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2.7.2 Port Data
Characteristic~;
A number of port characteristics determine the make-up of the data transmit-
ted between the terminal and server.
AUTO BAUD
AUTOBAUD is a means by which the server, at terminal login, auto-
matically senses the terminal's speed, parity, and character size. The server
then adjusts its port characteristics accordingly.
For AUTOBAUD to function correctly, the terminal's internal parameters must
be set as follows:
•
The terminal's input speed and output speed must be the same. The
permissible speed values are listed in the DEFINE PORT command
description in Chapter 5.
•
The terminal must have one of the following character size and parity
combinations: CHARACTER SIZE 8 and PARITY NONE, or
CHARACTER SIZE 7 and PARITY EVEN.
These are the default parameters for all terminals in the DIGITAL VT series.
Consult the terminal operator's guide if necessary.
If you wish to operate the terminal with different input and output speeds, or
with other combinations of character size and parity, set up AUTOBAUD to
DISABLED. Then define speed, character size, and parity as discussed in the
following sections. By default AUTOBAUD is enabled.
SPEED, INPUT SPEED, OUTPUT SPEED
If
you do not enable AUTOBAUD, you must define a terminal speed character-
istic. The input and output speeds of a terminal are expressed in bits per sec-
ond (bps). The permissible speed values are listed in the DEFINE PORT
command description in Chapter 5. Normally, all you need to specify is a value
for SPEED. Enter values for INPUT SPEED and OUTPUT SPEED only if
the two are different.
The default value for the speed characteristics is 9600 bps.
CHAPTER 2 SETTING UP THE MUXserver 100 AND ITS TERMINALS
29
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