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Technologies
STAD156WT-15 Equipment Manual
Release 01/2019
7
UART3
(J15)
1
5V
TtyS3
5V
2
RX3
3
TX3
RS232
4
GND
UART4
(J16)
1
5V
TtyS4
5V
2
RX4
3
TX4
RS232
4
GND
485 Interface(J16):
Interface
Pin
Definition
Device Node
Level
J17
1
A
ttyS4
RS485
2
B
3
GND
2.2 USB-HOST Interface
The STAD070WT-11 has integrated 4 USB-HOST. The J8, J9, and J10
interfaces are 3-way USB-HOST integrated in the mother-board. The
3-way USB interface is extended by the SMSC-USB2514B chip. The chip
is standardized, convenient, fast, and cost-effective, therefore the
performance of the circuit is more stable. The chip expands the output of
the 3-channel HOST interface, which is the same as the USB interface of
a normal PC. It can be connected to USB peripherals such as USB
keyboard and mouse, USB flash drive, and USB interface camera
(supporting UVC protocol).
J7 is a native USB interface. It is recommended to connect a USB camera
to this interface.