TRENDnet TEG-2248WS - Gigabit Web Smart Switch Manuale utente

FCC Warning

This equipment has been tested and found to comply with the

regulations for a Class A digital device, pursuant to Part 15 of the

FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a

commercial environment. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in

accordance with this user’s guide, may cause harmful interference to

radio communications. Operation of this equipment in a residential

area is likely to cause harmful interference, in which case the user will

be required to correct the interference at his or her own expense.

CE Mark Warning

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 adequate measures.

VCCI Warning

This is a product of VCCI Class A Compliance.

UL Warning

a) Elevated Operating Ambient Temperature- If installed in a closed

or multi-unit rack assembly, the operating ambient temperature of the

rack environment may be greater than room ambient. Therefore,

consideration should be given to installing the equipment in an

environment compatible with the manufacturer's maximum rated

ambient temperature (Tmra).

b) Reduced Air Flow- Installation of the equipment in a rack should

be such that the amount of air flow required for safe operation of the

equipment is not compromised.

c) Mechanical Loading- mounting of the equipment in the rack

should be such that a hazardous condition is not achieved due to

uneven mechanical loading.

d) Circuit Overloading- Consideration should be given to the

connection of the equipment to the supply circuit and the effect that

overloading of circuits might have on over current protection and

supply wiring. Appropriate consideration of equipment nameplate

ratings should be used when addressing this concern.

e) Reliable Earthing- Reliable earthing of rack-mounted equipment

should be maintained. Particular attention should be given to supply

connections other than direct connections to the branch circuit (e.g.,

use of power strips).

Ver. 1.00

TABLE OF CONTENT

Introduction..........................................................................................3

Switching Technology .....................................................................3

VLAN (Virtual Local Area Network)..............................................4

Features............................................................................................5

Unpacking and Installation ..................................................................9

Unpacking........................................................................................9

Installation .......................................................................................9

Rack Mounting ..............................................................................10

Connecting Network Cable............................................................11

AC Power.......................................................................................11

Identifying External Components......................................................13

Front Panel.....................................................................................13

Rear Panel......................................................................................14

Understanding LED Indicators ..........................................................15

Power and System LEDs ...............................................................15

Ports 1~48 10/100M Status LEDs..................................................16

Ports 49~50 Gigabit Status LEDs..................................................16

Ports 51~ 52 mini-GBIC Status LEDs...........................................17

Configuration.....................................................................................18

Installing the Web Management Utility.........................................18

Discovery List................................................................................19

Monitor List...................................................................................20

Device Setting................................................................................22

Toolbar...........................................................................................24

Configuring the Switch..................................................................25

Setup Menu....................................................................................27

Configuring Setup Setting..............................................................28

Port Settings...............................................................................28

VLAN Settings (Virtual Local Area Network)..........................31

Trunk Setting .............................................................................32

Device Status .............................................................................33

Statistic.......................................................................................33

System Setting ...........................................................................34

Trap Setting................................................................................35

Set Password..............................................................................36

Backup Setting...........................................................................37

Reset Setting ..............................................................................37

Logout............................................................................................38

Technical Specifications....................................................................39

INTRODUCTION

This chapter describes the features of the 48+4G-Port

10/100/1000Mbps Gigabit Ethernet Web Smart Switch and some

background information about Ethernet/Fast Ethernet/Gigabit Ethernet

switching technology.

Switching Technology

Another approach to pushing beyond the limits of Ethernet technology

is the development of switching technology. A switch bridges

Ethernet packets at the MAC address level of the Ethernet protocol

transmitting among connected Ethernet or Fast Ethernet LAN

segments.

Switching is a cost-effective way of increasing the total network

capacity available to users on a local area network. A switch increases

capacity and decreases network loading by dividing a local area

network into different segments, which don’t compete with each other

for network transmission capacity.

The switch acts as a high-speed selective bridge between the

individual segments. The switch, without interfering with any other

segments, automatically forwards traffic that needs to go from one

segment to another. By doing this the total network capacity is

multiplied, while still maintaining the same network cabling and

adapter cards.

Switching LAN technology is a marked improvement over the

previous generation of network bridges, which were characterized by

higher latencies. Routers have also been used to segment local area

networks, but the cost of a router, the setup and maintenance required

make routers relatively impractical. Today switches are an ideal

solution to most kinds of local area network congestion problems.

VLAN (Virtual Local Area Network)

A VLAN is a group of end-stations that are not constrained by their

physical location and can communicate as if a common broadcast

domain, a LAN. The primary utility of using VLAN is to reduce

latency and need for routers, using faster switching instead. Other

VLAN utility includes:

Security

Security is increased with the reduction of opportunity in

eavesdropping on a broadcast network because data will be switched

to only those confidential users within the VLAN.

Cost Reduction

VLANs can be used to create multiple broadcast domains, thus

eliminating the need of expensive routers.

Port-based (or port-group) VLAN is the common method of

implementing a VLAN, and is the one supplied in the Switch.

Limitations

TEG-2248WS has 2 port groups for VLAN settings which are

mutually exclusive. Ports from 1 through 24 are in one group and have

no limitations on the VLAN that can be set up within the group. Ports

from 25 to 52 are in the second group. Ports from group 1 cannot

belong to a VLAN with ports from group 2.

Features

 48×10/100Mbps Auto-Negotiation Fast Ethernet RJ45 ports

 2×10/100/1000Mbps Auto-Negotiation Gigabit RJ45 ports

 2×mini-GBIC ports

 All RJ45 ports support auto MDI/MDIX, so there is no need to

use cross-over cables or an up-link port

 Full/half duplex transfer mode for 10/100Mbps RJ45 port

 Full duplex transfer mode for Gigabit port

 Store-and-Forward switching scheme capability to support rate

adaptation and ensure data integrity

 Up to 4K unicast addresses entities per device, self-learning, and

table aging

 1536KBytes packet buffer

 Supports IEEE 802.3x flow control for full-duplex mode ports

 Supports Back-pressure flow control for half-duplex mode ports

 Supports Port-Base VLAN

 Supports Port-Base QoS

 Supports Trunking

 Supports Port-setting for Speed/Disable, Flow control

 Easy configuration via WEB Browser

 Easy setting via Web Management Utility

 Standard 19” Rack-mount size

UNPACKING AND INSTALLATION

This chapter provides unpacking and installation information for the

Switch.

Unpacking

Open the shipping cartons of the Switch and carefully unpacks its

contents. The carton should contain the following items:

 One 48+4G-Port 10/100/1000Mbps Gigabit Ethernet Web

Smart Switch

 One AC power cord, suitable for your area’s electrical power

connections

 Four rubber feet to be used for shock cushioning

 Screws and two mounting brackets

 CD-Rom with Web Management Utility and User’s Guide

If any item is found missing or damaged, please contact your local

reseller for replacement.

Installation

The site where you install the hub stack may greatly affect its

performance. When installing, consider the following pointers:

Install the Switch in a fairly cool and dry place. See Technical

Specifications for the acceptable temperature and humidity operating

ranges.

Install the Switch in a site free from strong electromagnetic field

generators (such as motors), vibration, dust, and direct exposure to

sunlight.

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