A terminal is typically connected to the system by means of a cable running between a communications port on the computer system and a port on the terminal. Two devices are able to communicate when both are using the same protocol.
At installation, the default settings for a communications line on mvBase are established, as shown in the table below. This table also lists the commands used to change these settings.
|
Setting |
Default |
Command |
|
Baud Rate |
9600 |
PROTOCOL |
|
Parity |
NONE |
PROTOCOL |
|
Bits |
8 |
PROTOCOL |
|
DTR |
OFF |
PROTOCOL |
|
X-in |
ON |
PROTOCOL |
|
X-out |
ON |
PROTOCOL |
|
Echo |
ON |
ECHO-ON/ECHO-OFF |
The PROTOCOL command is used to change most of the communications line settings. Note that these default settings may be different at your site.
When you turn on your terminal and see a stream of unfamiliar random characters instead of a logon prompt, it could be that either the baud rate or parity is not set properly. Baud rate, which is the speed of transmission, is usually 9600 for lines connected to terminals. Modem lines are commonly set at 2400, 9600, or higher. These settings must be the same at both ends. You should ask the system administrator for help in establishing the correct line characteristics for your line.
See Also
Setting Line and Process Characteristics