xx
interface
PT5040 Operation Manual Chapter 6 Introduction to [SYSTEM]
LAN interface and interface setups can be set, as shown in figure 6-2.
Figure 6-2 Interface
I/O
Move the cursor to the I/O: zone, following soft keys will be displayed.
RS232C Set RS232 interface as the I/O interface.
USB Set USB interface as the I/O interface.
LAN
Set LAN interface as the I/O interface.
Note:
Once an interface is selected, the cursor can only move in the corresponding zone.
For example, when RS232C interface is selected, the cursor can move only in the RS232C
setup zone.
PT50
RS232C
RS-232 standard, also called as asynchronous serial communication standard, has already been
widely used for data communication between computers, computer and external equipment. RS
is the English abbreviation of Recommended Standard; 232, the standard number. This standard
is issued by IEA in 1969, which rules to send one bit in a data line every time.
As most serial interfaces, the serial interface of PT50xx is also not strictly based on RS-232
standard but only uses the smallest subset of this standard. The signals are listed in the following
6-15
