5
【
Power input
】
IT-SDS-302-T-2D series provide DC power input, voltage input is, DC power adapter specification is internal size 2.5mm, external size
5.5mm.
【
DIP switch
】
Top panel provide 4 bit DIP switch to set function(ON is effective), 1, 3, 4 is hold, 2 is factory default, if you change the DIP switch statue,
please power off and power on.
【
Communication connector
】
IT-SDS-302-T-2D series provide 1pcs 10Base-T/100BaseTX Ethernet port
（
RJ45
）
and 2 port RS-232
（
RJ45
）
or 2 port RS-485/422
10/100BaseT(X) Ethernet port
The pinout of RJ45 port display as below, 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 .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/100Base-TX are used in
MDI/MDI-X, the define of Pin in the table as below.
NO.
MDI signal
MDI-X signal
1
TX+
RX+
2
TX-
RX-
3
RX+
TX+
6
RX-
TX-
4
、
5
、
7
、
8
—
—
Note
：
“TX±”Transmit Data±
，
“RX±”Receive Data±
，
“—” Not use
。
DC
1
8
