NETGEAR EN524, EN516 User Manual

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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

10/100Mbps

Ethernet Hub

Power BNCRxAUI

CollisionPartitionPartition

Rubber

footpads

Rack mount kit

Model EN516 hub Model EN524 hub

MODEL

Link/RxPartition Link/RxPartition

EN516

Normal/Uplink

MODEL

PORT

10/100Mbps

Ethernet Hub

Power BNCRxAUI

CollisionPartitionPartition

Link/Rx

Partition

Link/RxPartition Link/RxPartition

EN524

Normal/Uplink

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

10/100Mbps

Ethernet Hub

Power BNCRxAUI

CollisionPartitionPartition

Partition LED (for AUI)

Partition LED (for BNC)

Collision LED

Power LED BNC Rx LED

AUI Rx LED

PORT

10/100Mbps

Ethernet Hub

Power BNCRxAUI

CollisionPartitionPartition

Partition

Link/Rx

Partition LED (for AUI)

Partition LED (for BNC)

Collision LED

Front Panel of the Model EN524 hub

Link/Rx Partition Link/Rx Partition

vista 10BASE-T network ports

Link/Rx Partition Link/Rx Partition

vista 10BASE-T network ports

MODEL

EN516

Normal/Uplink

Normal/ Uplink push button

MODEL

EN524

Normal/Uplink

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

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