Serial port 1/ 2 connector (jcom1/ jcom2), Serial port 3/ 4 connector (jcom3/ jcom4) – Avalue EPI-QM87R User Manual
Page 28
EPI-QM87R/ EPI-QM87
28 EPI-QM87R/ EPI-QM87 User
’s Manual
2.4.12
Serial port 1/ 2 connector (JCOM1/ JCOM2)
JCOM1
Signal
PIN
IN
Signal
RI#_1
9
10
NC
RTS#1
7
8
CTS#_1
GND
5
6
DSR#_1
TXD_1
3
4
DTR#_1
DCD#_1
1
2
RXD_1
JCOM2
Signal
PIN
IN
Signal
RI#_2
9
10
NC
RTS#2
7
8
CTS#_2
GND
5
6
DSR#_2
TXD_2
3
4
DTR#_2
DCD#_2
1
2
RXD_2
2.4.13
Serial port 3/ 4 connector (JCOM3/ JCOM4)
JCOM3
Signal
PIN
IN
Signal
NRIC#
9
10
NC
NRTSC#
7
8
NCTSC#
GND
5
6
NDSRC#
NTXDC
3
4
NDTRC#
NDCDC#
1
2
NRXDC
JCOM4
Signal
PIN
IN
Signal
NRID#
9
10
NC
NRTSD#
7
8
NCTSD#
GND
5
6
NDSRD#
NTXDD
3
4
NDTRD#
NDCDD#
1
2
NRXDD
JCOM1
JCOM2
JCOM4
JCOM3
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