Peripheral Device Connection; Configuration Of The Terminal; Data Communications; Graphics - HP 262SA Reference Manual

Dual-system display terminal and word-processing terminal
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Introduction
PERIPHERAL DEVICE CONNECTION
Peripheral devices, such as printers and plotters, are connected to the terminal in an Alternate
Peripheral Interface network. Either the standard 2628A, option 046 (2628A), or option 026
(2625A) is required to connect to an Alternate Peripheral Interface network.
CONFIGURATION OF THE TERMINAL
Configuration of the terminal is performed using menus. These include a Global Configuration
menu, a Terminal Configuration menu, and four data communication (datacomm) menus for
the HP personality of the 2625A and for the 2628A. The IBM personality of the 2625A has a
menu of its own. Selections made on these menus determine, among other things, terminal
characteristics, coordination of data transfer between the terminal and the host computer,
parity type, and rate of data transfer.
DATA COMMUNICATIONS
The terminal can be connected to an HP host computer in either a point-to-point or multipoint
configuration, either hardwired or through modems. Port 2 of the standard 2625A terminal is
connected to an IBM computer in a multipoint network, for Bisync operation. In addition,
option 021 of either the 2625A or the 2628A can be connected to a distributed systems network
(DSN), a form of multipoint network.
The 2628A or the HP personality of the 2625A can transfer data either one character at a time
or in blocks of one line or one page (one screenful) at rates up to 19,200 baud.
Switching between the HP and IBM personalities of the 2625A terminal is done with a function
key. Each port remains active, even though it is not currently selected.
GRAPHICS
Option 523 incorporates a graphics capability into both the 2625A and the 2628A terminals.
Refer to Appendix
D
for information.
WORD PROCESSING
Option 528 incorporates the HPWORD word processing capability into the 2625A terminal.
This capability is standard with the 2628A. Appendix E contains information on word process-
ing.
ESCAPE SEQUENCES
Escape sequences, incorporated into a computer program, enable the program to control
terminal operations. When the terminal receives the escape sequence, it performs the opera-
tion specified in the sequence. Escape sequences consist of most of the operations performable
at the keyboard, using the non-alphanumeric keys. Many sequences are also enterable from
the keyboard. References to escape sequences are made throughout the manual. Refer to
Appendix A for a complete list of the escape sequences and their functions.
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