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AirLive Logo is registered trademarks of OvisLink Corp. Other product names and
company names are trademarks or registered trademarks of their respective owners.
FCC Warning
This equipment has been tested and found to comply with the requirements for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These requirements are designed for
reasonable protection against harmful interference when the equipment operating in a
commercial environment. This equipment can generate and radiate electromagnetic energy
and, if not installed and used in accordance with this guide, may cause significant
interference with radio communication. Operation of this equipment in a residential area is
likely to cause interference to household appliances, in which case the user will be required
to amend 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 preventive measures.
Disclaimer
Contents in this manual are subject to changes without prior notice.
About this User’s Manual
This User’s Manual aims at helping users to know the key features of
Live-GSH5T Gigabit Ethernet Switch and to install it in a
10/100/1000BASE-TX Gigabit Ethernet Local Area Network (LAN).
Table of Contents
Table of Contents
TABLE OF CONTENTS ........................................................................................I
Fig. 3-2 Bottom View of the Switch (showing mounting holes).................................... 7
Fig 3-4 10/100/1000BASE-T pin assignments for RJ-45 connector............................. 8
Fig 3-5 Pin assignments for straight-through cabling................................................... 8
Fig 3-6 Connecting the Switch to power outlet .............................................................. 9
Fig. 4-1 Connecting two switches................................................................................. 11
Fig. 4-4 Server Farm ..................................................................................................... 13
Fig. 5-1 Front-panel LED indicators............................................................................ 14
Tables
Table 3-1 Using straight-through and crossover cables.................................................. 8
Table 3-2 1000BASE-T pin assignments for RJ-45 connector ...................................... 9
Table 4-1 1000BASE-T pin assignments for RJ-45 connector ................................... 11
Table 5-1 Station Port LED .......................................................................................... 16
Live-GSH5T Gigabit Ethernet Switch
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1Product Overview
Introduction
5× 10/100/1000Base-T port Gigabit Ethernet Switch with
Broadcast Storm Control
Live-GSH5T Gigabit Ethernet Switch is an auto-sensing and auto-negotiating Gigabit Ethernet
Switch with Broadcast Storm Control capability. Its five 10/100/1000Mbps Gigabit ports provide
10/100/1000Mbps connections to PC with gigabit cards or gigabit switches
Live-GSH5T’s unique switching fabric provides non-blocking full wire speed for all ports. Auto
MDI/MDIX function is provided for conventional uplinking to another switch/hub using ordinary
straight-through cable. Each port provides up to 2000Mbps in full duplex mode. With its
auto-sensing, Live-GSH5T automatically detects the speed of the devices you plug into, and routes
the incoming data to its destination. Its auto-negotiating function allows existing devices running at
different speeds to communicate easily within the same network.
Broadcast Storm Control
The Live-GSH5T automatically filters out the broadcast traffic when the broadcast packets exceed
5% of the total traffic. Broadcast storm can significantly impede the performance of the network.
The Live-GSH5T protects your network from such situations.
Store-and-Forward Architecture against Packet Loss
When network is under heavy traffic, the shared memory buffer in the switching devices might yield
incorrect detections due to overfed memory buffer. This setback can happen either when data is
transmitted in IEEE802.3x Full Duplex or Back Pressure Flow Control mode. To solve this problem,
Live-GSH5T utilizes a fixed memory buffer allocation with Store-and-forward transmission to
ensure an effective buffer allocation for each port.
Store-and-forward transmission controls data flow from transmitting to receiving nodes with the
receiving buffer threshold adjusted to an optimal value, thus guaranteeing against all possible packet
losses.
Active Flow Control
Live-GSH5T Gigabit Ethernet Switch implements in full duplex mode a flow control that is
compliant to IEEE 802.3x standard. While in half duplex mode, it employs an optional Back
1 Product Overview
1
Live-GSH5T Gigabit Ethernet Switch
1 Product Overview
Pressure Flow Control to stall the incoming data when port buffers are saturated. With this flow
control mechanism, it can be ensured that frames dropped during transmission are reduced to a
minimum.
Non-blocking Wire Speed
Live-GSH5T’s non-blocking cross-bar matrix architecture provides high-end performance for
departmental and workgroup environments at a fraction of the cost of similar devices. Typically,
this type of architecture was found only in high-end switches designed to handle huge corporate
networks. With bandwidth needs and network efficiency concerns, Live-GSH5T’s switching fabric
design is the perfect answer for solution.
System/Port Status Information at a Glance
There are 2 sets of LEDs on the front panel: System LED and Station port LEDs,. The System LEDs
consist of the Power LED, the BCST(Broadcast Storm Control)/Diag and OvUn_Flow LED.
The station LEDs consist of the 10M Link/Act, 100M Link/Act, 1000M Link/Act
What’s Broadcast Storm Control
Broadcast Storm is the result of too much broadcast traffic in the network. Broadcast packets are
sent to every stations in the network, thus increase the overall network traffic. Broadcast storm are
likely to decrease the network performance significantly. Broadcast Storm occurs usually when
there is a loop formed in the network or when a particular application creates unordinary amount of
broadcast packets. The Live-GSH5T has built-in broadcast storm control which filter out the
broadcast traffic when it exceeds 5% of total traffic.
Solution for the digital media age
In the age of digital media, the computer has become the storage center for DV, DVD video, and
digital pictures. Furthermore, the majority of the worldwide TV format will turn to HDTV and other
digital standard in the next few years. The demand for faster network will increase dramatically.
Gigabit Ethernet will make playing DVD quality video over the network a reality. In addition, copy
Gigabytes of data over network will no longer be a time consuming process. With the Live Series
Gigabit Ethernet switch, building a network capable of fast large file sharing and real time play back
of high quality audio/video is simple and affordable.
Why Copper-wired Gigabit Connection?
With the tremendous success of Ethernet in LAN, twisted-pair cable has become the most
ubiquitous networking media all over the world. It also costs less than the fiber-optic cable. Thus, it
is very convenient to choose a copper-wired gigabit switch such as Live-GSH5T, since you can
easily set up a gigabit backbone using the kind of twisted-pair cable so ordinarily used in
10/100BASE-TX environment.
Live-GSH5T Gigabit Ethernet Switch
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