Straight-Through Wiring - SMC Networks EliteConnect SMC2555W-AG2 User Manual

B
Cables and Pinouts
Table B-1. 10/100BASE-TX MDI Port Pinouts
Pin
1
2
3
4
5
6
7
8
Note: The "+" and "-" signs represent the polarity of the wires that
make up each wire pair.

Straight-Through Wiring

Because the 10/100 Mbps port on the access point uses an MDI pin configuration,
you must use "straight-through" cable for network connections to hubs or switches
that only have MDI-X ports. However, if the device to which you are connecting
supports auto-MDIX operation, you can use either "straight-through" or "crossover"
cable.
End A
B-2
MDI Signal Name
Transmit Data plus (TD+)
Transmit Data minus (TD-)
Receive Data plus (RD+)
GND (Positive Vport)
GND (Positive Vport)
Receive Data minus (RD-)
-48V feeding power (Negative- Vport)
-48V feeding power (Negative- Vport)
EIA/TIA 568B RJ-45 Wiring Standard
10/100BASE-TX Straight-through Cable
White/Orange Stripe
White/Green Stripe
1
2
3
4
White/Blue Stripe
5
6
7
8
White/Brown Stripe
Orange
Blue
Green
Brown
1
2
End B
3
4
5
6
7
8