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Transition Networks E-PSW-TX-02 User Manual

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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

±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

±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.

Transition Networks’

Pocket Switch

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

i

27

Twisted
Pair #1

Twisted
Pair #2

Crossover Cable

Connectors for like devices

1

2

3

6

1

2

3

6

1

2

3

6

Twisted
Pair #1

Twisted
Pair #2

Straight Through Cable

Connectors for unlike devices

1

2

3

6