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SOHOConnect Series

iv Table of Con-
tents

4

M

AKING

C

ONNECTIONS

...........................................9

Connectivity Rules.............................................................. 9
Hub-to-end-node Connections.......................................... 10
Uplink Connection............................................................ 12

5

C

ABLES AND

C

ONNECTORS

...................................15

100BASE-TX Fast Ethernet Cables and Connectors...... 15
Crossover Cables............................................................... 16

6

S

PECIFICATIONS

...................................................17

General.............................................................................. 17
LED Indicators................................................................. 18
Environmental and Physical ........................................... 18

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Содержание SOHOConnect DHD-801

Страница 1: ...DHD 801 1601 User s Guide Table of Contents i SOHOConnect Series DHD 801 DHD 1601 Dual Speed Hub ...

Страница 2: ... equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference ...

Страница 3: ...he User s Guide v 1 INTRODUCTION 1 Product Description 1 Product Features 2 2 UNPACKING AND SETUP 3 Unpacking 3 Identifying External Components 3 Front Panel 4 Rear Panel 5 Installing the Hub 5 Installation 5 Connecting the Power Adapter 6 3 UNDERSTANDING INDICATORS 7 Hub State Indicators 7 Port State Indicators 8 ...

Страница 4: ...CTIONS 9 Connectivity Rules 9 Hub to end node Connections 10 Uplink Connection 12 5 CABLES AND CONNECTORS 15 100BASE TX Fast Ethernet Cables and Connectors 15 Crossover Cables 16 6 SPECIFICATIONS 17 General 17 LED Indicators 18 Environmental and Physical 18 ...

Страница 5: ... Ethernet networks and introduces your hub s features Chapter 2 Unpacking and Setup Helps you get started in setting up the hub Chapter 3 Understanding Indicators Describes all LED indicators on the hub s front panel Understanding these indicators is essential to effectively using the hub Chapter 4 Making Connections Provides information on connecting to the hub s twisted pair ports and uplinking ...

Страница 6: ...SOHOConnect Series About this Guide vi This page intentionally left blank ...

Страница 7: ...connections All of the twisted pair ports support NWay auto negotiation allowing the hub to automatically detect the speed of a network connection This means you can connect all of your Ethernet and Fast Ethernet hosts to your hub without any rewiring required when a host is upgraded from 10 Mbps to 100 Mbps This Hub with built in switch function allows communication between network end nodes oper...

Страница 8: ...oth shielded twisted pair and Category 5 unshielded twisted pair cables Fast Ethernet connections support a maximum distance of 100 meters from end station to hub and a total network diameter of 205 meters Eight Sixteen 10 100Mbps NWay ports per hub for connecting stations to the network Hubs with built in switch function automatically transfer packets between 10Mbps Ethernet and 100Mbps Fast Ethe...

Страница 9: ... contents The carton should contain the following items One 10 100Mbps Dual speed Hub One AC power adapter suitable for your area s electrical power connections Accessory pack This User s Guide If any item is damaged or missing report the problem immediately to your network equipment dealer Identifying External Compo nents This section identifies all the major external components of the hub Both t...

Страница 10: ...acks to connect stations to the hub These are numbered jacks or called MDI X Medium Dependent Interface Cross wired jacks which mean you can use ordinary straight through twisted pair cables to connect user machines and servers to the hub through them If you need to connect another device with an MDI X jack such as another hub or an Ethernet switch you should use a crossover cable or make the conn...

Страница 11: ...DC Power Jack For the AC power adapter FAN DHD 1601 For cooling the device and keep the hub in a well working temperature Installing the Hub Installation The site where you install the hub may greatly affect its performance When installing consider the following pointers Install the hub in a fairly cool and dry place See Appendix B Specifications for the acceptable temperature and humidity operati...

Страница 12: ...hub on a sturdy level surface that can support its weight When installing the hub on a level surface attach the rubber feet to the bottom of each device The rubber feet cushion the hub and protect the hub case from scratches Connecting the Power Adapter Power is supplied to the Dual speed Hub through an AC power adapter The accepted DC power is 12V 1 2A for 8 port model and DC 5V 5A for 16 port mo...

Страница 13: ...nel Hub State Indicators Power Indicator PWR This indicator lights green when the hub is receiving power otherwise it is off 100M Collision COL 100M This indicator indicates data collisions on the respective 100Mbps Fast Ethernet segments of the hub If several hubs are linked together all of them should detect and indicate the same collision since collisions span the entire network segment Wheneve...

Страница 14: ...s report the port is working on 10Mbps mode or 100Mbps mode and indicator for link or activity status The following describes each indicator and the meaning of each condition Link Active This indicator green when the port is connected to a either Ethernet or Fast Ethernet station If the station to which the hub is connected is powered off or if there is a problem with the link the LED will remain ...

Страница 15: ...be Category 3 or better Between any two end stations in a collision domain there may be up to five cable segments and four intermediate repeaters hubs or other repeaters And be attention you have to using 10Mbps Ethernet repeaters to connect in your network segments to avoid the limitation of Fast Ethernet Because if you haven t use pure 10Mbps Ethernet repeaters in this network segments then it w...

Страница 16: ...ice such as an end station computer server or Fast Ethernet switch is 100 meters All cabling should be certified as Category 5 or higher UTP or equivalent for example Type 1 STP with RJ 45 plugs The maximum diameter of a collision domain is 205 meters using two Class II hubs uplinked together Between any two end stations in a collision domain there may be up to three cable segments and two Class I...

Страница 17: ...k devices to the twisted pair ports using straight through twisted pair cables Do not use crossover cables The following figure illustrates the pin assignments for a straight through cable When connecting an end station computer or a server the system being connected should have an Ethernet or Fast Ethernet network interface card with a twisted pair port The following figure shows typical connecti...

Страница 18: ... 1 jacks are wired to the same circuitry they are just wired to it in different ways so you must never use the port 1 and the Uplink jack at the same time When you uplink two hubs together the maximum distance between any two end nodes in a collision domain is 205 meters If both hubs have maximum length 100 meter connections to end nodes even if there is only one such connection on each hub the hu...

Страница 19: ... Hub Uplink Straight through Normal Network end node Straight through Non Uplink Straight through Switch or Hub Uplink Crossover X Uplink Network end node Crossover X A crossover cable is a twisted pair cable in which the wires have been crossed The figure below shows the pin assignments for an Ethernet or Fast Ethernet crossover cable Uplink 100 meters ...

Страница 20: ...SOHOConnect Series Making Connections 14 This page intentionally left blank ...

Страница 21: ... data cable with 0 4 to 0 6 mm 22 to 26 AWG wires in two or four twisted pairs only two pairs that is four wires are used for 100BASE TX Maximum segment length 100 meters Maximum network diameter 205 meters Connectors RJ 45 Straight Twisted Pair Cable Pinouts Contact MDI X Signal MDI II Signal 1 RD receive TD transmit 2 RD receive TD transmit 3 TD transmit RD receive 4 5 Not used Not used 6 TD tra...

Страница 22: ... crossover cable two pairs of wires are switched at one end Carry out the following steps to create a crossover twisted pair cable 1 Leave one end of the cable as is with the wiring on the RJ 45 connector unchanged The wiring needs to be modified at one end only 2 At the other end of the cable connect wires 1 and 2 to contacts 3 and 6 respectively Likewise connect wires 3 and 6 to contacts 1 and 2...

Страница 23: ...ed pair transceiver Topology Star Protocol CSMA CD Network Data Transfer Rate Fast Ethernet 100Mbps Ethernet 10Mbps Number of Ports 8 16 all dual speed 10 100 Mbps Network Media Ethernet Category 3 or better UTP cable maximum length 100 meters Fast Ethernet Category 5 UTP STP 100 ohm twisted pair maximum length 100 meters for hub to station links Cat 5 UTP 100 ohm UTP STP for hub to hub linking ...

Страница 24: ...nnection Active status Environmental and Physical Power Adapter AC external power adapter Output 12 V DC 1 2A DHD 801 5V DC 5 A DHD 1601 Power Consumption 12 25 Watt max Dimensions W D H 220mm 130mm 27mm DHD 801 220mm 130mm 44mm DHD 1601 Operating Temperature 0 to 50 C Storage Temperature 20 to 70 C Humidity 5 to 95 non condensing Emissions FCC Class A CE Mark ...

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