Owner`s manual

Page 5-2 Chapter 5
5.1TERMINAL NAME
The terminal name consists of one to six alphanumeric characters chosen by you.
Every terminal on the computer must have a different name, although you may choose
to use a terminal name that duplicates a job name or a program name. The computer
uses the terminal name to identify the terminal you want to attach to a job or you want to
access using the TRM device driver.
5.2INTERFACE-DRIVER
The interface is the hardware board connecting the terminal to the computer. The
interface statement gives the name of the terminal interface and the terminal’s I/0 port
number on the computer. The I/0 port address follows the name of the terminal
interface, and is separated from it by an equal sign.
As the computer processes each TRMDEF command line, it loads the proper interface
driver into system memory from account [1,6] of the System Disk. If the driver is already
in memory because of a previous TRMDEF command line, the computer does not load
it in again.
Interface drivers are the programs that actually transfer data between the terminal
buffers and the terminal interface boards; these programs have the extension .IDV and
must be in account [1,6] of the System Disk. The interface drivers often have the same
name as the interface boards they work with. The format of the interface section of the
TRMDEF command line is:
Interface-driver-name = I/O-port-number{:baud rate}
For example:
AM355 = 1:9600
The default baud rate is 19200. That is, if you do not specify a baud rate, the computer
will use 19200 as the baud rate.
The I/O port number tells the interface driver where the terminal is connected to the
specific board defined by Interface-driver-name. For example, the AM100L driver
controls the two ports defined on the AM-100/L CPU board. Therefore, you can connect
two terminals—one to port 0, and one to port 1.
The port number you specify in the TRMDEF statement may not always be the same
one as the number of the "port" in the back panel of your chassis where the terminal
cable plugs in. Therefore, we call those back-panel ports "external" ports.
Each interface board uses one or more specific interface drivers. Please refer to your
computer
Owner’s Manual or the instructions on installing your interface board for the
interface driver name.
System Operator’s Guide to the System Initialization Command File, Rev. 03