Allied Telesis AT-FH705E User manual

AT-FH705E
Dual Speed Hub
Installation Guide
PN 613-10803-00 Rev. A

Copyright ”1999 Allied Telesyn International, Corp.
960 Stewart Drive Suite B, Sunnyvale CA 94086, USA
All rights reserved. No part of this publication may be reproduced without prior written permission
from Allied Telesyn International, Corp.
Ethernet is a registered trademark of Xerox Corporation. All other product names, company names,
logos or other designations mentioned herein are trademarks or registered trademarks of their
respective owners.
Allied Telesyn International, Corp. reserves the right to make changes in specifications andother
information contained in this document without prior written notice. The information provided
herein is subject to change without notice. In no event shall Allied Telesyn International, Corp. be
liable for any incidental, special, indirect, or consequential damages whatsoever, including but not
limited to lost profits, arising out of or related to this manual or the information contained herein,
even if Allied Telesyn International, Corp. has been advised of, known, or should have known, the
possibility of such damages.

iii
FCC Statement
STANDARDS: This product meets the following standards.
U.S. Federal Communications Commission
DECLARATION OF CONFORMITY
Manufacture Name: Allied Telesyn International, Corp.
Manufacture Address: 960 Stewart Drive, Suite B
Sunnyvale, CA 94086 USA
Manufacture Telephone: [phone]
Declares that the product: Hub
Model Number: AT-FH705E
This product complies with FCC Part 15B, Class B Limits:
This device complies with part 15 of the FCC Rules. Operation is subject to thefollowing two conditions:
(1) This device must not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
RADIATED ENERGY
Note: This equipment has been tested and found to comply with the limits for a Class B digital device
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with instructions, may cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and
on. The user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications not expressly approved by the manufacturer or registrant of this equipment
can void your authority to operate this equipment under Federal Communications Commission rules.
Industry Canada
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

Safety Warnings
iv
Safety Warnings
STANDARDS: This product meets the following standards
RFI Emmission EN55022 Class B
Immunity EN50082-1, 1997
SAFETY
Power to the hub must be sourced only from the adapter.
USA/CANADA
Use a UL Listed/CSA Certified AC adapter of DC 5 V, 2.5 A.
EUROPE - EU
Use TÜV licensed AC adapter of DC 5 V, 2.5 A.
UK
Use a UK Safety Approved AC adapter of DC 5 V, minimum 2.5 A.
LIGHTNING DANGER
DANGER: DO NOT WORK on equipment or CABLES during periods of LIGHTNING ACTIVITY.
Do not connect a telephone line into the singnal connector.
OPERATING TEMPERATURE
This product is designed for a maximum ambient temperature of 40 degrees C.
ALL COUNTRIES: Install product in accordance with local and National Electrical Codes.
NORMEN: Dieses Produkt erfüllt die Anforderungen der nachfolgenden Normen.
Hochfrequenzstörung EN55022 Klasse B
Störsicherheit EN50082-1, 1997
SICHERHEIT
Der Buchse darf nur aus dem Adapter Strom zugeführt werden.
EUROPE - EU
Gebrauchen Sie einen von TÜV zugelassenen Wechselstromadapter für Gleichstrom 5 V, 2.5 A.
GEFAHR DURCH BLITZSCHLAG
GEFAHR: Keine Arbeiten am Gerät oder an den Kabeln während eines Gewitters ausführen
Verbinden Sie nicht das Telefonkabel mit dem Signalverbindungsstecker
BETRIEBSTEMPERATUR
Dieses Produkt wurde fürden Betrieb in einerUmgebungstemperaturvon nicht mehr als 40° C entworfen.
ALLE LÄNDER: Installation muß örtlichen und nationalen elektrischen Vorschriften entsprechen.
NORMES: ce produit est conforme aux normes de suivantes :
Emission d'interférences radioélectriques EN55022 Classe B
Immunité EN50082 - 1, 1997
SÉCURITÉ
L'alimentation du concentrateur doit être uniquement fournie par l'adaptateur.
EUROPE - EU
Utiliser un adaptateur secteur conforme TÜV de 5 V, 2.5 A en courant continu.
DANGER DE FOUDRE
DANGER: NE PAS MANIER le matériel ou les CÂBLES lors d'activité orageuse.
Ne pas connecter une ligne téléphonique au connecteur de signaux.
TEMPÉRATURE DE FONCTIONNEMENT
Ce matériel est capable de tolérer une température ambiante maximum de 40 degrés Celsius.
POUR TOUS PAYS: Installer le matériel conformément aux normes électriques nationales et locales.

Y
Table of Contents
FCC Statement ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïLLL
Safety Warnings ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï LY
Chapter 1
Product Description ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ì
Package Contents....................................................................................................................2
Front Panel..............................................................................................................................2
Rear Panel................................................................................................................................2
Chapter 2
Installation ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ê
Installing the Mini Hub..........................................................................................................3
Application..............................................................................................................................4
Chapter 3
Troubleshooting ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï è
Connectivity Testing...............................................................................................................5
Problem Solving......................................................................................................................6
Appendix A
Technical Specifications ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ä
Physical Characteristics...........................................................................................................9
Agency Compliance ..............................................................................................................10
100Base-TX Cable.................................................................................................................11
100Base-TX Connector Pinouts...........................................................................................12
Appendix B
Technical Support Fax Order ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ìê
Incident Summary.................................................................................................................13
Appendix C
AT-FH705E Switch Installation Feedback ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ìè
Appendix D
Where To Find Us ïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïïï ìæ

1
Chapter 1
Product Description
The AT-FH705E MiniHubis an 5-port 10/100 Mbps dualspeedhubthat offers a
cost-effectivesolutiontotoday’sgrowingneedofnetworkspeedintegration.With
five10/100Mbpsplug-and-playdualspeedportsequippedinitscompactbody,it
is possible toachieve the coexistence of10 Mbps and 100 Mbpsdevices in a single
network now and step to 100 Mbps network in the future. The internal switching
function provides networksegmentation, thereby offering ahigh level of network
flexibility and efficiency. Other key features include:
‰Compliant with IEEE802.3 and 802.3u Class I and II repeater
specifications
‰10Base-T/100Base-TX auto-negotiate for speed detection
1RW
All hubs operate in half-duplex mode only.
‰Supports up to 1792 MAC Address entries
‰Mini compact size with external power adapter
‰One Uplink switch to support uplink function (Port 1)
Figure 1 AT-FH705E Mini Hub Front and Rear Panels
4X 3X 2X 1
5V 2.5A
5X
Node Uplink
10BASE-T/100BASE-TX 5 PORT ETHERNET HUB
COLLISION
100M10M POWER
1 2 345
5
LINK/ACTIVITY
100M

Product Description
2
Package Contents
The package should include the following items:
‰One 5-port Dual Speed Mini Hub
‰One Power Adapter
‰This Installation Guide
If any item is missing, please contact your dealer immediately.
Front Panel
The front panel contains the hub LED indicators.
The LEDs help monitor the hub’s operating status and overall network
performance. See Table 1 for further information concerning the LEDs.
Rear Panel
Therear panelincludesthepowersocket,which accepts5 Vdc 2.5 Apowerinput,
the uplink slide switch (for Port 1), and 5 RJ45 UTP/STP ports.
Table 1 LEDs
LED Color Description
Power Green ON indicates that the unit is receiving power
Collision for 10/100M Yellow ON indicates data collisions
Link/Activity for 10/
100M Green Flashing
Green
ON indicates that a link is established
FLASHING indicates that the unit is receiving
data
100M (Speed) Green ON indicates 100 Mbps speed
OFF indicates 10 Mbps speed

3
Chapter 2
Installation
Installing the Mini Hub
1. Place the Hub on a smooth and horizontal surface.
2. Establish network connection by plugging one end of the Category 5
UTP/STP cable RJ45 connector into the hub port, the other end to the
Ethernet/Fast Ethernet adapter installed in the workstation computers.
(Use Category 5 or above for 100 Mbps; use Category 3, 4, or 5 or above
for 10 Mbps.)
3. Connect each device by repeating Step 2.
4. Make sure that each device is connected properly. Turn on the power by
attaching the power cable to the hub and plug in the power outlet.
Caution
Be sure to use Category 5 or above UTP cable in connecting 100 Mbps
network devices. The cable length should not exceed 100 m (328 ft).
Uplink Connection
1. Set the Uplink switch to the Uplink position.
2. AttachoneendoftheRJ45cableconnectortotheUplinkport(port1)of
the first Hub. (Use Category 5 or above for100 Mbps; use Category 3, 4,
or 5 or above or 10 Mbps.)
3. Plug the other end into any RJ45 port of the second Hub.
Caution
Crossover cable is not necessary in establishing uplink connection
through the uplink port.

Installation
4
Caution
TheUplink cable lengthcannotexceed 5m(328ft)when using100Mbps.
Application
The hub can be deployed where 10 Mbps and 100 Mbps network devices coexist
and need to be integrated. Figure 2 illustrates a sample application.
Figure 2 AT-FH705E Mini Hubs Connected to Workstation
10 Mbps
Workstation
10 Mbps
Workstation
100 Mbps
Workstation 100 Mbps
Workstation 100 Mbps
Workstation
100 m (328 ft)
AT-FH705E
100 Mbps
Workstation
100 Mbps
Workstation
100 Mbps
Workstation
100 m (328 ft)
Set to Uplink
10BASE-T/100BASE-TX
RS-232
TERMINALPORT
UTILIZATION
%
PORTSTATUS
100M
10M
10BASE-T/100BASE-TX
DUALSPEED FAST ETHERNET HUB
WITHINTEGRATED SWITCH
100 m (328 ft)
10/100Base-TX Switch
100 m (328 ft)
10BASE-T/ 100BASE-TX 5 PORT ETHERNET HUB
COLLISION
100M10M POWER
12 345
5
LINK/ACTIVITY
100M
10BASE-T/ 100BASE-TX 5 PORT ETHERNET HUB
COLLISION
100M10M POWER
12 345
5
LINK/ACTIVITY
100M
Mini Hubs

5
Chapter 3
Troubleshooting
This chapter describes the procedures to test and troubleshoot the hub.
Connectivity Testing
In the following procedure, you will test each port for a valid connection and to
confirm the correct operation of the network.
1. Start with Ports 1 and 2. Connect these two ports of a single hub to two
nodes or workstations and turn on the hub’s power supply.
2. Make sure the Link/Activity and other LEDs of both hub portsare lit.
3. AfterconfirmingthatPort1andPort2areoperational,reconnectoneof
the nodes/workstations to another port, then repeat this
communications testwith the hub’s remaining ports. Continue to verify
the connection in each port by checking the Link/Activity and other
activity LEDs.
Note
Whentestingthe100MbpsportswithPort1connectedtoaworkstation,
set the button WRýWKHý1RGH position.
If the port is auto-negotiable, wait approximately 1-3 seconds for the process to
complete after power-on or after the cables are reconnected.
4. When cascading hubs using port 1, set the uplink slide switch to the
8SOLQNýposition.

Troubleshooting
6
Problem Solving
Is the unit receiving power?
Check the Power LED on the front of the hub. This green LED should be lit.
If the Power LED is not on:
1. Check the back of the unit. Make sure the power cord is attached
securely.
2. Check the AC power adapter. Make sure the power adapter is plugged
into a functioning wall outlet and that it is properly inserted into the
hub’s power connector on the back of the unit.
Is the Link/Activity LED lit?
The Link LED on the front of the hub lights when a proper connection between
the corresponding 10/100Base-TX port and the equipment connected to it is
established. If this LED is not lit, check for the problems listed below and make
corrections as necessary.
Problem 1:
The cable has been cut, damaged, or it is the wrong type of cable.
Solution 1:
‰Try making the connection with a different cable. Be sure you are using
an undamaged cable of the correct type.
Problem 2:
Connected equipment is not turned on or not operating properly.
Solution 2:
‰Checkthe connected equipment(computer,another hub, etc.)andturn
on the power.

AT-FH705E Installation Guide
7
Problem 3:
Port 1 does not operate properly.
Solution 3:
The Uplink slide switch may be in the wrong position. Check the following:
‰Whenusingthecascadeportofthe hub(Port 1),youshould setthe slide
switch to the 8SOLQNýposition.
‰When cascading two hubs, the unit using the cascade port should have
the button set to the 8SOLQN position, while theother unit shouldhaveits
switch set WRý1RGH.
‰Whenport1isusedtoconnecttoaworkstationorotherequipment,you
should set the slide switch to theý1RGH position.
Problem 4:
There is data loss between the hub and one of the attached network nodes.
Solution 4:
‰Make sure that the cable length between the hub and the connected
network device is no greater than 100 m (328 ft).
‰Make sure you are using Category 5 cable.

9
Appendix A
Technical Specifications
Physical Characteristics
10/100Base-TX Port 5 auto-negotiate ports
Uplink Port Port 1
Cabling UTP/STP Category 5 for 100 Mbps;
UTPCategory3,4,or5for10MbpsMaximum
of 100 m (328 ft) between the hub and a
network node
Operating Temperature 0 ~ 40oC (32~104oF)
Operating Humidity 5 ~ 95%
Storage Temperature 0 ~ 70oC (32~158oF)
Storage Humidity 5 ~ 95%
Chassis Dimensions 5.2 in x 4.9 in x 1.2 in
(131 mm x 123 mm 30 mm)
Weight 1.25 lb (0.57 Kg)
Input Voltage 100-240 Vac, 50/60 Hz
Output Voltage 5 Vdc, 2.5 A

Technical Specifications
10
Agency Compliance
Standard IEEE 802.3 (10Base-T) and IEEE 802.3u
(100Base-TX) Class I and II Repeater
EMI/RFI FCC Part 15 Class B, EN55022 Class B
Immunity EN 50082-1
Safety Complies with safety standards UL 1950, cUL,
EN60950
CE Compliant
UTP (RJ45) Connector
Figure 3 shows an RJ45 connector. For a 100Base-TX link between hubs, —any
two Medium Attachment Units (MAUs)—you need a crossover cable. For a
connection to a Network Interface Controller (NIC), the cable is wired straight
through.
Figure 3 RJ45 Connector
Pin 1 Pin 8

AT-FH705E Installation Guide
11
Cabling Specifications
Table 2 provides an overview of IEEE 802.3 and 802.3u cabling specifications for
10Base-T, and 100Base-TX network configurations using twisted-pair cable.
100Base-TX Cable
There are various grades of voice-quality and data-quality cables available. These
can appear to be similar externally, although their high-speed data transmission
characteristics are radically different.
The identification problem is made worse by some suppliers selling voice-quality
cables as data-quality cables.
If voice-quality cables are used in a 100Base-TX network system, data movement
may be slow, collision-prone or non-existent. In addition, interface LEDs will
usually indicate a valid link in such cases.
Category 5 cabling is required for 100Base-TX connections. Using any other
category for a 100Base-TX connection may result in high error rates, or may not
have the capacity to transmit data.
Table 2 IEEE 802.3 and 802.3u Cabling Specifications
10Base-T 100Base-TX
Media Unshielded/Shielded Twisted
Pair Category 3, 4, or 5 Unshielded/Shielded Twisted Pair Category 5 only
Maximum Seg-
ment Length 100 m (328 ft) 100 m (328 ft)
Topology Star, Tree Star, Tree
External Devices Network Adapter Card, Repeater Network Adapter Card,
Repeater

Technical Specifications
12
100Base-TX Connector Pinouts
Straight-through Cable Crossover Cable
4#7;.7;.#4
5;0#99#5;0
7;0#5
6#5;.5;.#6
5#7;0
4#7;.7;.#4
5;0#99#5;0
7;0#5
6#5;.5;.#6
5#7;0

13
Appendix B
Technical Support Fax Order
Name___________________________________________________________________
Company ________________________________________________________________
Address _________________________________________________________________
City ________________________State/Province ________________________________
Zip/Postal Code ___________________ Country_________________________________
Phone _______________________________Fax_________________________________
Incident Summary
Model number of Allied Telesyn product I am using______________________________
Network software products I am using_________________________________________
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Brief summary of problem __________________________________________________
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
Conditions (List the steps that led up to the problem.) ____________________________
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
Detailed description (Use separate sheet, if necessary)___________________________
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
Whencompleted, fax this sheetto theappropriate Allied Telesyn office. Fax numbers can
be found on page 17.