ISM 482 Integrated Scaling Matrix Switcher • Ethernet Connection 69
Ethernet Connection
This section describes:
• Cabling
• Determining Default Addresses
• Connecting as a Telnet Client
The rear panel Ethernet connector (see figure 53) on the ISM 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.
Cabling
The Ethernet cables can be terminated as straight-through cables or crossover cables
(see figure 53) and must be properly terminated for your application:
• Patch (straight) cable — Connection of the ISM to an Ethernet hub, router, or
switcher that also hosts a controlling computer
• Crossover cable — Direct connection between the ISM and a controlling computer
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 that is 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 53. RJ-45 Connector Pinout Tables
