User's Manual

UC-7112/7110 User’s Manual UC Finder
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Pin RS-232 RS-422
RS-485
(4-wire)
RS-485
(2-wire)
1 DCD TxDA(-) TxDA(-) ---
2 RxD TxDB(+) TxDB(+) ---
3 TxD RxDB(+) RxDB(+) DataB(+)
4 DTR RxDA(-) RxDA(-) DataA(-)
5 GND GND GND GND
6 DSR --- --- ---
7 RTS --- --- ---
8 CTS --- --- ---
Serial Console Port
The serial console port is a 4-pin pin-header RS-232 port. It is designed for serial console
terminals, which are useful for identifying the ThinkCore W341/321/311 boot up message.
Serial Console Port & Pinouts Serial Console Cable
4
3
2
1
Pin Signal
1 TxD
2 RxD
3 NC
4 GND
Internal SD Socket
ThinkCore W341/321 provides an internal SD socket for storage expansion. It allows users to plug
in a Secure Digital (SD) memory card compliant with the SD 1.0 standard for up to 1 GB of
additional memory space. To install an additional SD card, you must first remove the W341/321’s
SD outer cover to access the slot. The internal SD socket is located at the ThinkCore W341/321
bottom board; you can find the SD plug-in slot at the lower right side of W321 and top right side
of W341 shown as figures. Plug the SD card into the socket directly and remember to press the SD
card first if you want to take it out.