66
3
External Trigger
/FSK/Burst
This signal can be used as external signal source in
Sweep, FSK and Burst mode.
4
Modulation In
Modulation waveform input, use it as external signal
source
5
RS232 port
Through this interface, the generator can be
connected to a PC and controlled via PC software
6
Power socket
AC input connector
7
Fuse
Use the specified fuse according to the voltage scale.
8
Power switch
Switch between 110V and 220V.
9
USB Host port
Connect as a "host device" with an external USB
device, such as connect a USB disk to the instrument.
10
USB Device port
Connect as a "slave device" with an external device,
such as connected to a PC and controlled via PC
software.
4.1.1 Front/Rear Panel and User Interface (P4120
– 4121)
Figure 0-1 Front panel overview
1
LCD
Display the user interface
2
Menu selection
buttons
Include 5 buttons: F1
～
F5, activate the corresponding menu
3
Number keys
Input parameters, include: number, point and plus/minus
sign
4
Knob
Change the current highlighted number, also can be used to
select file location or switch the character of the soft
keyboard when entering file name.
5
Direction key
Move the cursor of the focused parameter or select the file
locations
