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"
•
I
2
LIST OF ABBREVIATIONS
~·
~.I.T.T.
CE(l.)
el
CL
CR
~
...
OR
ORR
OTR
EIA
p~lsea
for
mon. feed
ouxiliory (-device)
CTS-condition for READER
· bi ts per uc:ortd
freq. to volto9e converter
Co.t1ite
Consul.totif lnterno•
tional TUe9i-ophique et
Telephonique
chip
enable
(low) lo.gicol
"0"
current
loop
c:ouioge
return
clear to send
ERROR
from
PUNCH
or READER
device control 1-4
data ovoilcble (UART)
doto
ovoiloble reset (UART)
dote terminal ready
Electronic lndu•triea Asao•
ciotion
EOT
end of tope
FF
flip flop
H
high aignol, logical "l"
PI
,punch instruction
POR
power on
reset
PROM
progrommoble read only memory
PSP
punch .top
PSS
punch start atop
PST
punch
start
PrfB
printed wire board
• RD
received dota
.. RO ..
~
intern~l
dgnol
nOfle
for
RO
RDS
reader data strobe
RIO
reader interrupt
delo~
RS
reode r a
tep
RSS
reader start stop
RTS
request to send
START(L)
start from 4040ponel
STOP(EXT)(L)
&top
from 4040 pon•l
•
TBRL
dato strobe for parallel input
(UART)
.. TO ..
TRE
UART
tronu1i tted doto
internal signal nome for TO .
transmitted end of character
universal 01ynchronou1
neei ver/ tranamittu·
...
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