Weidmuller IE-MC-VL Series - Industrial Ethernet Media Converters - Manual (Page 9)

ATTENTION Before connecting the device to the DC power inputs, make
sure the DC power source voltage is stable.
Communication Connections
IE-MC-VL models have one 10/100BaseT(X) Ethernet port, and one
100BaseFX (SC or ST type connector) fiber port.
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on the Media Converter’s front panel are
used to connect to Ethernet-enabled devices.
Below we show pinouts for both MDI (NIC-type) ports and MDI-X
(HUB/Switch-type) ports, and also show cable wiring diagrams for
straight-through and cross-over Ethernet cables.
RJ45 (8-pin, MDI) Port Pinouts RJ45 (8-pin, MDI-X) Port Pinouts
1 8
Pin Signal
1
2
3
6 Tx+
Tx-
Rx+
Rx- 1 8
Pin Signal
1
2
3
6 Rx+
Rx-
Tx+
Tx-
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
Straight-Through Cable
RJ45 Plug Pin 1
Switch Port
RJ45
Connector
RJ45
Connector
Tx+
Tx-
Rx+
Rx-
NIC Port
Cable Wiring
3 3
6 6
1 1
2 2
Rx+
Rx-
Tx+
Tx-
RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring
Cross-Over Cable
RJ45 Plug Pin 1
Switch Port
(NIC Port)
RJ45
Connector
RJ45
Connector
Tx+
Tx-
Rx+
Rx- (Rx+)
(Rx-)
(Tx+)
(Tx-) (Tx+)
(Tx-)
(Rx+)
(Rx-)
Switch Port
(NIC Port)
Cable Wiring
3 1
6 2
1 3
2 6
Rx+
Rx-
Tx+
Tx-
100BaseFX Ethernet Port Connection
The concept behind the SC port and cable is quite straightforward. Suppose
you are connecting devices I and II. Contrary to electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently, one of
the optical lines is used to transmit data from device I to device II, and the
- 9 -