Terminet/Teletype Code Comparison; Special Comments On Terminet 300 Codes - GE TermiNet 300 Programmer's Manual

GEK-J5002 Programmer's Manual
7 Bit
Code
7 Bits
Plus
Parity
TermiNet
300
Character
TermiNet
300
Key(s)
156
157
160
161
162
163
164
165
166
167
170
171
172
173
174
175
176
177
356
157
360
161
162
363
164
365
366
167
170
371
372
173
374
175
176
377
n
o
p
q
r
s
t
u
v
w
x
y
z
{
}
DEL
n
o
p
q
r
s
t
u
v
w
x
y
z
{
I
I
}
DEL
TERMINET/TELETYPE CODE COMPARISON
For a comparison of TermiNet and Teletype
codes, refer to Table 2.
SPECIAL COMMENTS ON
TERMI,NET
300 CODES
In the descriptions following, "receipt'.' or "when
received" refers to signals received, not those gen-
erated at the keyboard or on local tape. "Recogni-
tion" refers to signals received or to signals gen-
erated locally. The codes listed are 7 -Bit Codes.
NOTE: In saine cases, the codes are
stored. There is no perJnanent memory in
tlze TerrniNet 300 Printer and this memory
will be lost if power is completely removed
from the pYinter.
003 END-OF-TEXT (ETX) - LINE
TURNAROUND OPTION
004
8
ETX will "turn the line around" on half-
duplex systems, when recognized. Other-
wise, ETX will be treated the same as any
other character.
END-OF-TRANSMISSION (EOT)
When recognized, this code causes the con-
dition of the terminal to go to "Standby" if
the original condition was "On Line". If the
terminal was in "Local", the EOT code will
stop the printer. The EOT will also turn off
the data set lead CP (Request to Send). (It is
possible to have the TermiNet 300 Printer
wired so that the code EOT has no effect. )
005
006
007
010
011
ENQUIRY (ENQ) - ANSWERBACK
OPT'I()~
Receipt of this code will trigger the answer-
back, when answerback is included. (The
answerback can contain up to 20 characters. )
In addition, if line turnaround option is used,
ENQ will trigger either ACK or NAK, depend-
ing on the status of the terminal, and cause
a line turnaround. (The ACK or NAK will
immediately follow the last character of the
answerback. )
ACKNOWLEDGEMENT (ACK) - LINE
TURNAROUND OPTION
ACK will "turn the line around" on half-duplex
systems, when recognized. (On other sys-
tems, the ACK will be treated just as any
other character.) ACK also reflects the ter-
minal status as being positive or good.
BELL OR ALARM (BEL)
When recognized, this code sounds an audi-
ble alarm for approximately O. 5 second.
Any BEL received during a O. 5-second alarm
will be ignored;
i.
e., successive BEL codes
do not generate a cumulative time value of
tone.
BACKSPACE (BS)
Recognition of this code Inoves the printing
position one print colurnn to the left. See
TIMING.
HORIZONTAL TAB (HT) - OPTION
Recognition of HT causes the next printing
action to take place \vhere the next tab has
been set. Tabs can be set at any position on
the print line. The tab set farthest to the
left is used as the left-hand margin. The
time required for moving from a character
position to any tab set to the right of mat
character pOSition is less than one character
time. When power is turned off, all tabs
will be dropped; this is not true 'when in
" Standby"
012 LINE FEED (LF)
015
Recognition of this code advances the
printer's paper one or two lines, depending on
the position of the LINE FEED switch on the
console of the TermiNet 300. See TIMING.
CARRIAGE RETURN (CR)
Recognition of CR returns the print charac-
ter position to the left-hand margin.
The
left-hand margin is hardware fixed except