Moxa IMC-21-M-ST Guide d'installation télécharger pdf (Page 8)

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Communication Connections

IMC-21 has one 10/100BaseT(X) or 10BaseT Ethernet port.

RJ45 Ethernet Port Connection

The 10/100BaseT(X) or 10BaseT port located on IMC’s front panel are used to

connect to Ethernet-enabled devices.

Below we show pinouts for both MDI (NIC-type) and MDI-X

(HUB/Switch-type) ports, and also show cable wiring diagrams for

straight-through and cross-over Ethernet cables.

MDI Port Pinouts MDI-X Port Pinouts 8-pin RJ45

Pin Signal Pin Signal

1 Tx+ 1 Rx+

2 Tx- 2 Rx-

3 Rx+ 3 Tx+

6 Rx- 6 Tx-

RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring

Straight-Through Cable

RJ45 Plug Pin 1

Switch Port

RJ45

Connector

RJ45

Connecto

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-

Fiber Optical Port Connection

The concept behind the SC/ST 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

other optical line is used transmit data from device II to device I, for

full-duplex transmission.

All you need to remember is to connect the Tx (transmit) port of device I to the

Rx (receive) port of device II, and the Rx (receive) port of device I to the Tx

(transmit) port of device II. If you make your own cable, we suggest labeling

the two sides of the same line with the same letter (A-to-A and B-to-B, as

shown below, or A1-to-A2 and B1-to-B2).

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Commentaires sur ces manuels

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Moxa IMC-21-M-ST Guide d'installation Page 8

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