Transition Networks E-PSW-TX-02 Ethernet Cable Specifications, Table of Contents

ETHERNET CABLE SPECIFICATIONS

10BASE-T/100BASE-TX Cable and Connector Specifications

The physical characteristics of the 10BASE-T /100BASE-TX cable and connectors must meet or exceed IEEE 802.3/802.3u specifications.

10BASE-T CABLE SPECIFICATIONS

Category 3 wire or better is required; category 5 wire (See 100BASE-TX) is recommended. Either shielded twisted pair (STP) or unshielded twisted pair (UTP) can be used. DO NOT USE FLAT OR SILVER SATIN WIRE.

Category 3: Gauge	24 to 22 AWG
Attenuation	28 dB/1000’ @ 10 MHz
Impedance	100 Ω ±10% @ 10 MHz
Maximum Cable Distance:	100 meters (330 feet)

100BASE-TX CABLE SPECIFICATIONS

Category 5 wire or better is required. Either shielded twisted pair (STP) or unshielded twisted pair (UTP) can be used. DO NOT USE FLAT OR SILVER SATIN WIRE.

Category 5: Gauge	24 to 22 AWG
Attenuation	20 dB/1000’ @ 10 MHz
Impedance	100 Ω ±10% @ 10 MHz
Maximum Cable Distance:	100 meters (330 feet)

10BASE-T/100BASE-TX CONNECTOR CHARACTERISTICS:

The two active pairs in a 10BASE-T/100BASE-TX network are pins 1 & 2 and pins 3 & 6. Use only dedicated wire pairs (such as blue/white & white/blue, orange/white & white/orange) for the active pins. 10BASE-T /100BASE-TX cable for unlike devices (such as hub to terminal device) must be configured as straight through; 10BASE-T/100BASE-TX cable for like devices (such as hub to hub or terminal device to terminal device) must be configured as crossover.

		Straight Through Cable					Crossover Cable
Twisted		1	1	Twisted		1	1
Pair	#1	2	2	Pair	#1	2	2
Twisted		3	3	Twisted		3	3
Pair	#2	6	6	Pair	#2	6	6
		Connectors for unlike devices				Connectors for like devices

Table of Contents

1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1

Transition Networks’ Pocket Switches . . . . . . . . . . . . . . . . . .1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 The Evolving Ethernet Network . . . . . . . . . . . . . . . . . . . . . . .2 Increasing Bandwidth by Segmenting 10BASE-T Collision Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Doubling Bandwidth by Installing Full-Duplex . . . . . . . . . . .7 Increasing Bandwidth Ten-fold by Installing 100BASE-TX . . .9 Increasing Network Distance by Installing 100BASE-FX . . . .11

2 SITE CONSIDERATIONS. . . . . . . . . . . . . . . . . . . 11 3 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . 14

Unpacking the Transition Networks’ Pocket Switch . . . . . . .14 Installing on Flat, Stable Surface . . . . . . . . . . . . . . . . . . . . .14 Setting DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Installing Network Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .16

The 5-Segment Rule (10BASE-T) . . . . . . . . . . . . . . . . . . . . . . .17 The 512-Bit Rule (100BASE-TX/100BASE-FX) . . . . . . . . . . . . .18 Straight-Through/Crossover Rule (10BASE-T/100BASE-TX) . . .19 Connecting Twisted-Pair Copper Cable to RJ-45 Connectors (10BASE-T/100BASE-TX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Connecting Fiber Cable to TX/RX Connectors (100BASE-FX) . .21

Powering Transition Networks’ Pocket Switch . . . . . . . . . . .22

4 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Technical Support Contact . . . . . . . . . . . . . . . . . . . . . . . . .24

WARRANTY STATEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

ETHERNET CABLE SPECIFICATIONS . . . . . . . . . . . . . . . . . . 27

TRANSITION NETWORKS’ POCKET SWITCH SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

27 Transition Networks’ Pocket Switch i