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 reasonab le protectio n
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 ha rmful interference to
radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference, in whic h case t he 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.
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 o f 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
About This Guide.................................................................................1
Congratulations on your purchase of the 26-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch. This device integrates 1000Mbps
Gigabit Ethernet, 100Mbps Fast Ethernet and 10Mbps Ethernet
network capabilities in a highly flexible package.
Purpose
This guide discusses how to install your 26-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch.
Terms/Usage
In this guide, the term “Switch” (first letter upper case) refers to your
26-Port 10/100/1000Mbps Gigabit Ethernet Web Smart Switch, and
“switch” (first letter lower case) refers to other Ethernet switches.
1
INTRODUCTION
This chapter describes the features of the 26-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch and some background
information about Ethernet/Fast Ethernet/Gigabit Ethernet switching
technology.
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 tenfol d
increase in theoretical throughput over 100-Mbps Fast Ethernet and a
hundredfold increase over 10-Mbps Ethernet. Since it is compatible
with all 10-Mbps and 100-Mbps 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
is 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 subnets.
Gigabit Ethernet enables fast optical fiber connections to support
video conferencing, complex imaging, and similar data-intensive
applications. Likewise, since data transfers occur 10 ti mes faster than
Fast Ethernet, servers outfitted with Gigabit Ethernet NIC’s are able to
perform 10 times the n umber of operations in th e 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. And with expected advances in the coming years in
silicon technology and digital signal processing that will enable
Gigabit Ethernet to eventually operate over unshielded twisted-pair
(UTP) cabling, outfitting your network with a powerful 1000-Mbpscapable backbone/server connection creates a flexible foundation for
the next generation of network technology products.
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 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.
3
4
Switching Technology
VLAN (Virtual Local Area Network)
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. Router s 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.
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.
Features
24×10/100Mbps Auto-negotiation Fast Ethernet RJ45 ports
2×10/100/1000Mbps Auto-negotiation Gigabit RJ45 ports
2×mini-GBIC ports(shared with two Gigabit RJ45 ports)
All RJ45 ports support Auto-MDI/MDIX, so there is no need to
use cross-over cabl es or an up-link port
Full/half-duplex transfer mode for 10/100Mbps RJ45 port
5
Full-duplex transfer mode for Gigabit port
Wire-speed reception and transmission
Store-and-Forward switching scheme capability to support rate
adaptation and ensure data integrity
6
Up to 8K unicast addresses entities per device, self-learning, and
table aging
256Kbytes 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-based VLAN
Supports Port-based QoS / IEEE 802.1P based QoS
Supports Port-based Trunking
Supports Port-mirroring
Supports Port-setting for Speed/Disable, Flow control
Supports Port-based bandwidth rate control
Easy configuration via WEB Browser
Easy setting via Web Management Utility
Standard 19” Rack-mount size
7
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:
Install the Switch on a sturdy, level surface t hat can su ppor t it s weight,
or in an EIA standard-size equipment rack. For information on rack
installation, see the next section, 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.
Rack Mounting
One 26-Port 10/100/1000Mbps Gigabit Web Smart Switch
One Multi-Language Quick Installation Guide
One Utility/User’s Guide CD-ROM
Power Cord
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 insta lling, consider the following pointers:
Install the Switch in a fairly cool and dry place. See Technical Specifications for the acceptable temperature and h umidity 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 of space at the front and rear of the hub for
ventilation.
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 1. Combine the Switch with the provided screws
Then, use screws provided with the equipment rack to mount each
switch in the rack.
Figure 2. Mount the Switch in the rack
9
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