DMP 64 Plus • Installation
11
TP Cable Termination for Ethernet Communication
It is vital that your Ethernet cable be the correct cable type and that it be properly terminated
with the correct pinout. Ethernet links use Category (CAT) 3, 5e, or CAT 6, unshielded
twisted pair (UTP) or shielded twisted pair (STP) cables, terminated with RJ-45 connectors.
Ethernet cables are limited to a length of 328 feet (100 meters). The cable can be terminated
as either a patch cable or a crossover cable (see figure 10) and must be properly terminated
for the application:
•
Patch (straight-through) cable
— Connection of the device to an Ethernet hub,
router, or switch that also hosts a controlling computer.
•
Crossover cable
— Direct connection between the switcher and a controlling
computer
1 2 3 4 5 6 7 8
RJ-45
Connector
Insert Twisted
Pair Wires
Pins:
A cable that is wired as TIA/EIA 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.
T568B
T568A
T568B
T568B
Straight-through Cable
(for connection to a switch, hub, or router)
End 1
End 2
Pin
Wire Color
Pin Wire Color
1
white-orange
1
white-orange
2
orange
2
orange
3
white-green
3
white-green
4
blue
4
blue
5
white-blue
5
white-blue
6
green
6
green
7
white-brown
7
white-brown
8
brown
8
brown
Crossover Cable
(for direct connection to a PC)
End 1
End 2
Pin
Wire Color
Pin Wire Color
1
white-orange
1
white-green
2
orange
2
green
3
white-green
3
white-orange
4
blue
4
blue
5
white-blue
5
white-blue
6
green
6
orange
7
white-brown
7
white-brown
8
brown
8
brown
Figure 10.
RJ-45 Pin Assignment for Ethernet Connection
Reset Modes
The rear panel
Reset
button initiates three levels of resets (numbered 1, 4, and 5). Use a
pointed stylus, ballpoint pen, or small screwdriver to access the recessed button.
See the
table on page 12 for a summary of the reset.
ATTENTION:
•
Review the reset modes carefully. Some reset modes delete all user loaded content
and revert the device to default configuration.
•
Analysez minutieusement les différents modes de réinitialisation. Certains modes de
réinitialisation suppriment l’intégralité du contenu chargé de l’utilisateur et remettent
l’appareil au mode de configuration par défaut.
NOTE:
table close all IP connections, Telnet
connections, and sockets.
10
