Installation, cont'd
Cabling and RJ-45 connector wiring
It is vital that your Ethernet cables be the correct cables, 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 your 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.
•
•
Wiring the network cable
The cable can be terminated as either a patch cable or a crossover cable (figure 2-8)
and must be properly terminated for your application:
•
•
Figure 2-8 — RJ-45 connector pinout tables
2-8
Integration Scaling Matrix Switcher • Installation
Do not use standard telephone cables. Telephone cables will not support
Ethernet or Fast Ethernet.
Do not stretch or bend cables. Transmission errors can occur.
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.
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
Side
Pins:
RJ-45
1 2 3 4 5 6 7 8
Connector
Insert
twisted
pair wires.
Patch (straight) cable
Side 1
Side 2
Pin
Wire color
Pin
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
Side 1
Side 2
Pin
Wire color
Pin
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
Wire color
Wire color
Need help?
Do you have a question about the ISM 482 and is the answer not in the manual?
Questions and answers