6530 Programmer's Guide

Overview
6530 Programmer’s Guide 1-11
Device Control The 6530 provides access to operating system devices or filenames, such
as printers or disk files. Supported features include:
Screen printing – Allows the user or your application to print the
contents of the display screen or the selected page.
Pass-through printing – Allows your application to print any type of
data.
Write and write/read operations – Allows your application to
perform I/O operations on any operating system filename or device.
Exec function (conversational and block modes only) – Enables your
application to start execution of PC operating system programs.
See “Device Control” on page 2-41 and on page 3-77 for specific
information regarding your application’s implementation of escape
sequences for 6530 device control functions in conversational and block
modes.
Host
Communications
The 6530 supports a variety of communications configurations with the
host system. On a NonStop host system, the 6530 can be connected as
shown in the following tables:
Table 1-2. Terminal Connections
Terminal Host Description
ASYNC TP To the host system patch panel, through
direct connection (via RS-232 or 20mA
current loop) or remote connection (via
RS-232 asynchronous modems). In this
configuration, the 6530 communicates with
TERMPROCESS software on the host.
ASYNC ATP To a 6100 Communications Subsystem
(CSS), via direct connection (RS-232 or
20mA current loop) or remote connection (via
RS-232 asynchronous modems). In this
configuration, the 6530 communicates with
ATP6100 software on the host.
ASYNC SNAX/6600 Via a Model 6600 Intelligent Cluster
Controller, via RS-232 or 20mA current loop
connection. In this configuration, the 6530
communicates with SNAX or SNAX6600
software on the host.
ASYNC X25/PAD Via an X.25 network (by means of an X.3
PAD). In this configuration, the 6530
communicates with X25AM software on the
host.