Each port which is to be used with the HDLC-NRM (SDLC) protocol must
have one or more HDLC-NRM (SDLC) terminals defined on it. Each port
must have either all primary terminals defined or all secondary
terminals defined. They cannot be mixed on a line.
Some example HDLC-NRM (SDLC) Terminal-Definition lines follow:
Term 120 1:6 HDLCNRM.P 0041H 4024H 1000 0 0 0 0 "HDLC/NRM Primary A"
The first Terminal-Definition defines an HDLC primary terminal
with ZLU of 120 on Mux 1 Port 6 with poll address 0x41 (ASCII "A").
Term 120 1:6 HDLCNRM.S 0042H 0824H 1000 0 0 0 0 "HDLC/NRM Secondary B"
The second definition defines a secondary terminal with address
0x42 ("B").
Term 120 1:6 HDLCNRM.P 0041H 4024H 1000 0 0 0 0 "HDLC/NRM TWS Primary A"
Option 02H
The third definition is the same as the first except that
the Option keyword is used to override the predefined option definition
for the HDLCNRM.P device to specify the TWS option (see later sections
for details).
The Terminal-Definition takes the following format:
Term zlu card:port type poll select application_data name <option>
More specific information on the parameters in the HDLC-NRM
(SDLC) terminal definition follows:
- ZLU
This number (120 in the example) assigns a unique reference
number for this terminal.
- Card:port
The port assigned must be configured as above and
the Card must have the appropriate HDLC-NRM (SDLC) firmware configured.
- type
This name defines a device type which is used with
the HDLC-NRM (SDLC) protocol. There are a number of predefined devices
which may be used with the HDLC-NRM (SDLC) protocol. These are described
in a later section of this chapter.
- poll
This parameter, which is normally specified in hexadecimal,
is used to specify the secondary station address. Its format is
described in a later section of this chapter.
- select
This parameter is used to define a number of parameters
which govern the operation of the protocol. The value is normally
specified in hexadecimal. The individual parameters contained in
the select word are defined and described in a later section of
this chapter.
- appl.no.
Application number (Application dependent - has
no effect on protocol, see Note).
- inst.no.
Institution number (Application dependent - has
no effect on protocol, see Note).
- brch.no.
Branch number (Application dependent - has no effect on
protocol, see Note).
- wkst.no.
Workstation number (Application dependent - has
no effect on protocol, see Note).
- area no.
Area no (Application dependent - has no effect on protocol,
see Note).
 |
| |
|
 | NOTE: The five parameters above are for the use of the application
and can be set to any value desired. They can be accessed by the
application from the Logical Terminal Table using ZINFO. |
|
| |
|
- name
Choose a meaningful description of the HDLC-NRM (SDLC)
terminal, preferably including a reference to the location of the
remote end of the link. This field will be used in some ZMNTR displays.
It may also be accessed programmatically using the ZINFO call.
- option
This parameter may be specified to override the predefined
options for a device type. It is not normally used, as it would
be more useful to define a new device type. (See later section on
HDLC-NRM (SDLC) device types.)
Printable version
