SMC Networks EX245-EA2 Series User Manual

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No.EX※※-OMW0011-B
NOTE
・ When you use the EX245-SPN2A/EX245-SPN3A and the Autonegotiation function is disabled,
you must select the correct network cable, refer to Fig 3-11, 3-12.
・ Auto crossover function is not available when the Autonegotiation function is disabled.
・ Auto crossover function shall be capable of switching over their twisted pair ports automatically
between MDI and MDI-X pin assignment.
The following figure Fig. 3-11 shows examples on the use of two different cable types.
Patch cable
MDI
Pin
Pin
MDI-X
RJ45
M12
RJ45
M12
TD+ Transmit data+
1
1
1
1
RD+ Receive data+
RD+ Receive data+
3
2
3
2
TD+ Transmit data+
TD- Transmit data-
2
3
2
3
RD- Receive data-
RD- Receive data-
6
4
6
4
TD- Transmit data-
Crossover cable
MDI
Pin
Pin
MDI
RJ45
M12
RJ45
M12
TD+ Transmit data+ 1
1
1 1 TD+ Transmit data+
RD+ Receive data+
3
2
3
2
RD+ Receive data+
TD- Transmit data-
2
3
2
3
TD- Transmit data-
RD- Receive data- 6 4 6 4 RD- Receive data-
Crossover cable
MDI-X
Pin
Pin
MDI-X
RJ45 M12 RJ45 M12
RD+ Receive data+
1
1
1
1
RD+ Receive data+
TD+ Transmit data+
3
2
3
2
TD+ Transmit data+
RD- Receive data-
2
3
2
3
RD- Receive data-
TD- Transmit data-
6
4
6
4
TD- Transmit data-
Fig. 3-11 Patch and Crossover Cable details

SMC Networks EX245-EA2 Series Specifications

General

Brand	SMC Networks
Model	EX245-EA2 Series
Category	I/O Systems
Language	English