NETGEAR EN104, EN108, EN116 User Manual

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Congratulations on your purchase of the NETGEAR™ Model EN104, Model EN108, or Model EN116 Ethernet hub. The hubs deliver standards-based, plug-and-play networking solutions for small businesses, home offices, and low-density workgroups of larger companies

.

In this installation guide, all three hubs are referred to collectively as the Model EN104/EN108/ EN116 hub. Each hub is listed individually when information is provided that refers to a specific model.

Features

The Model EN104/EN 108/EN116 hub has the following features:

• Four (on t he Mod el EN104 h ub), e igh t (on t he Mod el EN1 08 hu b) , and si xt een (on the Model EN116 hub) vi sta 10BASE-T network ports (RJ-45) that provide 10 megabit per second (Mbps) networking using simple unshielded tw isted pair (UTP) wiring

• Built-in LED indicators for at-a-glance status checks by vista networks ports

• AUI (not on the Model EN104 hub) or coaxial BNC backbone support for connecting to an existi ng Ethernet se gment or external transceiv er, or for network expansion by connecting multiple hubs together using twisted pair or coaxial cabling

• Uplink port for connecting to other hubs using simple straight-through cables

• Clear front-panel light-emitting diode (LED) indicato rs to monitor 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 fragment extension

• Automatic partitioning and r econnection of a port that has excessi ve colli sions or is jabbering

• Automatic polarity detectio n for recognizing and corr ecting incor rect polarity on the rec eive pair

• Compact design, enabling easy tabletop or rack-mounting installation

• External power adapter

• Limited five -year warranty on the uni t and one-year warranty on the power supply

Package Con te nt s

Model EN104 hub

Pwr Col

1234 5678

Mounting kit

Installation guide,

Warranty & Owner

Registration Card,

Support Information

Card

Model EN104/EN108/EN11 6 Ethernet Hub Installation Gui de

or

10 BASE-T HUB

EN104

LINK Rx

or

Model EN116 hub

10 BASE-T HUB

EN116

1234 5678

Model EN108 hub

10 BASE-T HUB

EN108

Pwr Col

1234 5678

LINK Rx

Power adapter and cord

8731FA

Verify that your package contains the following:

• Model EN104 hub, Model EN108 hub, or Model EN116 hub

• Mounting kit (for wall installation)

• BNC T-connector and BNC 50 Ω terminator (only if you have purchased the Model EN108 hub or the Model EN116 hub)

• This insta llation guide

• Warranty & Owner Registration Card

• Support Inf ormation Card

• Power adapter and cord

Product Illustration

Front Panel of the Model EN104 hub

10BASE-T ports

10 BASE-T HUB

EN104

Pwr (Power)

Col (Collision)

Pwr Col

Front Panel of the Model EN108 hub

LINK Rx

Normal/Uplink push button

10 BASE-T HUB

Pwr Col

EN108

1234 5678

LINK Rx

Front Panel of the Model EN116 hub

10 BASE-T HUB

Pwr Col

EN116

1234 5678

LINK Rx

8732FA

Vista 10BASE-T Network Ports with Built-in LEDs

The front panel of the Model EN104 hub has four RJ-45 10BASE-T ports, the Model EN108 hub has eight RJ-45 10BASE-T ports, and the Model EN116 hub has sixteen RJ-45 10BASE-T ports. Two LEDs—the Link LED and the Rx LED—are built into each 10BASE-T port.

Link LEDRxLED

8724EA

Model EN104/EN108/EN11 6 Ethernet Hub Installation Gui de

LEDs

The table below describes the activity of the LED s.

Label Color Activity Description

Pwr (Power) Green On Power is supplied to the hub. Col (Colli si on ) Amber Blinki ng Data c ol li si on i s occ ur rin g o n t he ne tw ork. No te

Link (located on the top left corn er of ea ch vista 10BASE-T por t )

Rx (located on the top right

corn er of ea ch vista 10BASE-T por t )

Active (for BNC)

Rx (for BNC)

Active (for AUI)

Rx (for AUI)

Green On T he link between this port and the connect ed

Green Blinking There is incoming data on the port.

Green On The link between the BNC port and the

Green Blinking There is incoming data on the BNC port.

Green On The link between the AUI port and the

Green Blinking There is incoming data on the AUI port.

that oc casional collisions are normal.

device is good.

connected device is good.

Normal/Uplink Push Button

The Normal/Uplink push button allows you to select Normal (MDI-X) wiring for direct PC connection. The push button also allows you to select Uplink (MDI) wiring for connection to a hub or a switch through port 4 on the Model EN104 hub, port 8 on the Model EN108 hub, or port 16 on the Model EN116 hub. This uplink configuration eli minates the need to use a crossover cable. The other 10BASE-T ports are pe rm anently configured for normal wiring for connection to a PC.

Rear Panel

The rear panel of the hub has a BNC port that you can use to connect to a backbone network or other PCs using thin coaxial cable.

The rear panel of the Model EN108 hub and the Model EN116 hub also has an AUI port in addition to the BNC port. You can use the AUI port w ith 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.

Model EN104/EN108/EN11 6 Ethernet Hub Installation Gui de

The rear panel also includes a DC power receptacle.

BNC port LEDs

BNC port

12Vdc 1.2A

Active

BNC

Rx

– +

Rear Panel of the Model EN104 hub

AUI port LEDs

AUI port

AUI

Active

Rx

Rear Panel of the Model EN108 hub

Rear Panel of the Model EN116 hub

Active

Rx

AUI

Active

Rx

12Vdc 1.2A

BNC

– +

Power receptacle

BNC

Active

Rx

12Vdc 1.2A

– +

8738FA

Installation Pr ocedures

Prepare the Site

Before you begin installing your hub, prepare the installation site. Make sure your operating

Before you begin installing your hub, prepare the installation site. Make sure your operating envi ronment meets the operating environment requirements of the equipment.

envi ronment meets the operating environment requirements of the equipment.

Characteristic Requirement

Temperature Ambien t temperature between 0° and 40° C (32° and 104° F).

No nearby heat sources such as direct sunlight, warm air exhausts,

No nearby heat sources such as direct sunlight, warm air exhausts, or heaters.

or heaters.

Opera ting humidity Maximum relative humidity of 90%, noncondensing.

Opera ting humidity Maximum relative humidity of 90%, noncondensing. Ventilation Minimu m 2 inches (5.08 cm) on all sides for cooling.

Ventilation Minimu m 2 inches (5.08 cm) on all sides for cooling.

Adequate airflow in roo m or wiring cl oset.

Opera ting conditions At least 6 feet (1.83 m) to nearest source of electromagnet ic noise

Service access Minimum 12 inches (19.68 cm) front and back for service access

Power Adequate power source within 6 feet (1.83 m).

Power Adequate power source within 6 feet (1.83 m). Wiring hardware Wiring hardware, such as punchdown blocks or patch panels,

Wiring hardware Wiring hardware, such as punchdown blocks or patch panels,

(such a s photocopy machine or arc welder).

and maintenance. Front and back clearance for cables and wiring

and maintenance. Front and back clearance for cables and wiring hardware such as punchdown blocks.

hardware such as punchdown blocks.

should be complete bef ore installing the hub.

Model EN104/EN108/EN11 6 Ethernet Hub Installation Gui de