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Appendix B
Z, z
Reset command
This command clears the DCM-7 command buffer and resets all commands
and registers to the default values. When you have changed the commands
and registers from default condition, use this command to return to the
default settings.
It
will save you from cycling the power switch OFF and ON.
E, e
Echo command
This command is used to disable or enable the command echo function. Enter
El to echo the command line to verify that the Modem is accurately receiv'"
ing the commands sent to it. Enter EO when you do not want to echo the
command line.
When the echo feature is disabled (EO), the Modem will appear dead, but
actually it is working normally. The default setting of this command is set
by DIP switch. For example, if DIP switch 5 is OFF, the default is El. If
the switch is ON, the default is EO.
F,
f
Full/half duplex
Selects full- or half-duplex communications mode. Fl sets the Modem to com-
municate in full-duplex mode that only echoes received data when ON LINE
(default). FO sets the Modem to communicate in half duplex. The Modem
echoes both received and transmitted data to the display during ON LINE.
Q,
q
Result codes ON/OFF command
Determines whether the result codes will be sent to the screen. Enter QO to
display result codes and Q 1 if the codes are not to be sent.
V, v
Result codes mode selector
Selects the type of result codes displayed. VO is used for numeric codes and
VI is for verbal codes.
Note: The default values of commands Q and V are set by DIP
switches.
C, c
Transmitter ON/OFF command
The C command sets the Modem's transmitter ·carrier signal ON or OFF.
When Cl is entered, the transmitter is switched ON. The carrier signal is
ON when the Modem originates or answers a call or connects to the remote
modem. Otherwise, it is OFF.
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