Installation manual
o
o
ODe
Outside
diameter.
OEM.
Original
equipment
manufacturer.
oersted.
Centimeter-gram-second
electromagnetic
unit
of
magnetizing
force
(A.cm 1.256 oersteds).
PC.
Personal
computer.
PCC.
Power
Control
Compartment.
psi.
pounds
per
square
inch
PTT.
Postal
Telephone
and
Telegraph.
R &
S.
Russell
& Stoll.
RF.
Radio
frequency.
ReI.
Relative
(relative
humidity).
REN.
Ringer
equivalency
number.
rfi.
Radio-frequency
interference.
SDA.
Synchronous
data
adapter.
SDLC.
Synchronous
data
link
control.
service
clearance.
Minimum
space
required
to
allow
working
room
for
the
operator
and
the
service
representative.
TTY.
Teletype.
TP.
Teleprocessing.
UK.
United
Kingdom.
UL.
Underwriters
Laboratory.
USOC.
Universal
Service
Order
Code.
v.
Volt.
W.
Watt.
WT.
IBM
World
Trade.
X-3