Moxa Technologies EDS-308 manual Communication Connections, 10/100BaseTX Ethernet Port Connection

Communication Connections

EDS-308 models have 6, 7, or 8 10/100BaseT(X) Ethernet ports, and 2, 1, or 0 (zero) 100BaseFX (SC-type connector) fiber ports. EDS-305 models have 4 or 5 10/100BaseT(X) Ethernet ports, and 1 or 0 (zero) 100 BaseFX (SC-type connector) fiber ports.

10/100BaseT(X) Ethernet Port Connection

The 10/100BaseT(X) ports located on EDS’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.

MDI Port Pinouts

Pin	Signal
1	Tx+
2	Tx-
3	Rx+
6	Rx-

MDI-X Port Pinouts

Pin	Signal
1	Rx+
2	Rx-
3	Tx+
6	Tx-

8-pin RJ45

18

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

Switch Port

RJ45 Connector

Tx+

Tx-

Rx+

Rx-

	Straight-Through Cable
	RJ45 Plug Pin 1
	Cable Wiring
3		3
6		6
1		1
2		2

NIC Port

RJ45 Connector

Rx+

Rx-

Tx+

Tx-

RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring

Switch Port (NIC Port)

RJ45 Connector

(Rx+) Tx+

(Rx-) Tx-

(Tx+) Rx+

(Tx-) Rx-

Cross-Over Cable

RJ45 Plug Pin 1

Cable Wiring

3

6

1

2

Switch Port

(NIC Port)

RJ45

Connector

3Rx+ (Tx+)

6 Rx- (Tx-)

1 Tx+ (Rx+)

2 Tx- (Rx-)

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