Ethernet
Connection
This section provides a high level discussion of the Ethernet connection to the switcher and a
primer on the subject of subnetting. Topics that are covered, include:
Ethernet Link
Subnetting — A Primer
Ethernet Link
The rear panel Ethernet connector on the MPX 866 A matrix switcher can be connected to
an Ethernet LAN or WAN. This connection makes SIS control of the switcher possible using a
computer connected to the same LAN.
Ethernet Connection
The Ethernet cable can be terminated as a straight-through cable or a crossover cable and
must be properly terminated for your application (see figure 69).
Crossover cable — Direct connection between the computer and the
MPX 866 A matrix switcher
Patch (straight-through) cable — Connection of the MPX 866 A matrix switcher to
an Ethernet LAN
A cable that is wired as T568A at one end
and T568B at the other (Tx and Rx pairs
reversed) is a "crossover" cable.
A cable wired the same at both ends is
called a "straight-through" cable, because
no pin/pair assignments are swapped.
12345678
RJ-45
Connector
Insert Twisted
Pair Wires
Pins:
Crossover Cable Straight-through Cable
Pin
1
2
3
4
5
6
7
8
Wire color
White-green
Green
White-orange
Blue
White-blue
Orange
White-brown
Brown
Wire color
T568A T568B
End 1 End 2 End 1 End 2
White-orange
Orange
White-green
Blue
White-blue
Green
White-brown
Brown
Pin
1
2
3
4
5
6
7
8
Wire color
White-orange
White-green
Blue
White-blue
White-brown
Brown
Wire color
T568BT568B
White-orange
OrangeOrange
White-green
Blue
White-blue
GreenGreen
White-brown
Brown
Figure 69. RJ-45 Connector Pinout Tables
MPX 866 A Media Presentation Matrix Switcher • Ethernet Connection 113113
