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If using external EXTV power source: connect pin 2 to pin 3 of J205; and connect pin 2 to pin 3 of J204.
5. REMOTE CONTROL
The LCR meter is available with RS232C interface and USB HOST as standard. GPIB is an optional interface.
5-1. RS232C Interface
The RS232C interface of this LCR meter is not strictly based on international RS232 standards. Only the
minimal subset as table 5-1 is available.
Table 5-1 Fig.5-1 Connection illustration
Signal
Abbreviation Connector
’s Pin number
Send data
TXD
2
Receive data
RXD
3
Ground
GND
5
5-2. USB HOST
The USB HOST can be used to control the LCR meter It is in compliance with USMTMC-USB488 and USB2.0
protocols. When using USBTMC interface, user can write commands via Labview to control the instrument.
In the first time of connecting the instrument to computer via USB cable, the computer will reminds of
“Find New
Device
” and then pop up installation windows. Follow the installation instructions and install the USB driver
successfully. A
“USB Test and Measurement Device” will be found in the Device Manager.