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4
5
6
7
8
9
COM_6（option）：
(2.0mm Pitch 2X5 Pin Header), COM4 Port, up to one standard RS232 port are
provided. They can be used directly via COM cable connection.
Signal Name
DCD
TXD
Ground
RTS
JP6 Setting: RI/5V/12V
43. TB-528C1U2P1/TB-528C1U2（option）:
SBC-7111 Riser Card, TB-528C1U2P1 CN3 connect to SBC-7111 CN3 pin Header.
TB-528C1U2P1 Top：
CN3：
(1.27mm Pitch 2X30 Pin Header), connect to SBC-7111 CN3 pin Header.
DTR (Data Terminal Ready)
Ground
DSR (Data Set Ready)
RTS (Request To Send)
CTS (Clear To Send)
JP6 Setting:
Pin1-2: RI (Ring Indicator)
Pin3-4 : 5V Standby power (option)
Pin5-6: 12V Standby power (option)
Pin#
Pin#
1
2
3
4
5
6
7
8
9
10
(default)
Signal Name
RXD
DTR
DSR
CTS
NC
52
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