OSP Style Guide Quick
Reference List
Revised 2/2006 |
|
|
50
m, 50 mm |
meters, millimeters
|
|
5-nines,
6-nines |
5 minutes per year downtime; 31 seconds
per year downtime
|
|
10BASE-T |
Also 10/100BASE-T
|
|
100BASE-T |
Also 10/100/1000BASE-T
|
|
45
ºC |
Space before ºC
|
|
45
ºC to +85 ºC |
Use
the word ³to² in this case |
|
aA |
attoampere
(40 aA) |
|
A |
ampere(s):
10 A |
|
baud (Bd) |
400
baud |
|
b |
bit(s):
at 400 bits or 8-bit widget |
|
bps |
bits
per second: 100 bps |
|
cfm |
Cubic
feet per minute (20 cfm) |
|
CL2.0,
etc. |
Clock
Latencies: This is an exception to close up space between CL and digits |
|
cm |
centimeter:
8 cm |
|
cpm |
Cycles
per minute (100 cpm) |
|
dB |
decibel |
|
dBm |
decibel
related to one milliwatt |
|
dBu |
decibel
unit |
|
dc |
direct
current |
|
dm |
decimeter |
|
DS-1, 2, 3 |
Digital
Service Level 1, 2, 3 |
|
g |
gravity
(6-g acceleration); g italicized |
|
Gb |
gigabit |
|
Gbps |
gigabits
per second (10 Gbps); spell out on first reference if meaning is unclear |
GB |
gigabyte
(4 GB) |
|
GbE |
gigabit
Ethernet (1000BASE-T) |
GeV |
gigaelectronvolt |
GFLOPS |
Billion
Floating Point Operations Per Second |
GHz |
gigahertz
(100 GHz) |
GSps |
giga
sample per second |
HF |
high
frequency |
|
HP |
Eurocard
dimension (4 HP) |
|
Hz |
hertz
(120 Hz) |
I2C |
Interintegrated
circuit (I2C meaning ³squared C²) |
|
I2O |
Intelligent I/O |
kbaud |
(100
kbaud) |
|
kb |
kilobit
(200 kb) |
|
kbps |
kilobits
per second (200 kbps); spell out on first reference if meaning is unclear |
kB |
kilobyte(s)
(10 kB) |
|
kg |
kilogram
(50 kg) |
|
kHz |
kilohertz
(800 kHz) |
|
km |
kilometer
(5 km) |
k‡ |
kilo-ohm |
|
kS |
(8
kSamples) |
|
kSps |
kilo
samples per second (8 kSps) |
|
LF |
low
frequency |
|
Mb |
megabit(s)
(400 Mb) |
|
Mbps |
megabits
per second (100 Mbps); spell out on first reference if meaning is unclear |
|
MB |
megabyte
(8 MB) |
|
MBps |
megabytes
per second (6 MBps); spell out on first reference if meaning is unclear |
|
MFLOPS |
Million
Floating Point Operations Per Second |
|
MHz |
megahertz
(800 MHz) |
|
M‡ |
megaohm
(1 M‡) |
|
MW |
megawatt
(5 MW) |
|
m |
meters
(4 m) |
|
µ |
mu,
micron (5 µ, etc.) (Note: a micron unit symbol is set in roman, not italics,
but a mathematical/numerical variable symbol is italicized.) This is from the
Symbol font the only one I had and it looks ital, but the real micron
symbol should be more roman looking. |
|
µA |
microampere
(10 µA) |
|
µF |
microfarad
(20 µF) |
|
µg |
microgram
(10 µg) |
|
µH |
microhenry
(5 µH) |
|
µm |
micrometer
(30 µm) |
|
µs |
microsecond
(20 µs) |
|
µW |
microwatt
(4 µW) |
|
mm |
millimeters
(5 mm) |
|
mA |
milliampere
(10 mA) |
|
mg |
milligram
(200 mg) |
|
mH |
millihenry
(1 mH) |
|
m‡ |
milliohm
(1 m‡) |
|
ms |
millisec
(40 ms) |
|
mV |
millivolt
(20 mV) |
|
mW |
milliwatt
(5 mW) |
|
nA |
nanoampere
(5 nA) |
|
nF |
nanofarad
(5 nF) |
|
Nm |
newton
meter (1 Nm) |
|
nm |
nanometer
(5 nm) |
|
ns |
nanosecond
(8 ns) |
|
Pa |
Pascal
(1 Pa) |
|
P |
Peta |
|
peta |
a
thousand trillion (petaflops = a thousand teraflops) |
|
petabit |
|
|
Pbps |
petabits per second (12
Pbps); spell out on first reference if meaning is unclear |
|
ps |
picosecond
(10 ps) |
|
pA |
picoampere
(5 pA) |
|
pF |
picofarad
(3 pF) |
|
pW |
picowatt
(4 pW) |
|
rpm |
revolutions
per minute (120 rpm) |
|
rps |
revolutions
per second (2 rps) |
|
RS-232, etc. |
hyphenate
between letters and digits |
|
T |
tera |
|
Tb |
terabits |
|
Tbps |
terabits
per second (10 Tbps); spell out on first reference if meaning is unclear |
|
TB |
terabytes
(2 TB) |
|
U |
unit
of vertical pitch (6U board = 44.45 mm or 1.75 inches) |
|
V |
volt
(5 V) |
|
VA |
voltampere
(10 VA) |
|
Vac |
volts
alternating current (5 Vac) |
|
Vdc |
volts
direct current (6 Vdc) |
|
W |
watt
(10 W) |
|
x |
unknown
quantity/variable (italicize) |