TM 11-5815-602-10
EE161-DM-OPI-010/E154UGC74
TO 31W4-2UGC74-1
Refer to paragraph E-5,''ASCII Definitions", for a detailed explanation of abbrevia-
tions (CC), (FE), and (IS), use of control and graphic characters.
a. Control Characters
Null
DC3
NUL
Device Control 3
SOH
Device Control 4 (Stop)
Start of Heading (CC)
DC4
NAK
Negative Acknowledge (CC)
Start of Text (CC)
STX
End of Text (CC)
ETX
SYN
Synchronous Idle (CC)
EOT
ETB
End of Transmission (CC)
End of Transmission Block (CC)
ENQ
Enquiry (CC)
CAN
Cancel
ACK
EM
Acknowledge (CC)
End of Medium
BEL
Bell (Audible or attention signal)
BS
SUB
Substitute
Backspace (FE)
HT
Horizontal Tabulation (punched card
ESC
Escape
skip) (FE)
LF
FS
File Separator (IS)
Line Feed (FE)
VT
Vertical Tabulation (FE)
GS
Group Separator (IS)
FF
RS
Form Feed (FE)
Record Separator (IS)
us
Carriage Return (FE)
CR
Unit Separator (IS)
SO
DEL
Delete'
Shift Out
Shift In
SI
DLE
Data Link Escape (CC)
DC1
Device Control 1
Device Control 2
DC2
Meaning of Control Character Abbreviations
(CC) Communication Control
(FE) Format Effecter
(IS) Information Separator
In the strict sense, DEL is not a control character.
NOTE
When a control character is represented by a single graphic symbol, the
symbol is that which appears to the right of the control abbreviation in table
E-1.
E-5
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