Asynchronous Terminals and Printer Processes Programming Manual

TERMINAL I/O
Line-Configuration Characteristics
For ATP6100 devices, the SYSGEN default values for the connection
type can be changed by including the MODEM and INTERFACE
attributes in a CMI ALTER SU command.
Echo
The ECHO SYSGEN modifier causes incoming characters to be echoed
back to the terminal if the terminal is in conversational,
full-duplex mode. With TERMPROCESS, the asynchronous controller
hardware does the echoing; with ATP6100, the protocol module does
it. You can change the SYSGEN default value with a SETMODE
20 procedure call. For ATP6100 subdevices, you can change
the default by including the ECHO attribute in a CMI ALTER SU
command.
The NOECHO SYSGEN modifier, or the ECHO CMI attribute turns echo
off. Turn echo off to suppress display of a password.
Modem Characteristics
Devices that are connected to the host through modems require
special SYSGEN modifiers. The modem characteristics interact
with the flow control characteristics described in "Flow Control"
earlier in this section. Table 2-8 shows these modifiers and how
to change them.
November 1987 2-15