SMC Networks EX245-SPN1A Operation Manual page 20

Connection example
Case 1
IO controller or Switch
- Disable Autonegotiation
Port * Port #
MDI MDI-X
Case 2
IO controller or Switch
- Disable Autonegotiation
Port * Port #
MDI MDI-X
Fig. 3-12 Connection examples when using Disable Autonegotiation
3.2.2. FE terminal
The SI Unit must be connected to FE (Functional Earth) to divert electromagnetic interference. The
FE terminal and the FE pin of the two power connectors (XD1/XD2) are internally connected. Please
connect at least one of these three FEs to ground potential. For maximum protection the FE cable
should be as thick and short as reasonably possible. If it is difficult to shorten the power cable, it is
recommended to use the FE terminal screw.
3.2.3. Sensor/Load connection
Regarding the wiring of each module, refer to following section:
・
EX245-DX1 : Section 7.3
・
EX245-DY1 : Section 8.3
EX245-SPN2A/SPN3A
- Priorized startup (FSU)
- Disable Autonegotiation
Port 1
MDI
Patch Cable
EX245-SPN2A/SPN3A
- Priorized startup (FSU)
- Disable Autonegotiation
Port 1
MDI
Crossover Cable
EX245-SPN2A/SPN3A
- Priorized startup (FSU)
- Disable Autonegotiation
Port 2
MDI-X
Patch Cable
EX245-SPN2A/SPN3A
- Priorized startup (FSU)
- Disable Autonegotiation
Port 2
MDI-X
Crossover Cable
- 20 -
Port 1 Port 2
MDI MDI-X
Cable type
dependent upon
next port settings
Port 1 Port 2
MDI MDI-X
Cable type
dependent upon
next port settings
No.EX※※-OMW0011-A