort character allows the Modem to be disconnected under software
control. With this command, you can change the. default abort character
CTRL 0 into any ASCII character you like.
To program this symbol, press @ . The next key the Modem receives will
be stored as the abort character. For example, to change the abort code from
CTRL 0 to CTRL R after doing a List command, you would type:
@
CTRL R
CTRL R would be listed as EXIT == 12 (in HEX). When you enter the ASCII
character, it will not be echoed on the screen. Only
@
will be echoed, provided
the echo switch is not disabled.
The DCM-7 will watch for transmitter activity for 3 seconds after the abort
code is sent. If there is no activity during that 3:-second period, the computer ,
will abort any ON-LINE activity in progress. If there is keyboard activity
within that 3-second period, the DCM-7 will ignore the abort command.
32