Start Here
Congratulations on your purchase of the NETGEAR™ Model EN516 or Model EN524 Ethernet
hub. These hubs deliver sta ndards-base d, plug-and-play networking solutions for s ma ll busi nesses,
home offices, and low-densi ty workgroups of large r companies
.
Features
The Model EN516 and Model EN524 hubs have the following features:
• Sixteen (on the Model EN516 hub) and twenty-four (on the Model EN524 hub) vista
10BASE-T network ports (RJ- 45) that provide 1 0 Mbps networking using simple unshielded
twisted pair (UTP) wiring (The vista network ports provide built-in LED indicator s for at-aglance status checks.)
• AUI or coaxial BNC back bone support for connecting to an existing Ethernet s egment or
extern al transceiver, or for netw ork expansi on by connecting multipl e hubs together using
twisted pair or coaxial cabling
• Uplink port for connecting to other hubs using simple straight-through cables
• Built-in 100 to 240 V AC swi tching power supply, eliminating th e need for bulky wall
transformers
• Clear front-panel light-emitting diode (LED) indicators, providing the individual ports and
overall hub status
• Plug-and-play installation with no software to configure
• Complete hub functions including pack et retimin g, collision detection, preamble
regener ation, and fr agm ent extension
• Automatic partitioning and reconnection of a port that has excessive col lisions or is jabber ing
• Automatic polarity dete ction for recognizing and co rrecting incorre ct polari ty on the receive
pair
• Compact design, enabling easy tabletop or rack-mounting installation
• Limited five-year warranty on the unit and one-year warranty on the power supply
Model EN516/EN524 Ethernet Hub Installation Guide
Package Contents
PORT
16
10/100Mbps
Ethernet Hub
Power BNCRxAUI
Rx
CollisionPartitionPartition
Rubber
footpads
Rack mount kit
Model EN516 hub Model EN524 hub
MODEL
1
Link/RxPartition Link/RxPartition
9
EN516
8
Normal/Uplink
16
or
MODEL
PORT
24
10/100Mbps
Ethernet Hub
Power BNCRxAUI
CollisionPartitionPartition
1
Rx
13
5
Link/Rx
Partition
Link/RxPartition Link/RxPartition
17
EN524
12
Normal/Uplink
24
BNC T-connector
BNC 50 Ω
terminator
Power
cord
Installation guide,
Warranty & Owner
Registration Card
8668FA
Verif y that your package contains the following:
• Model EN516 hub or Model EN524 hub
• Rack mount ki t t hat i ncl ude s eigh t s mall screws, fou r l arge sc re ws , fo ur sp ace rs , and t wo r ac k
mount brac ke t s
• Four rubber footpads
• BNC T-connector and BNC 50 Ω terminator
• Installat ion guide
• Warranty & Owner Re gistration Card
•Power cord
Model EN516/EN524 Ethernet Hub Installation Guide
Product Illustration
The instructions provided in this guide are for installing and using the Model EN516 hub and the
Model EN524 hub.
Front Panel of the Model EN516 hub
Power LED BNC Rx LED
AUI Rx LED
PORT
16
10/100Mbps
Ethernet Hub
Power BNCRxAUI
CollisionPartitionPartition
Rx
Partition LED (for AUI)
Partition LED (for BNC)
Collision LED
Power LED BNC Rx LED
AUI Rx LED
PORT
24
10/100Mbps
Ethernet Hub
Power BNCRxAUI
CollisionPartitionPartition
1
Partition
Link/Rx
Rx
13
Partition LED (for AUI)
Partition LED (for BNC)
Collision LED
Front Panel of the Model EN524 hub
1
Link/Rx Partition Link/Rx Partition
9
vista 10BASE-T
network ports
5
Link/Rx Partition Link/Rx Partition
17
vista 10BASE-T
network ports
MODEL
EN516
8
Normal/Uplink
16
Normal/
Uplink push
button
MODEL
EN524
12
Normal/Uplink
24
Normal/
Uplink push
button
8669FA
Vista 10BASE-T Network Ports with Built-in LEDs
The front panel of the Model EN516 hub has 16 RJ-45 10BASE-T ports, and the Model EN524
hub has 24 RJ-45 10BASE-T ports. Two LEDs—the Link/Rx LED and the Partition LED—are
built into each 10BASE-T port on bot h m odels.
Link/Rx
LED
Partition
LED
8670EA
Model EN516/EN524 Ethernet Hub Installation Guide
LEDs
The table below describes the activity o f the LEDs.
Label Color Activity Description
Power Green On Power is supplied to the hub.
Collision Amber Blinking Data collision is occurring on the network. Note that
occasional co llisions are normal.
BNC Rx Green Blinking There is incoming data on the BNC port.
Partition
(for BNC)
AUI Rx Green Blinking There is incoming data on the AUI port.
Partition
(for AUI)
Link/Rx
(located on the top left
corner of each vista
10BASE-T por t)
Partition
(located on the top
right corn er of each
vista 10BASE-T por t)
Amber On The BNC port is partitioned because of excessive
collisions or the BNC port is not connected.
Amber On The AUI port is partitioned because of excessiv e
collisions or because the signal quality error (SQE) test
function is not disabled on the t ransceiver.
Green On
Blinking
Amber On The port is partitioned because of excessive collisions.
The link between this port and the connected de vice is
good.
There is incoming data on the port.
Normal/Uplink Push Button
The Normal/Uplink push button allows you to select Normal (MDI-X) for direct PC connection.
The push button also allows you to select Uplink (MDI) wiring for connection to a hub or a switc h
for port 16 on the Model EN516 hub and for port 24 on the Model EN524 hub. This uplink
configuration eliminates the need to use a crossover cable. Ports 1 through 15 on the Model
EN516 hub and ports 1 through 23 on the Model EN524 hub are permanently configured for
normal wiri ng for connection to a PC.
Rear Panel
The rear panel of each hub has two ports: the AUI port and the BNC port. You can use the AUI
port with the appropriate transceiver to connect the hub to a backbone network using thin coaxial
cable, thick coaxial cable, fiber optic cable, or 10BASE-T wiring. You can use the BNCport to
connect to a backbone network or other PCs using thin coaxial cable. The rear panel also includes
an AC power receptacle. The hub accepts between 100 and 240 V AC, 50/60 Hz.
AUI port
BNC port Power receptacle
AUI
BNC
100-240 VAC 50-60 Hz 0.2A
8143FA
Model EN516/EN524 Ethernet Hub Installation Guide
Installation Procedures
Prepare the Site
Before you begin installing your hub, prepare the installation site. Make sure your operating
envi ronment meet s the operating envi ronment requirements of the equipment.
Characterist ic Requirement
Temperature Ambient temperature between 0° and 40° C (32° and 104° F).
Opera ting humidity Maximum relative humidity of 90%, noncondensing.
Ventilation Minim um 2 inc he s ( 5. 08 cm) on all si de s for co oling.
Opera ting condition s At least 6 feet (1.83 m) to nearest source of electromagnetic noise (such
Service access Minimu m 12 inches ( 19.68 cm) front and back for service access and
Power Adequate po wer source within 6 feet (1.83 m).
Tabletop requirements Flat area approxi m ately 13 inches (33.0 cm) by 8 inches (20.3 cm).
Rack requirements Standard 19-inch (48.26 cm) EIA equipment rack, with supplied mounting
Wiring hardware Wiring hardware, such as punchdown blocks or patch pane ls, should be
No nearby heat sources such as direct sunlight, warm air exhausts, or
heaters.
Adequate airflow in room or wiring closet .
as phot oc opy ma c hine or arc we lde r) .
maintenance.
Front and back clearance for cables and wiring hardware such as
punchdown blocks.
bracket hardware; 1.0 EIA rack-mount spaces needed for e ach
NETGEAR hub.
complete before installing the hub.
Model EN516/EN524 Ethernet Hub Installation Guide
Install the Hub
2
To install your hub on a flat surface, you do not need any special tools. Install the rubber footpads
that are included i n the package. Be sur e the hub is positione d w ith at l east 2 inches of spa ce on all
side s fo r ve ntilati o n.
To install the hub in a rack, you need two Phillip s screwdrivers: one size for the screws th at attach
the brackets to the hub and another size for the screws that attach the brackets to the mounting
rack. Be sure to choose a location that is near the devices to be connected, is close to an electrical
outlet, and provides at least 2 inches of space all around the hub for ventil ation.
1
P
ower
Data
Link
Collision
5
RX
13
Link RX
17
12
Link RX
Normal/Uplink
24
(Model EN524 hub shown)
8666FA
Connect a PC to the Hub
You can connect PCs, Apple Macintosh computers, UNIX workstations, or any device equipped
with a 10BASE-T Ether net interface to the RJ-45 ports o n your hub by using twisted pair Ether net
cables.
To connect any of the RJ-45 ports on your hub to a PC, use a regular straight-through UTP cable.
If you are connecting u sing port 16 on the Model EN516 hub or port 24 on the Model EN 524 hub,
set the N or m a l/U p l in k pu s h bu tto n to Normal.
(Model EN524 hub shown)
1
Data
Collision
Power
Power
Data
Link RX
5
Collision
13
Link RX
17
12
Link
RX
Normal/Uplink
24
8667FA
Note: Ethernet specificat ions limit the cable le ngth between your PC or server and the
hub to 328 feet (100 meters) in length.
Model EN516/EN524 Ethernet Hub Installation Guide
Connect the Hub to a Network
Cascading refers to connecting hubs together to increase the number of ports or the number of
users supported on the network. The 10BASE-T, BNC, or AUI ports can be used to cascade hubs
together.
Connect to a Network Using the 10BASE-T Ports
The tw isted pa ir cable exte nded from a 10BASE-T port (or UT P port) is called a twisted pai r
segment and can be up to 100 meters (m) in length. The 10BASE-T ports, with the exception of
port 16 on the Model EN516 hub and port 24 on the Model EN524 hub, are MDI-X (or Normal)
ports. Use the following table as a guide for selecting the appropriate network cable.
Connecting Port
on the Hub
Model EN516 hub:
Ports 1–15 PC, se rver , or router Straight-through cable
Ports 1–1 5 Hub or switc h Cros sove r cabl e
Model EN524 hub:
Ports 1–23 PC, server, or router Straight-through cable
Ports 1–2 3 Hub or switc h Cros sove r cabl e
Connecting Device Cable Used
Set the Normal/Uplink Push Button
If you are connecting to port 16 on the Model EN516 hub or to port 24 on the Model EN524 hub,
use the fo llowing table. Determine the type of cab le to use and how to set the Normal/Uplink push
button for either port 16 or port 24.
Connecting Port Connecting Device Cable Used
Port 16 or port 24 set to Normal PC, se rver , or router Straight-through cable
Port 16 or port 24 set to Uplink Hub or switch Straight-through cable
Model EN516/EN524 Ethernet Hub Installation Guide
You can cascade hubs together through any of the ports. The following illustration shows
cascading hubs together in a hierarchical star through the 10BASE-T ports and indicates the
setting of the Normal/Uplink push button on each hub.
Model EN524 hub
Normal
1
Uplink
Uplink
Model EN516 hub Model EN524 hub
MODEL
23
PORT
16
10/100Mbps
Ethernet Hub
Power BNCRxAUI
CollisionPartitionPartition
1
Link/RxPartition Link/RxPartition
Rx
9
EN516
8
Normal/Uplink
16
Uplink
Uplink
Model EN524 hub Model EN516 hub
MODEL
4
5
PORT
16
10/100Mbps
Ethernet Hub
Power BNCRxAUI
CollisionPartitionPartition
1
Link/RxPartition Link/RxPartition
Rx
9
EN516
8
Normal/Uplink
16
AB
8664FA
Note: Ethernet specifications limit the number of hubs with twisted pair links in any
communication path to five , as shown in the exampl e. When PC “A” communicates
with PC “B,” the communication path goes from hub 4 to hub 2, to hub 1, to hub 3,
and then to hub 5 (or five paths).
The following illustration shows cascading hubs together daisy-chain style and indicates the
setting of the Normal/Uplink push button on each hub.
Model EN516 hub
PORT
16
10/100Mbps
Ethernet Hub
Model EN524 hub
Model EN524 hub
Power BNCRxAUI
CollisionPartitionPartition
MODEL
1
Rx
Link/RxPartition Link/RxPartition
9
EN516
8
Normal/Uplink
16
Normal
Uplink
Uplink
8665FA
Model EN516/EN524 Ethernet Hub Installation Guide
Connect to a Network Using the BNC Port
The BNC port on the rear panel of the hub is used for connecting to a thin coaxial segment. You
can connect other Model EN516 or Model EN524 hubs, server s, workstations, or other devices to
the BNC port. A BNC-T connector is inserted in the port, and the 50 Ω termi nator te rminat e s the
connecti on at each end device. By using th e B N C port for cascading, you treat each connected hub
as just another node on the coaxial segm ent.
The separation marks in the coaxial cable between the hubs in this illustration represent the
incorporation of other devices and show that int erconnecti on is not limited to hubs.
BNC T- connector
BNC 50 terminator
BNC 50 terminator
8074FA
Note: Ethernet specifications limit a BNC segment to 30 BNC connections, specify a
minimum of 1.64 feet (0.5 m) between any two stations, and limi t segments to 607 feet
(185 m) in length.
Model EN516/EN524 Ethernet Hub Installation Guide
Connec t to a Network Using the AUI Port
The AUI port on the re ar pane l of the hub is norma lly us ed f or conne ct ing a thick coax ial se gme nt .
With the right type of transceiver, you can use the AUI port to connect to most types of network
media, including 10BASE-T twisted pair cable or thin coaxial, thick coaxial, and 10BASE-FL
fiber optic cables.
Note: All trans c eivers connected to the AUI port must h ave the signal quality error
(SQE) test function disabled. Refer to your transceiver documentation for information
about disabling the SQE test function.
Cable terminator device
AUI cable
Thick
coaxial
cable
10BASE-5
transceiver
8075FA
Note: Ethernet specifications limit segments to 100 statio ns and 1,640 feet (500 m) in
length, and they specify that the AUI cable between the hub and the transceiver is
limited to 164 feet (50 m).
Verify the Installation
To complete the installation, connect the power cord first to the power receptacle on the hub rear
panel and then to the power outlet on the wall. When power has been applied to the hub:
• The green Power LED on the front panel is on.
• The green Link/Rx LED on each connected port is on.
If there are any problems, refer t o “Troubleshooting Informati on.”
Model EN516/EN524 Ethernet Hub Installation Guide
Troubleshooting Information
Refer to this table and the information that follows the table to troublesh oot your Model EN516 or
Model EN524 hub.
Symptom Cause Solution
Amber Collision
LED blinks.
Data collision is
normal on Ethernet
networks.
No action is required.
Amber Collision
LED blinks
excessively.
Green Link/Rx
LED on the
10BASE-T port is
off when a cable
is at tached or not
blin king when
there is data
transm ission.
Amber Partition
LED on the
10BASE-T por t,
BNC port, or AUI
port turns on.
There is data
collision on the
network because the
network is extremely
busy or defective
devi ces are
connected on the
network that cannot
detect network traffic
or collision.
Wrong or miswired
cables are used.
The port is not
detec tin g a
successful link or
data transmissi on.
The connected port
is par ti t io ne d
because of exc essiv e
collis ions.
Make sure connected devices are operating in halfduplex mode. The hub is not compat ible with devices
that operate in full-d uplex mode.
If you suspect that there might be a defect ive device on
the network, disconnect devices one at a time to isolate
the defective unit on the network.
If the network is extremely busy, you may have to
segment the network with an Ethernet switch such as a
NETGEAR Ethernet switch or to upgrade your network
to Fast Ethernet operation.
Make sure the correct UTP cables are used. See the
table in the installation section of this guide for cable
use and Normal/Uplink push button information. Note
that home telephone cables can cause a collision
condition and cannot be used in pl ace of UTP cables .
Check for a bad cable, cable pairs that are not correctly
wired, or loose connectors. Make sure that there is
power to both the hub and the Ethernet transceiver on
the connected device. Make sure the port has not been
partitioned.
The 10BASE-T port, BNC port, or AUI port is
partitioned after 32 consecutive collisions are detected.
When the first good packet without a collision is
received, th e port is reconnected and the amber
Parti tio n LE D tu rns of f . Ch ec k a nd corr ec t c auses li st ed
in this table for excessive collisions. Make sure that:
• The correct cab le is used and the cable is not faulty.
• There are no faulty connectors.
• The network card in your PC is set to half-duplex.
If the amber Partition LED on the BNC port turns on,
also make sure that:
• Each segment is terminated with a BNC 50 Ω
terminator at both ends. Note that if the BNC port is
not in use and the amber Partition LED turns on
(which could happen), n o action is required.
If the amber Partition LED on the AUI port turns on,
also make sure that:
• The coaxial transceiver is functioning properly, the
coaxial segment is terminated properly, and the
segment is not disconnected along the cab le
length.
• The signal quality error (SQE) test on the
transceiver is disabled. Refer to your transceiver
documentatio n for instruct io ns.
Model EN516/EN524 Ethernet Hub Installation Guide
Cable Con n ect or Infor m ati on
Network Interface Cards
Make sure the network interface cards installed in the workstations are in working condition and
the softw are driver has been installed.
Hub Integrity
If re quired, verify the in tegrit y of th e hub by rese tting it. Turn power to th e swit ch off a nd then
back on. If the problem continues and you have completed all the preceding diagnoses, contact
NETGEAR Customer Support. For the phone number of the representative in your area, see
“Customer Sup port.”
Twisted Pair Cables
For two devices to communicate, the transmitter of each device must be connected to the receiver
of the other device. The crossover function is usually implemented in- ternally as part of the
circuitry in the device. Most ports on switches and repeaters have media-dependent inter- faces
with crossover ports. These ports are referred to as MDI-X or Normal ports. Computer and
workstation adapter cards are usually mediadependent interface ports referred to as MDI or Uplink ports.
The figures illustrate the use of straight-t hrough and crossover t w isted pair cables.
Uplink or
MDI port
Tx
Rx
Normal or
MDI-X port
Rx
Tx
Straight-through
twisted pair cable
1
2
3
6
Crossover
twisted pair cable
1
2
3
6
Normal or
MDI-X port
1
Rx
2
3
Tx
6
Normal or
MDI-X port
1
Rx
2
3
Tx
6
Model EN516/EN524 Ethernet Hub Installation Guide
8146EB
RJ-45 Connector
The RJ-45 connector (shown in the illustration with an RJ-45 plug) is used to connect
workstations, hubs, and switches through unshielded twisted pair cable. The RJ-45 connector
accepts four-pair Category 3 or Category 5 UTP cable. Only two pairs are used for 10BASE-T
wiring.
12345678
18
711EA
Normal Assignment:
Ports 1–15 on the
Model EN516 hub
RJ-45 Connector
Pin Assignment
1 Input Receive Data + Output Transmit Data +
2 Input Receive Data - Output Transmit Data 3 Output Transmit Data + Input Receive Data +
6 Output Transmit Data - Input Receive Data 4, 5, 7, 8 Not used Not used
Ports 1–23 on the
Model EN524 hub
Uplink Assignment:
Port 16 on the
Model EN516 hub
Port 24 on the
Model EN524 hub
AUI Connector
The AUI connector for the hub connects the hub through an external transceiver to other devices.
An inter -repeater f iber link using a 10BA SE-F transceiver is an example of such an application.
AUI connector
1 8
15 9
8148EA
AUI Connector Pin Assignment Signal
1, 4, 11, 14, 15 Ground
2CI-A
3DO-A
5DI-A
6 + 12 V DC return
7, 8 Not used
9CI-B
10 DO-B
12 DI-B
13 + 12 V DC (500 mA maximum)
Model EN516/EN524 Ethernet Hub Installation Guide
BNC Connector
The BNC connector for the hub supports 10 Mbps data transmission and connects the hub to other
devices.
BNC connector
Center conductor
1
Ground shield
2
8149EA
The BNC port on the hub, with the BNC T-connector and the 50 Ω terminator, is used for
conne ct i n g to a th in co ax ia l seg m e n t.
BNC T-connector
50 Ω terminator
50
OHM
8150FA
Model EN516/EN524 Ethernet Hub Installation Guide
Technical Specificatio ns
General Specifications
Network Protocol and Standards Compatibility
IEEE 802.3i, 10BASE-T,
10BASE-2, 10BASE-5 Ethernet
Data Rate
Interface
Power
Physical Spe cificat io n s
Width: 13.0 inches (330 mm)
Height: 1.7 inches (43 mm)
Depth: 8.0 inches (203 mm)
Weight:
Model EN516 hub 4.8 lb (2.2 kg)
Model EN524 hub 5.0 lb (2.3 kg)
Environmental Specifications
Opera ting temperatur e: 0° to 40° C (32° to 104° F)
Operating humidity: 90% maximum relative humidity, noncondensing
Electromagnetic Emissions
CE mark, commercial
FCC Part 15 Class A
EN 55 022 (CISPR 22), Class A
VCCI Class 1 ITE
Electromagnetic Susceptibility
Electrostatic discharge (ESD): IEC 801-2, Level 2/3/4
Radiated electromagnetic field: IEC 801-3, Level 2
Electrical fast transient/burst: IEC 801-4, Level 2
Electrical surge: IEC 801-5, Level 2
Safet y Agency Appro vals
CE mark, commercial
UL listed (UL 1950)
CSA certified (CSA 22.2 #950)
TUV licensed (EN 60 950)
10 Mbps, Manchester encoded
16 10BASE-T ports (RJ-45) on the Model EN516 hub
24 10BASE-T ports (RJ-45) on the Model EN524 hub
On both the Model EN516 and Model EN524 hubs:
1 BNC 10BASE-2 port
1 AUI port (15-pin D-type)
100–240 V, 50/60 Hz,
(auto selection)
0.15 A maxi mum
CE mark, commercial
Model EN516/EN524 Ethernet Hub Installation Guide
© 1998 by NETGEAR, Inc. All rights reserved.
Trademarks
Bay Networks is a registered trademark of Bay Networks, Inc. NETGEAR is a trademark of Bay Networks, Inc.
All other trademarks and registered trademarks are the property of their respective owners.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the prod uc t s
described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
Certificate of the Manufacturer/Importer
It is hereby certified that the Model EN516 and Model EN524 Ethernet hubs have been suppressed in accordance with the conditions set out in the
BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations
may, however, be subject to certain restrictions. Please refer to the notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right
to test the series for compliance with the regulations.
Vol u ntary Control Council for Interference (VCCI) Statement
This equipment is in the first category (information equipment to be used in commercial and/or industrial are as) and conforms to the standards set
by the V oluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines that are aimed at preven ti ng radi o
interference in commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be caused to equipment such
as radios and TV receivers.
Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide r easonable prot ection against harmful interference when the equipment is operated i n a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instruction manual, it
may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference,
in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense.
EN 55 022 S ta t e me n t
This is to certify that the Model EN516 and Model EN524 Ethernet hubs are shielded against the generation of radio interference in accordance
with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22).
This is a Class A product. In a domestic environment, this product may cause radio interference, in which case, the user may
be required to take appropriate measures.
Canadian Department of Communications Radio Interference Regulations
This digital apparatus (Model EN5 16 and Model EN524 Eth ernet hubs) do not exceed the Class A limits for rad io-noise emissions fro m digital
apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.
Règlement sur le brouillage radioélectrique du ministère des Communications
Cet appareil numérique (Model EN516 et Model EN524 Ethernet hubs) respecte les limites de bruits radioélectriques visant les appareils
numériques de classe A prescrites dans le Règlement sur le brouillage radioélectrique du ministère des Communications du Canada.
Model EN516/EN524 Ethernet Hub Installation Guide
NETGEAR , In c.
A Bay Networks Company
4401 Great America Parkw ay
Santa Clara, CA 95054 USA
Phone: 888-NETGEAR
Customer Support
Phone
Australia: 1800-142-046
France: 0800-90-2078
Germany: 0130-817305
Japan: 0120-66-5402
Korea: 00308-11-0319
New Zealand: 0800-4 44-626
Sweden: 020 -790086
United Kin gdom: (44) 171-571-5120
U.S./Canada: 800-211- 2069
Internet/World Wide Web
The NETGEAR Web page is at http://NETGEAR.baynetworks.com.
Defective or damaged mercha ndise can be returned to your point-of-s ale
representative.
*M-EN500NA-0*
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