User's Manual

36 Chapter4

Protocol Specific Configuration

Terminal Definitions

Only one HDLC.FRAME terminal may be configured on each port (or i n

the case of an E1/T1 interface, on each subchannel). 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 t he example) assigns a unique

reference number for this terminal.

Card:port:subc The port assigned must be configured as in “Port

Definitions” above a nd the Card must have the

appropriate HDLC.FRAME firmware available. The

subsc parameter is used on E1/T1 cards and must have

been defined in the Subchannel Definition section.

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 “E1/T1

HDLC.FRAME Configuration Values” section of this

chapter.

select Theindividual parameters contained in theselectword

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 k nown 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 p urpose. A ll five

parameters are available to the application in the

Logical Terminal table, which can be read by using the

“zinfo()” library function.