Hexin Technology HXSP-1001 RS-232/RS-485/RS-422 to Ethernet TCP/IP Serial Device Server User Manual
Page 4
pin
MDI
signal
MDI-X
signal
1
TX+
RX+
2
TX-
RX-
3
RX+
TX+
6
RX-
TX-
4, 5, 7, 8
—
—
RJ 45 port support automatic MDI/MDI-X operation. can connect the PC , Server, Converter
and HUB by straight–though cable wiring . Pin 1, 2, 3, 6 Corresponding connection in MDI. 1→3,
2→6, 3→1, 6→2 are used as cross wiring in the MDI-X port of Converter and HUB. 10Base-T
are used in MDI/MDI-X, the define of Pin in the table as below.
1
8
Note：“TX±” transmit data±，“RX±” receive data±，“—”not use。
MDI(Straight-through cable):
RJ45
8
1
TX+
3
TX-
6
RX+
1
RX-
2
3
RX+
6
RX-
1
TX+
2
TX-
MDI-X (Cross-over cable)
RJ45
8
1
(RX+) TX+
3
(RX-) TX-
6
(TX+) RX+
1
(TX-) RX-
2
1
RX+ (TX+)
2
RX- (TX-)
3
TX+ (RX+)
6
TX- (RX-)
RS-232/485/422 port
RS-485/422 ( 4 bit terminal block)
1
T+/Data+
2
T-/Data-
3
R+
4
R-
RS-232 , DB9M (male, pin)
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS