GW Instek GOS-6200 - Manual (Page 20)

GOS-6200 OSCILLOSCOPE
USER MANUAL
⎯ 34 ⎯
(39)EXT—This BNC socket is the external trigger signal input.
In dual X-Y mode, signals at this input are used for the X deflection.
Pressing the TRIG. SOURCE (29) pushbutton until the information of
“EXT, slope, coupling” is shown up in the readout and the TRIG.
SOURCE “EXT or E/10” LED is lighted, switches the input on.
The outer (ground) connection is galvanically connected to the
instrument ground and consequently to the safety earth contact of the
line/mains plug.
The maximum input voltages of the instrument input terminals and probe
input terminals are listed in the section of 3-6. “Withstanding voltage of
Input terminals”. Do not apply voltage higher than the limit.
4-2.Rear Panel
The rear panel provides input power and additional signal connections.
GOS-6200 OSCILLOSCOPE
USER MANUAL
⎯ 35 ⎯
(40)Line voltage selector and input fuse holder—Select power source
and contain the primary power fuse
The fuse rating is shown in the section of 3-2 Checking the line
voltage.
(41)AC power input connector
Connect the AC power cord to the power supply of instrument, the
power cord protective-ground connection is connected to the exposed
metal part of the instrument. The power cord must be connected to a
proper grounded source for electrical-shock protection.
(42)TRIGGER SIGNAL Output—BNC socket
The signal selected by the TRIG. SOURCE (29) is available. This
output may be used to connect to a frequency counter or other
instrument.
(43)Z-Axis Input—BNC socket
Connect external signals to the Z-axis amplifier for intensity
modulating the CRT display. This terminal is DC-coupled. The
intensity is lowered by a positive signal, while it is increased by a
negative signal.