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Model 0403

14

1

Ethernet™ Pocket Hub™

1. INTRODUCTION

This guide is intended for the system or network administrator
responsible for installing and monitoring a TRANSITION Networks
0403 Ethernet Pocket Hub. A working knowledge of local area
network (LAN) operations, including familiarity with
communications protocols used on interconnected LANs, is
assumed.

The 0403 Ethernet Pocket Hub

The Model 0403 10BaseT 4-Port Ethernet Hub (E-TBT-HB-0403), is
a low cost Ethernet repeater. Designed to meet IEEE 802.3 10BaseT
standards, the 0403 Pocket Hub is a fully functional repeater in a
compact (4.80" X 2.77" X 0.95”) case. 

0403 Ethernet Pocket Hub Features

automatic link partitioning (jabber function isolates network
failures)

preamble regeneration 

automatic polarity detection and correction

Ethernet™
Pocket Hub™

4            3            2            1

Power

1
2

3
4

E-TBT-0403

Link/Transmit

n

e

t

w

o

r

k

s

T R A N S I T I O N

Mpls, MN 55344

Cable Specifications

Cable Characteristics

The physical characteristics of the 10BaseT cable must meet or exceed
IEEE 802.3 10BaseT specifications. 

10BaseT Cable Specifications
Either shielded or unshielded twisted pair can be used. Level 3 wire or
better is recommended.  

• Gauge. . . . . . . . . . . . . . . . . .  26 to 22 AWG
• Attenuation  . . . . . . . . . . . . .  Less than 11.5 dB @ 5-10 MHz
• Differential Characteristic  . . 85 -110 

Impedance 

@ 10 MHz 

• Maximum Distance  . . . . . . . 100 Meters (330 Feet)

Segment Distance

Media

Maximum

Maximum

Minimum

Maximum

Segment

Number

Segment

Medium Medium

Type

MAU/ 

Length

Propagation

End to End

Segment

(meters)

Velocity

Propagation
Delay/Segment

10Base2

30

185

0.65 c

950 

10BaseT

2

100 

†††

0.59 c

1000

c = 3 x 10

8

meters/second

†††

Maximum segment length depends on the cable characteristics

Summary of Contents for 403

Page 1: ...ing using or maintaining the TRANSITION Networks Model 0403 Ethernet Pocket Hub contact TRANSITION Networks Technical Support at 800 260 1312 or contact your local distributor 7356 C Pocket Hub Ethernet E TBT HB 0403 Model 0403 ...

Page 2: ...No Problem Found TN s total liability in connection with the products and their installation to all persons and from all causes in the aggregate whether in contract tort or strict liability shall not exceed the amount paid to TN for the product directly related to the alleged damage However in no event shall TN have any liability to a customer or any third party for products manufactures according...

Page 3: ...om Internet http www transition com THE ABOVE WARRANTY IS EXCLUSIVE AND EXTENDS ONLY TO PRODUCTS ASSEMBLED BY TRANSITION NETWORKS INC TO THE EXTENT PERMITTED BY LAW TN DOES NOT MAKE AND DISCLAIMS ALL OTHER WARRANTIES EXCEPT TITLE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF DESCRIPTION MERCHANTIBILITY FITNESS FOR A PARTICULAR PURPOSE OR NON INFRINGEMENT AND ANY WARRANTY BASED ...

Page 4: ...mble regeneration automatic polarity detection and correction Ethernet Pocket Hub 4 3 2 1 Power 1 2 3 4 E TBT 0403 Link Transmit n e t w o r k s T R A N S I T I O N Mpls MN 55344 Cable Specifications Cable Characteristics The physical characteristics of the 10BaseT cable must meet or exceed IEEE 802 3 10BaseT specifications 10BaseT Cable Specifications Either shielded or unshielded twisted pair ca...

Page 5: ...ket Hub Ethernet Pocket Hub n e t w o r k s T R A N S I T I O N Mpls MN 55344 n e t w o r k s T R A N S I T I O N Mpls MN 55344 n e t w o r k s T R A N S I T I O N Mpls MN 55344 n e t w o r k s T R A N S I T I O N Mpls MN 55344 n e t w o r k s T R A N S I T I O N Mpls MN 55344 Model 0403 Ethernet Pocket Hub Specifications Dimensions 4 80 X 2 77 X 0 95 122mm x 70mm x 24mm Environment Temperature 0 ...

Page 6: ...attempt to repair the 0403 Pocket Hub or power supply adapter unit Failure to observe this warning could result in personal injury or death from electrical shock NOTE Failure to observe the above warning will immediately void the warranty Fault Isolation If two network devices fail to communicate through the 0403 Pocket Hub consider the following Are the LEDs described in the previous section func...

Page 7: ... The site for the 0403 Ethernet Repeater Hub must provide AC power outlet for each Hub Adequate ventilation Standard environmental conditions Isolation from electrical noise including radio transmitters and broadband amplifiers motors high power electrical lines or fluorescent light fixtures Additionally The twisted pair cables should not run in the same conduit with power line cables Phone lines ...

Page 8: ...Hubs the transmission path between any two Data Terminating Equipment DTE terminals can consist of no more than five segments To assign segment numbers to cable connections 1 Determine the two terminals in the network which are separated by the greatest number of segments 2 Assign a segment path between the terminals by labeling the cable connected to one of the terminals segment 1 and the segment...

Page 9: ...10BaseT Ethernet Pocket Hub n e t w o r k s T R A N S I T I O N Mpls MN 55344 Straight through 10BaseT Crossover 10BaseT 2 Ethernet Pocket Hub n e t w o r k s T R A N S I T I O N Mpls MN 55344 Ensuring Correct 10BaseT Configuration The 10BaseT cable and RJ 45 jacks for Hub to Terminal connections must be configured as straight through The 10BaseT cable and RJ 45 jacks for Hub to Hub connections mu...

Page 10: ...h cable orientation or to Pocket Hub RJ 45 jack connector using crossover cable orientation NOTE Examples are provided in the pages that follow 3 INSTALLATION NOTE 0403 Ethernet Pocket Hub Link Integrity cannot be disabled All devices connected to the Pocket Hub MUST have link functions enabled To install the 0403 Ethernet Pocket Hub Unpack the 0403 Pocket Hub Connect 10Base2 Cable to the 0403 Poc...

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