Encore ENH924-AUT Manuale utente

24 Ports NWay Switching Hub

User's Guide

V2.0

FCC Warning

This equipmenthas been tested and found to comply with the limits for a ClassAdigital

device, pursuant to Part 15 of the FCC Rules. These limitations 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 no installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guaranteethat interference will not occur in a

particular installation. If this equipment does 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 thefollowing

measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into a different outlet from that the receiver is connected.

Consult your local distributors or an experienced radio/TV technician for help.

Shielded interface cables must be used in order to comply with emission limits.

Changes or modifications to the equipment, which are not approved by the party

responsible forcompliance could affect the user’s authority to operate the equipment.

Company has an on-going policy of upgrading its products and it may be possible that

information in this document is notup-to-date. Please checkwith your local distributors

for the latest information. No part of this document can be copied or reproduced in any

form without written consent from the company.

Trademarks:

All trade namesand trademarks are the propertiesof theirrespectivecompanies.

Table of Contents

1. Unpacking Information

2. Introduction To 24 Port NWay Switch

2.1 General Description

2.2 Key Features

2.3 The Front Panel

2.3.1 System LEDs

2.3.1.1 Power LED

2.3.2 PortLEDs

2.3.2.1 Speed LED

2.3.2.2 Link/Act LED

2.4 The Rear Panel

2.4.1 Power Connecting

3. Installing And Using 24 Port NWay Switch

3.1 InstallingThe 24 Port NWay Switch

3.1.1 Desktop Installation

3.1.2 Rack-Mount Installation

3.1.3 Installing Network Cables

3.1.3.1 Station Connection with Twisted-Pair Cable

3.1.3.2 Switch to Switch Connections with Twisted-Pair Cable

4. Switching Operation

4.1 MACAddress Table & Learning

4.2 Filtering and Forwarding

4.3 Store and Forward

5. Product Specifications

1. Unpacking Information

Thank you for purchasing the 24-port NWay switch. Before you start, please check

all the contents of this package.

The product package should include the following:

1. One 24-port NWay switch

2. One power cord

3. Rubber foot

4. Rack-mount brackets and screws

5. User’s guide

2. Introduction To 24 Port NWay Switch

2.1 General Description

The device is apowerful, high-performance Fast Ethernetswitching hub, with all 24

ports capable of 10 or 100Mbps auto-negotiation operation (NWay) which means the

switch could automatically negotiate with the connected partners on the network speed

and duplex mode. It is ideal for micro-segmenting large networks into smaller, connected

subnets for improved performance, enabling the bandwidth demanding multimedia and

imaging applications. Moreover, the 10/100Mbps auto-sensing ability provides an easy

way to migrate 10Mbps to 100Mbps networks with no pain. Compared to the shared

10Mbps or 100Mbps networks, the switching hub delivers a dedicated 10/100Mbps

connection to every attached client with no bandwidth congestion issue.

Store-and-forward switching mode promises the low latency plus eliminates all the

network errors, including runt and CRC error packets. To work under full-duplex mode,

transmission and reception of the frames can occur simultaneously without causing

collisions as well as double the network bandwidth.

The switching hub is plug-n-play without any software to configure and also fully

compliant with all kinds of network protocols. Moreover, the rich diagnostic LEDs on the

front-panel can provide the operating status of individual port and whole system.

For network connection:

The switching hub can use the following types of cabling:

10BASE-T Category 3, 4 or 5 UTP/STP

100BASE-TX Category 5 UTP/STP

Category 5 cable is preferred to be using with this product in structured

wiring environments. This will ensure correct operation of all ports at 10Mbps or

100Mbps.

2.2 Key Features

The switch provides the following key features:

Complies with 10BASE-T specifications of the IEEE802.3 standard

Complies with 100BASE-TX specifications of the IEEE802.3u standard

Twenty-four RJ-45 ports for 100Base-TX and 10Base-T connectivity

Every switching port is automatically cross-over detection (MDI, MDI-X

auto-detected)

Supports full andhalf duplex operationon all ports

Wire-speed packet filtering and forwarding rate

Store-and-forward architecture filters fragment & CRC error packets

Supports 4K MAC address entries in whole system

768K Bytes buffer memory

Supports extensive LED indicators for network diagnostics

Internal universal switching power supply (100 ~ 240VAC)

FCC ClassA, CE

2.3 The Front Panel

The front panel of the switching hub is shown as below.

The auto-negotiation feature of the switching hub allows each port of the device

running at one of the following four operation modes:

1. 100Mbps full-duplex

2. 100Mbps half-duplex

3. 10Mbps full-duplex

4. 10Mbps half-duplex

Every port is automatically cross-over detection that could allow the switch connect

to PC or switch without cable consideration.

The rich diagnostic LEDs on the front-panel can provide the operating

status of individual port and whole system. The following table is a summary

for LEDs definition.

Type LED Status Operation

Green Power is onSystem Power

Off Power is off

Green Connected as 100Mbps10/100M

Off Connected as 10Mbps

Green The port is connected

Blinking Green There is traffic transverses the port

Port LEDs

Link/Act

Off No connection

2.3.1 System LEDs

System LED indicators are located on the front panel for showing the operating

status of the whole device.

2.3.1.1 Power LED

This indicator lights green when the hub is receiving power; otherwise, it is off.

2.3.2 Port LEDs

Port LED indicators are located on the front panel for showing the operating status

of each port.

2.3.2.1 Speed LED

Every port has a SpeedLED for showing the speed of network connection. Steady

green indicates that the port is operating at 100Mbps. If the LED is off, the link speed is

10Mbps.

2.3.2.2 Link/Act LED

Every port has a Link/Activity LED. Steady light (link state) indicated that the port

has good linkage to its associated device. Flashing green indicates there is traffic

transverses the port.

If the port is connectedbut the Link/Activity LED is dark, check the following items:

1. The switching hub and the connected device’s power are on or not.

2. Theport’s cable is firmly seated in its connectors in the switching hub and in the

associated device.

3. The connecting cable is good and with correct type

4. Theconnecting device, includingany network adapter is functioning.

2.4 The Rear Panel

The standard rear panel of the hub is shown below (AC Input 100 ~ 240V)

2.4.1 Power Connecting

For compatibility with electric service in most areas of the world, the switching hub’s

power supply automatically adjusts to line power in the range 100~240 VAC and 50~60

Hz.

Plug the female end of the power cord firmly into the receptacle on the rear panel of

the switching hub. Plug the other end of the power cord into an electric service outlet then

the powerwill be ready.

3. Installing And Using 24 Port NWay Switch

3.1 Installing The 24 Port NWay Switch

The hub does not require software configuration. Users can immediately use any of

the features of this product simply by attaching the cables and turning the power on.

3.1.1 Desktop Installation

Locate the switching hub on the desktop and place the hub on a clean,flat desk or

table close to a power outlet. Plug in all network connections and the power cord, then

the system is ready.

When deciding where to put the switching hub, you must ensure:

It is accessible and cables can be connected easily.

Cabling is away from:

Sources of electrical noise such as radios, transmitters and broadband amplifiers

power lines and fluorescent lighting fixtures.

Water or moisture can not enter the unit.

Air flow around the unitand through the vents in the side of the case is not

restricted (company recommend that you provide a minimum of 25mm inch

clearance)

To prolong the operational life of your units:

Never stack units more than eight high if freestanding.

Do not place objects on top of any unit or stack

Do not obstruct any vents at the sides of the case

3.1.2 Rack-Mount Installation (Rack-mount kit is optional)

The switching hub maystandalone, or may be mounted in a standard 19-inch

equipment rack. Rack mounting produces an orderly installation when you have a

number of related network devices. The switching hub is supplied with two optional rack

mounting brackets and screws. These are used for rack mounting the unit.

Rack Mounting the Switch

The switching hub should be able to fit inthe 19 inch rack.

1. Disconnect all cables from the switching hub before continuing.

2. Place the unit the right way up on a hard, flat surface with the front facing toward you.

3. Locate a mounting bracket over the mounting holes on one side of the unit.

4. Insert the screws and fully tighten with a suitable screwdriver.

5. Repeat the twoprevious steps for the otherside of the unit.

6. Insert the unitinto the 19" rack and secure with suitable screws (not provided).

7. Reconnect all cables.

3.1.3 Installing Network Cables

After placing the hub on the desktop, we need to know how to connect the device to

network.

3.1.3.1 Station Connections withTwisted-Pair Cable

Connect each station to the hub by a twisted-pair straight cable (10BASE-T or

100BASE-Tcables). Plug one RJ-45 connector into a front-panel port of the hub, and

plug the other RJ-45 connector into the station’s network adapter.

3.1.3.2 Switch to Switch Connections with Twisted-Pair Cable

In making a switch to switch connection, you just need to use normal straight cable

because of each switching port is automatically cross-over detection.

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