Extron Electronics ISM 824 - Manual (Page 27)

2-5 ISM 824 Integration Scaling Multiswitcher • Installation
Cabling and RJ-45 connector wiring
It is vital that the Ethernet cables used be the correct type of cable, and that they be
properly terminated with the correct pinout.
Choosing a network cable
Ethernet links use Category (CAT) 3, 4, 5, 5e, or 6, unshielded twisted pair (UTP)
or shielded twisted pair (STP) cables, terminated with RJ-45 connectors. Ethernet
cables are limited to 328' (100 m).
The cable used depends on the network speed. The ISM supports both 10 Mbps
(10Base-T — Ethernet) and 100 Mbps (100Base-T — Fast Ethernet), half-duplex and
full-duplex, Ethernet connections.
• 10Base-T Ethernet requires, at a minimum, CAT 3 UTP or STP cable.
• 100Base-T Fast Ethernet requires, at a minimum, CAT 5 UTP or STP cable.
Terminating the network cable
The cable can be terminated as either a patch cable or a crossover cable (figure 2-4)
and must be properly terminated relevant to the 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.
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RJ-45 Connector
Insert
Twisted
Pair Wires
Pins:
Side View
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 2-4 — RJ-45 connector pinout tables
d
Reset button and LED — Pressing this recessed button causes
certain IP functions and Ethernet connection settings to be reset
to the factory defaults. The green LED above the button blinks a
varying number of times to indicate which reset mode has been entered.
See chapter 3, “Operation and Setup”, “Resetting the unit with the reset
button” section, for information on reset modes.
RESET