Extron electronic ISM 482 manual Cabling and RJ-45 connector wiring, Choosing a network cable

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).

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.

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.

•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.

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:

•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

Patch (straight) cable

					Side 1		Side 2
				Pin	Wire color	Pin	Wire color
				1	White-orange	1	White-orange
Side		Pins:	RJ-45	2	Orange	2	Orange
				3	White-green	3	White-green
	1 2 3 4 5 6 7 8
			Connector
				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
		Insert			Side 1		Side 2
		twisted		Pin	Wire color	Pin	Wire color
	pair wires.			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 2-8 — RJ-45 connector pinout tables

2-8 Integration Scaling Matrix Switcher • Installation