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2.2.2.11
SD Slot
UBC-220 supports SD/MMC card in Class2, 4, 6, 8, 10. Supported capacity is up to
32G (SDHC)
Pin
1
2
3
4
5
6
7
8
9
2.2.2.12
COM Port
UBC-220 provides one 6-pin terminal block connector as serial communication inter-
face port. The port can support RS-232 mode communication.
Pin
1
2
3
4
5
6
UBC-220 User Manual
Figure 2.9 USB OTG
Signal Name
DAT3
CMD
GND
+3.3V
CLK
GND
DAT0
DAT1
DAT2
Figure 2.10 SD Slot
Description
RX
RTS
TX
CTS
GND
N/C
Figure 2.11 COM Port
14
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