HP UX 11.x Operating Systems 36

Protocol Specific Configuration

Terminal Definitions

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

Chapter 4