Transition Networks 401 manual Introduction, Ethernet Pocket Hub, Cable Specifications

1. INTRODUCTION

This guide is intended for the system or network administrator responsible for installing and monitoring a TRANSITION Networks 0401 Ethernet Pocket Hub. A working knowledge of local area network (LAN) operations, including familiarity with communications protocols used on interconnected LANs, is assumed.

The 0401 Ethernet Pocket Hub

The Model 0401 10BaseT 4-Port Ethernet Hub (E-TBT-HB-0401), is a compact, low cost, fully functional Ethernet repeater.

4 3 2 1

Ethernet™

Pocket Hub™

Power

1

2

Link/Transmit

3

4

T R A N S I T I O N

n e t w o r k s

Mpls, MN 55344

E-TBT-0401

When centrally located in a small installation, the 0401 Pocket Hub can be used to connect up to four terminal devices to a

		N S I T I O N
Ethernet™	Pocket Hub™	TRA

1 Model 0401

Model 0401 Ethernet Pocket Hub

Specifications

Dimensions

4.80" X 2.77" X 0.95" (122mm x 70mm x 24mm)

Environment
Temperature:	0-50°C,
Humidity	10-90%, non condensing,
Altitude	0-10,000 feet.

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 Ω 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
10BaseT	2	100 †††	0.59 c	1000

†c = 3 x 108 meters/second

†††Maximum segment length depends on the cable characteristics.

Ethernet™ Pocket Hub™ 10