AirLive ETHER-GSH24T Manual de usuario
User’sManual
Ether-GSH24T
24-Port Gigabit Ethernet Switch
2
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 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 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.
3
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).
4
TABLE OF CONTENTS
ABOUT THIS GUIDE ...................................................... 5
TERMS............................................................................ 5
OVERVIEW OF THIS USER’S GUIDE ................................... 5
INTRODUCTION ............................................................. 6
GIGABIT ETHERNET TECHNOLOGY ................................... 6
SWITCHING TECHNOLOGY................................................ 7
FEATURES ...................................................................... 8
UNPACKING AND SETUP ............................................. 9
UNPACKING .................................................................... 9
SETUP ............................................................................ 9
DESKTOP INSTALLATION ................................................ 10
RACK INSTALLATION ...................................................... 11
IDENTIFYING EXTERNAL COMPONENTS................. 12
FRONT PANEL ............................................................... 12
REAR PANEL................................................................. 13
LED INDICATORS .......................................................... 14
TECHNICAL SPECIFICATIONS................................... 15
5
About This Guide
This user’s guide tells you how to install your 24-Port
1000BASE-T Gigabit Ethernet Switch, how to connect it to
your Gigabit Ethernet network.
Terms
For simplicity, this documentation uses the terms “Switch”
(first letter upper case) to refer to the 24-Port
1000BASE-T Gigabit Ethernet Switch, and “switch” (first
letter lower case) to refer to all Ethernet switches,
including the 24-Port 1000BASE-T Gigabit Ethernet
Switch.
Overview of this User’s Guide
Introduction. Describes the Switch and its features.
Unpacking and Setup. Helps you get started with the
basic installation of the Switch.
Identifying External Components. Describes the front
panel, rear panel, and LED indicators of the Switch.
Technical Specifications. Lists the technical specifications
of the Switch.
6
Introduction
This section describes the features of the 24-Port
1000BASE-T Gigabit Ethernet Switch, as well as giving
some background information about Gigabit Ethernet and
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 tenfold 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.
7
Gigabit Ethernet supports 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.
Switching Technology
Another key development pushing the limits of Ethernet
technology is in the field 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 making it
possible for a local area network to be divided into different
segments which don’t compete with each other for network
transmission capacity, giving a decreased load on each.
The switch acts as a high-speed selective bridge between the
individual segments. Traffic that needs to go from one segment
to another is automatically forwarded by the switch, without
interfering with any other segments. This allows the total
network capacity to be multiplied, while still maintaining the
same network cabling and adapter cards.
8
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 and the setup and maintenance required make
routers relatively impractical. Today’s switches are an
ideal solution to most kinds of local area network
congestion problems.
Features
The 24-Port 1000BASE-T Gigabit Ethernet Switch was
designed for easy installation and high performance in an
environment where traffic on the network and the number
of users increase continuously.
24 1000BASE-T Gigabit Ethernet ports
Supports Auto-Negotiation for speed and duplex
mode
Supports Auto-MDIX for each port
Full/half duplex transfer mode for 10Mbps and
100Mbps
Full duplex transfer mode for 1000Mbps
Wire speed reception and transmission
Store-and-Forward switching method
IEEE 802.3x flow control for full-duplex mode
Integrated address Look-Up Engine, supports 32K
absolute MAC addresses
Supports 2M Bytes data buffer per device
Extensive front-panel diagnostic LEDs
9
Unpacking and Setup
This chapter provides unpacking and setup information
for the Switch.
Unpacking
Open the shipping carton of the Switch and carefully
unpack its contents. The carton should contain the
following items:
♦One 24-Port 1000BASE-T Gigabit Ethernet Switch
♦Accessory pack: 2 mounting brackets and screws
♦Four rubber feet with adhesive backing
♦One AC power cord
♦This User’s Guide
If any item is found missing or damaged, please contact
your local reseller for replacement.
Setup
The setup of the Switch can be performed using the
following steps:
♦The surface must support at least 5 kg.
♦The power outlet should be within 1.82 meters (6 feet)
of the device.
10
♦Visually inspect the power cord and see that it is
secured fully to the AC power connector.
♦Make sure that there is proper heat dissipation from
and adequate ventilation around the Switch. Do not
place heavy objects on the Switch.
Desktop Installation
When installing the Switch on a desktop or shelf, the
rubber feet included with the device must be first attached.
Attach these cushioning feet on the bottom at each corner
of the device. Allow enough ventilation space between the
device and the objects around it.
Gigabit Ethernet Switch installed on Desktop
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