Siemens Ruggedcom RMC Installation Manual page 18

Chapter 2
Installing the Device
CAT-5 network cabling can be constructed in two possible configurations: Straight through and crossover (X-
over). Straight through cabling involves a pin-to-pin connection, while crossover cabling matches the transmitting
differential pair to the receiving differential pair. The following summarizes the two possible configurations:
TIA 568B Straight Through Pin-Out
Device 1
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
When connecting to end devices, the X-Over switch should be selected to reflect the type of cabling used.
Specifically, straight through should be selected when using straight through cabling, and crossover should be
selected when using crossover cabling.
12
Device 2
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
TIA 568B Crossover Wiring Pin-Out
Device 1
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
Using Straight Through or Crossover Copper Wiring
RUGGEDCOM RMC
Installation Guide
Device 2
Pin Colour
1 White/Green
2 Green
3 White/Green
6 Green