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Data Communications
KEYBOARD INTERFACE STRAPS.
The keyboard
Interface straps permit you to select various communica-
tion features. A list of the selectable features is given in
table 5-12.
Table 5-12. Keyboard Interface Straps for Block Operation Using 13260C or 13260D
Communications Accessory
OPERATION WITH
STRAPPING
NORMAL OPERATION
STRAPPING OPTION
STRAP
OPTION
(SWITCH CLOSED)
(SWITCH OPEN)
A
Function Key Transmission
The escape code sequence generated by the
(Same as switch closed.)
major function keys (such as, ROLL UP, ROLL
DOWN, etc.) are executed locally, but not trans-
mitted to the computer.
B
Space Overwrite (SPOW)
Spaces typed will overwrite existing characters.
When the SPOW latch is off, overwriting occurs as
Latch Enable
normal. When the SPOW latch is on, spaces cause
the cursor to forward but not overwrite any ex-
isting characters. The SPOW latch is turned on by
a Carriage Return, and turned off by a Line Feed,
Home, or Tab.
C
Cursor End-of-Line Wrap
At the end of each line, a local Carriage Return
A Carriage Return and Line Feed are not generated
Around
and Line Feed are generated; the cursor moves
at the end of each line. The cursor remains in
to the beginning of the next line.
and overwrites column 80.
D
Line/Page
The 2645 is set to transfer a line at a time from
Transfers the entire contents of display memory
display memory, an unprotected field in format
(a "page"), all unprotected fields in format mode,
mode, or a record from the tape cartridge.
or a file from the tape cartridge.
E
Paper Tape Mode
When the READ key is pressed with the AUTO
Each tape record is terminated by CR(LF).
LF down, each tape record begins with an LF if
the AUTO LF key is down and is ended with a CR.
F
(Not Used)
G
Block Transfer Handshake
No effect.
No effect.
H
Inhibit DC2
No effect.
No effect.
J
Auto Terminate
No effect.
When the ENTER key is pressed a non-displaying
terminator is placed before cursor position.
K
Clear Terminator
No effect.
Clear terminator caused by strapping option J
above.
L
Self Test Inhibit
No effect.
Self Test function is inhibited. Pressing TEST key
or issuing ESC z has no effect. TAPE TEST and
DATA COMM SELF TEST functions are not
affected.
M
Reverse Sense of
No effect.
Reverses control function of INSERT CHAR and
INSERT and DELETE CHAR
DELETE CHAR keys (Le., when key is pressed,
with Wrap.
line wrap around is in effect without having to
press CNTL key. When either key is pressed while
pressing CNTL, normal insert character and delete
character functions are in effect.)
N
Escape Code Transfer To
No effect.
Escape codes relating to the display (e.g., display
Printer
enhancements, alternate character sets, format
mode, fields, etc.) are sent to printer if it is selected
as a destination device.
p,a
Refer to page 7-49 for APL application.
R
Data Set Ready (CC)
No effect.
Provides an internal Data Set Ready (CC) signal to
the terminal. (Used in applications with the HP
30037A Asynchronous Repeater, and the Group
Poll feature.)
S
Space Compression
Space characters are sent normally.
Space characters are compressed.
5-34
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