Rj45 Ports - Signal Description - RuggedCom MediaConverter Installation Manual

Installation
2.3 RJ45 Ports – Signal Description
The RJ45 port accepts standard category 5 unshielded twisted pair (UTP), or screened twisted pair
(STP) cable with RJ45 male connectors. Figure 5 shows the RJ45 port pin configuration.
PIN 8 PIN 8
PIN PIN SIGNAL SIGNAL
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Figure 5: RJ45 Port Pins
To accommodate signals from end devices as well as network switching equipment, the
RuggedMC is equipped with a crossover selection switch.
TM
Category 5 network cabling can be constructed in two 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. Table 1
summarizes the two possible configurations.
TIA 568B Straight Through Pinout
Device 1
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
Table 1 - Category 5 network cabling configurations: Straight through and Crossover
RuggedCom
®
PIN 1 PIN 1
RX+ RX+
RX- RX-
TX+ TX+
n.c. n.c.
n.c. n.c.
TX- TX-
n.c. n.c.
n.c. n.c.
Device 2
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
10
TIA 568B Crossover Wiring Pinout
Device 1
Pin Colour
1 White/Orange
2 Orange
3 White/Green
6 Green
RuggedMC™ RMC Installation Guide rev105
Device 2
Pin Colour
1 White/Green
2 Green
3 White/Orange
6 Orange