LevelOne EHU-0500T User manual

10Mbps ETHERNET HUB

USER’S MANUAL

10Mbps Ethernet Hub

USER’S MANUAL

Trademarks:

All product and brand names are trademarks and/or registered

trademarks of their respective companies.

Federal Communications Commission Statement

This equipment generates, uses and radiate radio frequency energy

and, if not installed and used in accordance with the instructions, may

cause harmful interference to radio communications. This equipment

has been tested and found to comply with the limits for a Class A

computing device, pursuant to Part 15 of the FCC rules. These limits

are designed to provide reasonable protection against harmful

interference when operated in a commercial environment. Operation

of this equipment in a residential area is likely to cause interference, in

which case the user, at his own expense, will be required to take

whatever measures are necessary to correct the interference.

CE Declaration of Conformity

This equipment complies with the requirements relating to

electromagnetic compatibility, EN55022 class A for ITE and

EN50082-1, the essential protection requirement of Council Directive

89/336/EEC on the approximation of the laws of the Member States

relating to electromagnetic compatibility.

Table of Contents

Chapter 1. INTRODUCTION.................................1

10Mbps Ethernet hub................................................. 1

Product Features............................................. 1

Product Specifications.....................................2

Chapter 2. INSTALLATION..................................5

Twisted Pair cable..................................................5

Interconnection Guidelines....................................6

Establishing a Twisted Pair Network.....................8

Cascading the hub by Uplink port.........................9

CHAPTER 1

INTRODUCTION

Congratulations on your purchase of a Ethernet hub. Your hub was

designed and manufactured to give you years of trouble-free and

reliable service.

The hub is designed for plug-and-play installation and easy

management. The hub provides an Uplink connection for your

network expansion via a RJ-45 connector, making it easy to link two

hubs together.

The hub features Link/Activity LEDs to show the connection and

activity status of each port. Power and Collision indicators show the

status of the hub as a whole.

Product Features

lCompliance to IEEE 802.3 10Base-T/2 standard.

lAutomatic partitioning function of each port to isolate network

failure.

lLED indicators for each twisted pair port for network link and

activity reporting diagnosis.

lCompact design in mini size.

lThe hub’s housing made by Aluminum material provides the

excellent performance for heat dispatching and EMI.

Product Specifications

Media EHU-0500T EHU-0501TB EHU-0900TB

10Base-T/STP 5 48

10Base-2/BNC 11

Uplink port 1 11

LED indicators

Power/PWR ---

Collision/COL ---

BNC Partition --

LINK ---

Activity/ACT ---

Utilization UTIL% -

Power Supply

Keyboard pwr cable 5V 5V

Power Adapter 7.5V/1A 7.5V/1A 5V/2A

Safety Regulation

CE µµµ

FCC class A µµµ

Dimension (mm) 141x102x30 128x102x30 190x102x30

Housing Aluminum Aluminum Aluminum

Packing list

Hub EHU-0500T EHU-0500TB EHU-0900TB

Power Supply üüü

Power Cord

Manual üüü

50-ohm Terminator üü

T-connector üü

Product Specifications

Media 17 port

10Base-T/STP 16

10Base-2/BNC 1

Uplink port 1

LED indicators

Power/PWR -

Collision/COL -

BNC Partition -

LINK -

Activity/ACT -

Power Supply

Power Adapter 5V/2A

Safety Regulation

CE µ

FCC class A µ

Dimension (mm) 310x102x30

Housing Aluminum

Packing list

Hub 17 port

Power Supply ü

Power Cord

Manual ü

50-ohm Terminator ü

T-connector ü

The Rear and Front Panel of PALM Hub

Uplink TP5 TP4 TP3 TP2 TP1 DC IN

(The Rear Panel of EHU-0500T)

PWR COL TP1 2 3 4 5

LINK?ACT-

(The Front Panel of EHU-0500T)

BNC TP4 TP3 TP2 TP1 Uplink DC IN

(The Rear Panel of EHU-0501TB)

PWR COL BNC TP1 2 3 4 UTLI%

1 8 16 32 64

LINK?ACT-

(The Front Panel of EHU-0501TB)

BNC Uplink TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP1 DC

(The Rear Panel of EHU-0900TB)

PWR COL BNC TP1 2 3 4 5 6 7 8

LINK?ACT-

(The Front Panel of EHU-0900TB)

The Rear and Front Panel of PALM Hub

BNC Uplink TP16 TP15 TP14 TP13 TP12 TP11 TP10 TP9 TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP 1 DC IN

(The Rear Panel of EHU-1700TB)

PWR COL BNC TP1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

LINK?ACT-

(The Front Panel of EHU-1700TB)

LED indicators:

Power/PWR: Lit whenever the hub is connected to a

power source and is turned on.

Collision/COL: Lit whenever a packet collision occurs on

the Ethernet network. A collision means that

two or more stations have tried to transmit the

same time. Frequent collisions may mean that

network segment is congested.

Link/TP: Lit when there is a good connection between

the workstation and the port that is connected

to.

Activity/ACT: Blinked whenever a packet is transmitted or

received.

BNC: Lit when the BNC port didn’t connect the

50-ohm Terminator or Coaxial cable.

Blinks when the data is transmitted.

Rear Panel indicators:

Uplink TP: This is a module, you may use either the

Uplink for cascade another hub or TP port for

normal workstation connection.

CHAPTER 2

INSTALLATION

TWISTED PAIR CABLE

You may use Cat. 3 or better cables for your 10Base-T Ethernet

environment. It is important that the pairings of wires in the modular

plug match the pairs in the modular jack as well as the horizontal and

backbone wiring. If they don’t, the data being transmitted may be

paired with incompatible signals.

Pair 1 (Blue)

Cat. 5. Cable Pair 2 (Green)

Pair 3 (Orange)

Pair 4 (Brown)

The pin assignment on modular jack:

+ 1 (Orange)

2 Pair 3

+ 3

4 (Blue) (Green)

5 Pair 1 Pair 2

7 (Brown)

8 Pair 4

INTERCONNECTION GUIDELINES

The Ethernet Hub makes your various types of Ethernet networks

interconnection comes true. Using the hub, you can efficiently build

up and flexibly interconnect twisted-pair Ethernet networks.

Furthermore, having great expansion capability, the hub keeps your

existing coaxial Ethernet system still valuable, capable of connecting

different Ethernet cabling systems together with wide range of

configuration.

No matter what kind of medium and configuration you choose to

build up your network, certain guidelines must be observed.

1. The Distance Guidelines of Twisted-pair Wire, Coaxial Cable.

Medium Connection Max. Distance

Twisted Pair hub to station 100 meters

Twisted Pair hub to hub 100 meters

Twisted Pair hut to AUI adapter 100 meters

Thin cable hub to hub 185 meters

2. Guidelines for the maximum Ethernet Network Length

lA maximum of three to four Ethernet hubs or repeaters may be

attached within the path between any two stations, according to

your network environment.

lOnce three coaxial segments are used, the remainder must be a

10Base-T link segment.

Referring to the following examples will improve your understanding:

I. Network Interconnection via Twisted-Pair Wire:

100M

Note: The maximum Ethernet network length via twisted-pair is

500 meters.

II. Network Interconnection via Thin cable:

185M(Thin cable) 185M 185M

185M

100M (TP cable) 100M

Note: The maximum Ethernet network length via thin cable is 755

meters. (Thin cable = RG-58 or Coaxial cable)

Establish a Basic Twisted-Pair Network

1. Placing the hub

The hub should be located in a secure place accessible only to the

network administrator. It should be close to a power source, since it

requires power in order to operate.

When a suitable location is identified, connect one end of the power

to the hub and plug the other end into the power outlet.

After plugging the hub into a power outlet, you should check the

Power LED. If the power LED lights, then the hub is receiving power

and you can go on to the next step.

2. Connecting to the network

Once you have found an appropriate place for your hub, you can

connect network stations to it using 10Baes-T twisted pair, 10Base2

thin coaxial.

For twisted pair connections, you should use Category 3 or better

twisted pair cable. Your cable should be installed by qualified

professional to insure that every part of your installation is capable of

carrying 10Base-T signals.

3. Connecting 10Base-T Twisted Pair Cabling

To connect station using twisted pair cabling, simply plug the cable’s

RJ-45 connector into an available RJ-45 connector on the hub.

4. Connecting 10Base-2 Thin Coaxial Cabling

To connect the 10Base-2 network, attach the cable’s BNC T

connector to the BNC port on the hub.

Note: If the BNC port on the hub is not used, a 50 ohm

terminator must be attached on it.

Cascading the hubs by Uplink port

When connecting two hubs, one hub is used UpLink port and the

other end is on the normal port of hub. The UpLink port connect

directly to a normal Twisted Pair cable, and the crossover cable is not

needed.

Up to 7 PCs

Uplink TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP1 DC IN

Up to 6 PCs

Uplink TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP1 DC IN

Up to 6 pcs

Uplink TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP1 DC IN

Up to 4 PCs

Up to 7 pcs

Uplink TP8 TP7 TP6 TP5 TP4 TP3 TP2 TP1 DC IN

(Diagram illustrates of 8 port 10Base-T hub cascading)

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