D-Link DES-1526 User manual

D-Link DES-1526
Web-Smart 26-Port Ethernet Switch with
24 10/100Mbps 802.3af Power Over Ethernet Ports
&
2 10/100/1000Mbps Combo Gigabit Ethernet Ports
Manual
First edition
Building Networks for People

i
FCC Warning
This equipment has been tested and found to comply with the limits
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
manual, 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 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.
Warnung!
Dies ist ein Produkt der Klasse A. Im Wohnbereich kann dieses
Produkt Funkstoerungen verursachen. In diesem Fall kann vom
Benutzer verlangt werden, angemessene Massnahmen zu ergreifen.
Precaución!
Este es un producto de Clase A. En un entorno doméstico, puede
causar interferencias de radio, en cuyo case, puede requerirse al
usuario para que adopte las medidas adecuadas.
Attention!

Ceci est un produit de classe A. Dans un environnement domestique,
ce produit pourrait causer des interférences radio, auquel cas
l`utilisateur devrait prendre les mesures adéquates.
Attenzione!
Il presente prodotto appartiene alla classe A. Se utilizzato in ambiente
domestico il prodotto può causare interferenze radio, nel cui caso è
possibile che l`utente debba assumere provvedimenti adeguati.
VCCI Warning
BSMI Warning
ii

iii
TABLE OF CONTENTS
Table of Contents..................................................................................i
About This Manual..............................................................................1
Purpose ........................................................................................1
Terms/Usage................................................................................1
Introduction..........................................................................................3
Fast Ethernet Technology............................................................3
Gigabit Ethernet Technology.......................................................4
Switching Technology.................................................................5
VLAN (Virtual Local Area Network)..........................................6
Power over Ethernet (PoE) ..........................................................7
Features........................................................................................7
Unpacking and Installation..................................................................9
Unpacking....................................................................................9
Installation ...................................................................................9
Installing the Switch on a Desktop ............................................10
Installing the Switch on a Rack .................................................11
Connecting Network Cables......................................................12
AC Power...................................................................................13
Identifying External Components......................................................15

iv
Front Panel.................................................................................15
LED Indicator:...................................................................15
10/100Mbps PoE Ports (Port 1~24):..................................15
1000BASE-T Gigabit Ethernet Ports (Port 25~26):..........16
mini-GBIC Ports (Port 25F~26F):.....................................16
Reset: .................................................................................17
Rear Panel..................................................................................17
Understanding LED Indicators..........................................................19
System LEDs .............................................................................19
POWER: ............................................................................19
Power Maximum (PWR MAX).........................................19
CPU: Management Indicator .............................................20
Fast Ethernet PoE Port Status LEDs (Port 1 ~ 24) ....................20
Link/ACT: Link/Activity...................................................20
100Mbps ............................................................................20
PoE Status..........................................................................20
Gigabit Ethernet Port Status LEDs............................................21
Link/ACT: Link/Activity...................................................21
1000Mbps ..........................................................................21
100Mbps ............................................................................21
mini-GICB .........................................................................21

v
Configuration.....................................................................................23
Installing the Web Management Utility.....................................23
Discovery List............................................................................24
Monitor List...............................................................................25
View Trap ..........................................................................26
Add Item............................................................................27
Delete Item.........................................................................27
Device Setting............................................................................27
Configuration Setting.........................................................27
Password Change...............................................................28
Firmware Upgrade.............................................................29
Web Access........................................................................29
Toolbar.......................................................................................30
File TAB............................................................................30
View TAB..........................................................................30
Option TAB .......................................................................31
Help TAB...........................................................................31
Configuring the Switch..............................................................31
Login..........................................................................................32
Setup Menu................................................................................34
Configuring Setup Setting .........................................................35

vi
Port Settings.......................................................................35
802.1Q VLAN Settings (Virtual Local Area Network).....37
Trunk Setting .....................................................................40
Mirror Setting ....................................................................41
SNMP Setting ....................................................................42
PoE Setting ........................................................................50
Device Status .....................................................................53
Statistic...............................................................................55
System Setting ...................................................................56
Trap Setting........................................................................57
Set Password......................................................................59
Backup Setting...................................................................60
Reset Setting ......................................................................61
Logout................................................................................61
Technical Specifications....................................................................59

1
ABOUT THIS MANUAL
Congratulations on your purchase of the DES-1526. This Switch
integrates 100Mbps Fast Ethernet and 10Mbps Ethernet network
capabilities in a highly flexible package. Since this Switch’s
Port-1 to Port-24 are Power over Ethernet (PoE) ports, it will
automatically detect the presence of IEEE 802.3af-
compliant devices and will provide power through these
PoE ports. The Switch provides up to 15.4Watts per port
and can be connected to WLAN access points, IP phones,
video cameras, and other PD devices. The Switch will
automatically detect the network appliance’s requirements,
and the Switch will supply the required power current to
each appliance.
Purpose
Thismanualdiscusses how to install your DES-1526.
Terms/Usage
In this manual, the term “Switch” (first letter upper case) refers
to your DES-1526 and “switch” (first letter lower case) refers to
other Ethernet switches.

3
INTRODUCTION
This chapter describes the features of the DES-1526 and some
background information about Fast Ethernet, Gigabit Ethernet,
Switching, VLAN, and Power over Ethernet technologies.
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity
of desktop computing applications are fueling the need for high
performance networks. A number of high-speed LAN
technologies have been proposed to provide greater bandwidth
and improve client/server response times. Among them,
100BASE-T (Fast Ethernet) provides a non-disruptive, smooth
evolution from the current 10BASE-T technology. The non-
disruptive and smooth evolution nature, and the dominating
potential market base, virtually guarantees cost-effective and
high performance Fast Ethernet solutions.
100Mbps Fast Ethernet is a standard specified by the IEEE 802.3
LAN committee. It is an extension of the 10Mbps Ethernet
standard with the ability to transmit and receive data at 100Mbps,
while maintaining the CSMA/CD Ethernet protocol. Since
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.

4
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing
the same packet structure, format, and support for CSMA/CD
protocol, full-duplex, flow control, and management objects, but
with a tenfold increase in theoretical throughput over 100Mbps
Fast Ethernet and a one hundred-fold increase over 10Mbps
Ethernet. Since it is compatible with all 10Mbps and 100Mbps
Ethernet environments, Gigabit Ethernet provides a
straightforward upgrade without wasting a company's existing
investment in hardware, software, and trained personnel. The
increased speed and extra bandwidth offered by Gigabit Ethernet
are essential to coping with the network bottlenecks that
frequently develop as computers and their busses get faster and
more users use applications that generate more traffic. Upgrading
key components, such as your backbone and servers to Gigabit
Ethernet can greatly improve network response times as well as
significantly speed up the traffic between your sub-networks.
Gigabit Ethernet enables support for video conferencing,
complex imaging, and similar data-intensive applications.
Likewise, since data transfers occur 10 times faster than Fast
Ethernet, servers outfitted with Gigabit Ethernet NIC's are able to
perform 10 times the number of operations in the same amount
of time. In addition, the phenomenal bandwidth delivered by
Gigabit Ethernet is the most cost-effective method to take
advantage of today and tomorrow's rapidly improving switching
and routing internetworking technologies.

5
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 do not 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.

6
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 the 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: A VLAN can be used to create multiple
broadcast domains, thus eliminating the need of expensive routers.
 802.1Q VLAN: The VLAN tagging option is a standard set by the
IEEE to facilitate the spanning of VLANs across multiple switches.
(Reference: IEEE Std 802.1Q-1998 Virtual Bridged Local Area
Networks.)

7
Power over Ethernet (PoE)
Power over Ethernet (PoE) integrates power and data onto one
single cabling infrastructure, eliminating the need to have AC
power available at all locations.
Power and Data are integrated onto the same cable. Supporting
category 5/5e up to 100 Meters, PoE will provide power to PoE
compatible devices, such as IP telephones, wireless LAN access
points, and IP security cameras.
PoE is already widely adopted in the market, saving up to 50% of
overall installation costs by eliminating the need to install
separate electrical wiring and power outlets.
Features
 24×10/100Mbps Auto-negotiation Fast Ethernet RJ-45 ports PoE
enabled
 2 x 1000BASE-T/mini-GBIC combo Gigabit Ethernet ports
 Compliant with 802.3af specification
 Supports PoE power up to 15.4W for each PoE port
 Supports PoE power maximum 170W for the device
 Supports PoE Powered Device (PD) classification identify
 Each port supports auto MDI/MDIX, so there is no need to use
cross-over cables or an up-link port
 Full-duplex transfer mode for speed of 10Mbps, 100Mbps, and
1000Mbps
 Half-duplex transfer mode for speed of 10Mbps and 100Mbps
 Wire speed reception and transmission

8
 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
 768KBytes packet buffer
 Supports IEEE 802.3x flow control for full-duplex mode ports
 Supports Back-pressure flow control for half-duplex mode ports
 Supports 802.1Q VLAN
 Supports Port-based Trunking
 Supports Port-mirroring
 Supports Port-setting for Speed/Disable, Flow control, and Port
based QoS (Quality of Service)
 Easy configuration via Web Browser
 Easy setting via Web Management Utility
 Standard 19” Rack-mount size

9
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 DES-1526
 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 Manual
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.

 Leave at least 10cm (4 in.) of space at the front and rear of
the hub for ventilation.
 Install the Switch on a sturdy, level surface that can support
its weight, or in an EIA standard-size equipment rack. For
information on rack installation, see the next section, titled
Rack Mounting.
 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 scratching.
Installing the Switch on a Desktop
When installing the Switch on a desktop or shelf, the rubber feet
included with the Switch should first be attached. Attach these
cushioning feet on the bottom at each corner of the device. Allow
enough ventilation space between the Switch and any other
objects in the vicinity.
Figure 1. Installed on a Desktop
10

Installing the Switch on a Rack
The Switch can be mounted in an EIA standard-size, 19-inch
rack, which can be placed in a wiring closet with other
equipment. Attach the mounting brackets at the Switch’s front
panel (one on each side), and secure them with the provided
screws.
Figure 2. Combine the Switch with the provided screws.
Then, use screws provided with the equipment rack to mount
each switch in the rack.
11

12
Figure 3. Mount the Switch in the rack.
Connecting Network Cables
The Switch supports 24 10/100BASE-TX Fast Ethernet PoE
enabled ports and 2 1000BASE-T/mini-GBIC combo ports.
These 24 PoE ports will be automatically activated when a
compatible terminal is identified. The Switch will supply power
through the PoE port to the connected PD.
For Legacy devices that are not yet compatible, the PoE port will
not offer the power to these devices. This feature allows users to
freely and safely mix legacy and Power over Ethernet compatible
devices on their network.
The Switch supports 10Mbps Ethernet or 100Mbps Fast Ethernet
and it runs both in half- and full- duplex mode using two pairs of
Category 5 cables.
The Switch also supports 2 1000BASE-T/mini-GBIC combo
Gigabit Ethernet ports. When using the RJ-45 ports, it runs in Auto-
negotiation mode with 10/100Mbps that runs in both half- and
full-duplex mode and 1000Mbps that runs in full-duplex mode
using four pair Category 5. When using the mini-GBIC ports, it
runs in optional 1000BASE-SX/LX fiber connectivity with mini-
GBIC transceiver module. The Combo Gigabit Ethernet port will
run only one of the mini-GBIC ports or RJ-45 ports The mini-GBIC
port priority is higher than the RJ-45 port, therefore if both the
mini-GBIC port and RJ-45 port are connected, then only the mini-
GBIC will activate.