37
former command.
5.2 USB Interface
5.2.1 USB introduction
USB is short for universal serial bus. As one kind of the external bus standard, USB is used for the
communication between PC and external devices. In general, there are four pieces of circuits:
Signal
Code
Color
Pin
Power
VCC
Red
1
Data
low-terminal
Data- White
2
Data
high-terminal
Data+ Green
3
Grounding GND Black
4
This instrument uses square type socket and the pin sequence is as follows:
This instrument uses USB-B type interface.
5.2.2 USB Communication
The instrument is communicating through USB simulated Virtual Serial Port. Before using it, please
install the driver in PC.
Also, the baud rate is needed to be set.
5.3 Handler Interface
For convenience of industrial manufacture, TH1952 is provided with Handler interface. The interface
definition is as follows:
