D-Link DES-1026G Manuel utilisateur

D-Link DES-1026G

24-Port 10/100Mbps + 2-Port Combo GE

Copper/SFP Ethernet Switch

Manual

Version 5.00

October 10.2013

17.P6.202014805

Table of Contents

1. Package Contents ............................................. 3

2. Introduction........................................................ 3

3. Installation.......................................................... 8

4. Technical Specifications...................................11

1. Package Contents

One DES-1026G 24-Port 10/100Mbps + 2-Port Combo GE

Copper/SFP Ethernet Switch

One AC power cord

Four rubber feet to be used for shock cushioning

Screws and two mounting brackets

Manual

If any of the above items are missing, please contact your reseller.

2. Introduction

Congratulations on your purchase of the DES-1026G 24-Port

10/100Mbps + 2-Port Combo GE Copper/SFP Ethernet Switch. This

device integrates 1000Mbps Gigabit Ethernet, 100Mbps Fast Ethernet,

and 10Mbps Ethernet network capabilities into one cost-effective solution.

This manual discusses how to install your DES-1026G 24-Port

10/100Mbps + 2-Port Combo GE Copper/SFP Ethernet Switch.

In this manual, the term “Switch” (first letter upper case) refers to your

DES-1026G 24-Port 10/100Mbps + 2-Port Combo GE Copper/SFP

Ethernet Switch, and “switch” (first letter lower case) refers to other

Ethernet switches.

This chapter describes the features of the Switch and some background

information about Ethernet/ Fast Ethernet/ Gigabit Ethernet switching

technology.

Fast Ethernet Technology

Ethernet, along with its speedier counterpart Fast Ethernet, is the most

popular networking standard in use today. 100BaseT Fast Ethernet is

an extension of the 10BaseT Ethernet standard, designed to raise the

data transmission capacity of 10BaseT from 10Mbits/sec to

100Mbits/sec. An important technology incorporated by 100BaseT is its

use of the Carrier Sense Multiple Access with Collision Detection

(CSMA/CD) protocol - which is the same protocol that 10BaseT uses -

because of its ability to work with several different types of cable,

including basic twisted-pair wiring. Both of these features play an

important role in network considerations, and they make 100BaseT an

attractive migration path for those networks based on 10BaseT. Since

the 100Mbps Fast Ethernet is compatible with all other 10Mbps

Ethernet environments, it provides a straightforward upgrade and takes

advantage of the existing investment in hardware, software, and

personnel training.

Switching Technology

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

available to users on a LAN. If an Ethernet network begins to display

symptoms of congestion, low throughput, slow response times, and high

rates of collision, installing a switch to an network can preserve much or

all of the existing network's cabling and workstation interface card

infrastructure while still greatly enhancing the throughput for users. A

switch is a viable solution even if demanding applications, such as

multimedia production and video conferencing, are on the horizon. The

most promising techniques, as well as the best return on investment,

could well consist of installing the right mixture of Ethernet switches.

A switch increases capacity and decreases network loading by dividing a

local area network into different LAN segments. Dividing a LAN into

multiple segments is one of the most common ways of increasing

available bandwidth. If segmented correctly, most network traffic will

remain within a single segment, enjoying the full-line speed bandwidth of

that segment.

Switches provide full-line speed and dedicated bandwidth for all

connections. This is in contrast to hubs, which use traditional shared

networking topology, where the connected nodes contend for the same

network bandwidth. When two switching nodes are communicating, they

are connected with a dedicated channel between them, so there is no

contention for network bandwidth with other nodes. As a result, the switch

considerably reduces the likelihood of traffic congestion.

For Fast Ethernet networks, a switch is an effective way of eliminating the

problem of chaining hubs beyond the “two-repeater limit.” A switch can be

used to split parts of the network into different collision domains, making it

possible to expand your Fast Ethernet network beyond the 205-meter

network diameter limit for 100BASE-TX networks. Switches supporting

both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also

ideal for bridging between existing 10Mbps networks and new 100Mbps

networks.

Switching LAN technology is a marked improvement over the previous

generation of network hubs and bridges, which were characterized by

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

networks, but the cost, setup, and maintenance required make routers

relatively impractical. Today switches are an ideal solution to most kinds

of local area network congestion problems.

Features and Benefits

24* 10/100BASE-TX Fast Ethernet ports + 2*Combo GE

Copper/SFP Ethernet ports

Auto MDI/MDI-X support on each port

Full/half duplex transfer mode for 10/100Mbps Fast

Ethernet transmission

Full duplex transfer mode for Gigabit Ethernet

transmission

Wire-speed reception and transmission

Store-and-Forward switching method

Integrated address Look-Up Engine, supports 8K MAC

addresses

Supports 512KBytes RAM for data buffering

Extensive front-panel diagnostic LEDs

IEEE 802.3x flow control for full-duplex

Back pressure flow control for half-duplex

Standard 19” Rack-mount size

LEDs

LED stands for Light-Emitting Diode.

The front panel LEDs provides instant status feedback and simplifies

monitoring and troubleshooting tasks

LED indicators of the Switch

POWER

When the Power LED light is on, the Switch is

receiving power.

Off

When the Power LED light is off, the power cord

is improperly connected.

Ports 1-24 Status LEDs

LINK/ACT

When the LED light is on, the respective port is connected

to the 10/100/Mbps Etherent network.

Blinking

When the LED light is blinking, the port is transmitting or

receiving data on the 10/100Mbps Ethernet network.

Off

No link.

Ports 25&26 Status LEDs

LINK/ACT

When the LED light on, the respective port is connected to

a 10/100/1000Mbps Ethernet network.

Blinking

When the LED light is blinking, the respective port is

transmitting

or receiving data on the 10/100/1000Mbps

Ethernet network.

Off

No link.

1000Mbps

When the LED light on, the respective port is connected to

a Gigabit Ethernet network.

Off

When the LED light is off, the respective port is connected

to a 10/100Mbps Ethernet network, or no link.

Connections

Front Panel 10/100 Base-TX Twisted-Pair Ports

LED Indicators Giga Combo ports

10/100 BASE-TX Twisted-Pair Ports(Port1~24)

These ports support network speeds of either 10Mbps or 100Mbps,

and can operate in half- and full-duplex transfer modes. These ports

also support automatic MDI/MDIX crossover detection, giving true

“plug and play” capability. Just plug the network cable directly into

the hub; you can use either straight-through or crossover cable.

2*Combo GE Copper/SFP Ethernet ports (Port25~26)

The DES-1026G is equipped with 2*Combo GE Copper/SFP

Ethernet ports that are auto negotiable 10/100/1000Mbps and also

support auto MDI/MDIX crossover detection. These two ports can

operate in half- and full-duplex modes. Furthermore, an SFP port can

also connect to servers and devices via fiber.

Rear Panel

AC Power Connector

This is a three-pronged connector that supports the power cord. Plug

in the female connector of the provided power cord into this

connector, and the male into a power outlet. Supported input

voltages range from 100~240V AC at 50~60Hz.

3. Installation

The site where you place the DES-1026G may greatly affect its

performance. When installing, take the following into your consideration:

Install the DES-1026G in a fairly cool and dry place. See Technical

Specifications for the acceptable temperature and humidity

operating ranges.

Install the DES-1026G in a site free from strong electromagnetic field

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

sunlight.

Leave at least 10cm(about 4 inches) of space at the front and rear of

the hub for ventilation.

Install the DES-1026G on a sturdy, level surface that can support its

weight, or in an EIA standard-size equipment rack.

When installing the Switch on a level surface, attach the rubber feet

to the bottom of each device. The rubber feet cushion the hub and

protect the hub case from scratches.

Rack Mounting

The DES-1026G can be mounted in an EIA standard-size, 19-inch rack,

which can be placed in a wiring closet with other equipments. Attach the

mounting brackets to both sides of the Switch(one at each side), and

secure them with the provided screws.

Connecting Network Cable

The DES-1026G supports 10/100/1000Mbps Gigabit Ethernet and fiber

connections. It runs in full/half duplex transfer mode for 10/100Mbps and

full duplex transfer mode for 1000Mbps. Each port on the DES-1026G

supports Auto-MDI/MDI-X. Auto-MDI/MDI-X is a feature that eliminates

the need for worrying about using either a standard or crossover

cable—you can use either one—and allows any port to be an uplink port.

AC Power

The DES-1026G can be used with AC power supply 100~240V AC,

50~60 Hz. The power switch is located at the rear of the unit adjacent to

the AC power connector. The switch’s power supply will adjust to the local

power source automatically and may be turned on without having any or

all LAN segment cables connected.

4. Technical Specifications

General

Standards

IEEE 802.3 10BASE-T Ethernet

IEEE 802.3u 100 BASE-TX Fast Ethernet

IEEE 802.3ab 1000BASE-T Gigabit Ethernet

IEEE 802.3z 1000BASE-X

Protocol

CSMA/CD

Data Transfer

Rate

Ethernet: 10Mbps (half duplex), 20Mbps (full duplex)

st Ethernet: 100Mbps (half duplex), 200Mbps (full duplex)

Gigabit Ethernet: 2000Mbps (full duplex)

Topology

Star

Network Cables

10BASET: 2-pair UTP/STP Cat. 3,4,5; up to 100m

100BASE-TX: 2-pair UTP/STP Cat. 5; up to 100m

1000BASE-T: 4-pair UTP/STP Cat. 5; up to 100m (Cat. 5E is

recommended)

Single-mode and Multi-mode fiber

Number of Ports

24 ×10/100BASE-TX Auto-MDIX STP ports

2 × Combo GE Copper/SFP Ethernet ports

Physical and Environmental

AC inputs

100 to 240V AC, 50/60 Hz internal universal power supply

Power

Consumption

Maximum 6.69 watts

Temperature

Operating:0

~ 40

℃

, Storage:-10

~ 70

℃

Humidity

Operating: 10%~90%, Storage: 5%~90%

Dimensions

440mm×140mm×44mm (W×H ×D)

Emissions

FCC/ CE/BSMI/CCC Mark Class A

Safety

FCC/ CE/BSMI/CCC Mark Class A

Performance

Transmit Method

Store-and-forward

RAM Buffer

512KBytes per device

Filtering Address +

Table

8K entries per device

Packet Filtering/

Forwarding Rate

10Mbps Ethernet: 14,880/pps 100Mbps Fast Ethernet:

148,800/pps 1000Mbps Gigabit Ethernet: 1,488,000/pps

MAC Address

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