RIGOL DG4000 Series User Manual
Page 38
DG4000 Series User’s Guide
1-14
4. USB Device
PC can be connected through this interface to control the generator remotely
through PC software.
5. 10MHz In/Out
BNC female connector with 50Ω nominal impedance. The function of this
connector is determined by the type of clock used by the generator. DG4000
can use internal or external clock (refer to the introduction in Clock Source ).
When internal clock source is used, the connector (used as 10MHz Out)
can output 10MHz clock signal generated by the internal crystal oscillator
of the generator.
When external clock source is used, the connector (used as 10MHz In)
accepts a 10MHz external clock signal.
This connector is usually used to synchronize multiple instruments (refer
to the introduction in Sync).
6. CH1: Mod/FSK/Trig
BNC female connector with 50Ω nominal impedance. Its function is
determined by the current working mode of CH1.
Mod:
If AM, FM, PM, PWM or OSK is enabled for CH1 and external modulation
source is used, this connector accepts an external modulation signal.
FSK:
If ASK, FSK or PSK is enabled for CH1 and external modulation source is
used, this connector accepts an external modulation signal (users can set
the polarity of the signal).
Trig In：
If CH1 is in sweep or burst mode and external trigger source is used, this
connector accepts an external trigger signal (users can set the polarity of
the signal).
Trig Out：
If CH1 is in sweep or burst mode and internal or manual trigger source is
used, this connector outputs a trigger signal with specified edge.
7. CH2: Mod/FSK/Trig
BNC female connector with 50Ω nominal impedance. Its function is
determined by the current working mode of CH2.