Hexin Technology HXSP-1004B 4-Port RS-485/RS-422 to Ethernet 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
—
—
DC-IN: 5VDC power supply input
10/100M Ethernet: 10/100Base-T(X) Ethernet input and output
ACT LED indicator: Bright all along when connect power supply
LINK LED indicator: Bright all along when connected
RX/TX
LED
indicator:
Bright
all along
when
connect
to
the
network,
Flash
when
data transfer
1, 2, 3, 4: RS-232 port (HXSP-1004A),
RS-485/422 port (HXSP-1004B)
10/100Base-T Ethernet port
The 10/100BaseT(X) ports located on facility front panel. The PIN define of RJ45 port display as
follows, Connect by UTP or STP. The connect distance is no more than 100m. 100Mbps is used
100Ωof UTP 5, 10Mbps is used 100Ωof UTP 3, 4, 5.
RJ 45 port support automatic MDI/MDI-X operation. Can connect the PC, Server, Converter and
HUB by straight–though cable. Pin 1,2,3,6 Communication connect in MDI. 1→3, 2→6, 3→1,
6→2
are
used
as
cross-over
cable
in
the
MDI-X
port
of
Converter
and
HUB.
10Base-T/100Base-TX are used in MDI/MDI-X, the PIN define 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 interface