HP Integrity NonStop H-Series - Manual (Page 156)

A Keyboard Mapping for TN6530
Introduction
The TN6530 is a multiple-page terminal emulation utility that runs on a BSD-based UNIX system.
The version of the utility described here runs on Sun Microsystems machines; however, the emulator
is not limited to Sun machines. The TN6530 code is fully portable to any BSD-based UNIX system.
The main objective of this utility is to provide users on UNIX systems the capability to log on to a
NonStop system and run applications that depend on the capabilities of a 6530 terminal or a
similar multiple-page terminal. TN6530 sends the keystrokes you enter from your workstation
keyboard to the host. The host application program you are using processes the data. The
application may also send information to the workstation; this information appears on your screen
along with the characters you enter.
The following major functional units of TN6530 are shown in
Figure 4 :
•
TELNET protocol
•
6530 protocol
•
keyboard mapping
•
display routines
Figure 4 TN6530 Functional Units
TELNET Protocol
Access to the Nonstop system is provided through the TELNET protocol running as a client on a
TCP/IP network using the sockets library. From the user’s perspective, TN6530 can be considered
a frontend to the TELNET client. TN6530 supports all commands and options of the 4.3 BSD TELNET
client. These commands and options are described in Section 11, TELNET—Using a Network
Virtual Terminal
Display Routines
Screen manipulation and display is achieved by the use of the curses routines. These routines
provide a means of writing portable terminal-dependent code for screen manipulation, such as
cursor movement and editing.
Supported and Unsupported Features
Supported Features
•
Conversational and Block mode
•
Duplex and half duplex in Conversational mode, Keyboard-generated soft reset
•
Keyboard-generated soft reset
156 Keyboard Mapping for TN6530