HDLC-Frame Protocol User's Guide (February 2004)

Protocol Specific Configuration
Terminal Definitions
Chapter 430
Terminal Definitions
Only one HDLC.FRAME terminal may be configured on each port. The
only exception to this rule is that two Protocol Analyzer terminals (one
for transmitted and one for received data) may also be configured on a
subchannel.
The terminal definition has the following general format:
Term zlu card:port:subc type poll select application_data name
ZLU This number (120 in the example) assigns a unique
reference number for this terminal.
Card:port:subc The port assigned must be configured as in “Port
Definitions” above and the Card must have the
appropriate HDLC.FRAME firmware available.
type This name defines a device type which is used with the
HDLC.FRAME protocol. It must be set to
“HDLC.FRAME”.
poll The format of this parameter is described in the
“HDLC.FRAME Configuration Values” section of this
chapter.
select The individual parameters contained in the select word
are defined and described in a later section of this
chapter.
application_data Five 16 bit parameters are required here, the first of
which is known as the “Application number”. This
number is used by applications to locate terminal
devices, avoiding the need for physical configuration
data, such as card and port numbers, in the
application. The Application Number should be greater
than 1000 for customer applications. The remaining
four parameters may be used for any purpose. All five
parameters are available to the application in the
Logical Terminal table, which can be read by using the
“zinfo()” library function.