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Pin
RS-232
RS-422
RS-485
1
TXD
TXD+
–
2
RXD
TXD-
–
3
RTS
RXD+
D+
4
CTS
RXD-
D-
5
GND
GND
GND
SD/SIM Card Sockets
The UC-8100A-ME-T comes with an SD socket for storage expansion, and
a SIM card socket for cellular communication. The SD card/SIM card
sockets are located at the lower part on the front panel. To install the
cards, remove the screw and the protection cover to access the sockets,
and then insert the SD card or the SIM card into the sockets directly. You
will hear a click when the cards are in place. To remove the cards, push
the cards in before releasing them.
Console Port
The console port is an RS-232 port that can be connected to with a 4-pin
pin header cable. You can use this port for debugging or firmware
upgrade.
Pin
Signal
1
TxD
2
RxD
3
NC
4
GND
USB Port
The USB 2.0 port is located at the lower part of the front panel and
supports a USB storage device driver. By default, the USB storage is
mounted at
/mnt/usbstorage.
Antenna Connectors
There are three antenna connectors on
the front panel of the UC-8100A-ME-T.
W1 and W3 are for cellular modules, and
W2 is for the GPS module. All three
connectors are of SMA type.
