Keysight Technologies U4301 User Manual page 4

Safety Symbols
Table 1
Symbol
N
L
4
Safety Symbol
Description
Direct current
Alternating current
Both direct and alternating current
Three phase alternating current
Three phase alternating current
Earth ground terminal
Protective earth ground terminal
Frame or chassis ground terminal
Terminal is at earth potential
Equipotentiality
Neutral conductor on permanently
installed equipment
Line conductor on permanently installed
equipment
On (mains supply)
Off (mains supply)
Standby (mains supply). The instrument is
not completely disconnected from the
mains supply when the power switch is in
the standby position
In position of a bi-stable push switch
Keysight U4301 PCIe Gen3 Analyzer User's Guide