STANDARDS
Page 8
2.2) SYMBOLS
EQUIPMENT FRONT SYMBOLS
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
Earth connection
Impulsive command
Band-stop filter
Ground
Fuse
Low-pass filter
Chassis ground
Thermal breaker
High-pass filter
AC
Failure
Modulator,
demodulator
DC
Overtemperature
Stereo
Pulse current
Output monitoring
signal
Balance
Battery / accumulator
Input monitoring
signal
Amplifier
Positive connector
P
Direct power
monitoring socket
Adjustable gain
amplifier
Negative connector
P
Reflected power
monitoring socket
Loudspeaker
connection
OFF
L.O.
Local oscillator
monitoring socket
Audio connection
ON
Gating as opening
criterion
Headphone
connection
STAND-BY
Gating as closing
criterion
Stereo headphone
ON push-button
Channel / band filter
Star connection