GE MAC 5500 Service Manual page 157

Revision E
Appendix A –Abbreviations: Standard Abbreviations
V3R precordial lead
V456 V4, V5, V6
V4R precordial lead
V ac volts, alternating current
V dc voltage, direct current
VA volt-amperes
Var variable
VDE Verband Deutscher Elektrotechniker (German regulatory agency)
Vent. ventricular
VF ventricular fibrillation
VGA video graphics array
VIA versatile interface adapter
VIO violet
Volt voltage
VRAM video RAM
vs versus
w/ with
W watt
Warfar Warfarin
WHT white
WI Wisconsin
x by (as in "8-1/2 x 11")
XCV transceiver
X,Y,Z orthogonal leads
Y year, yellow
yr year
yrs years
YY year

SHIFTed or alternate function

micro
F
microfarad
s, sec
microsecond
68K 68000
& and
# number
C
degrees Celsius
F
degrees Fahrenheit

Ohm, ohm
% percent

registered
> greater than
< less than
± plus or minus
* An asterisk after a signal name indicates the signal is active at its
relatively lower potential, or "active-low." Signals without the
MAC 5500 resting ECG analysis system
2020299-020
W
X
Y
Symbols
A-11