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1   Product Overview 

1     

Live-GSH5T Gigabit Ethernet Switch 

 

1

 

Product 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 

Содержание LIVE-GSH5T

Страница 1: ...User s Manual All Gigabit SOHO Switch 5 10 100 1000Base T NWay Auto MDI MDIX With Broadcast Storm Control Live GSH5T ...

Страница 2: ...stalled 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...

Страница 3: ...ast Storm Control 1 Store and Forward Architecture against Packet Loss 1 Active Flow Control 1 Non blocking Wire Speed 2 System Port Status Information at a Glance 2 What s Broadcast Storm Control 2 Solution for the digital media age 2 Why Copper wired Gigabit Connection 2 Product Features 3 2 PREPARATION BEFORE INSTALLATION 4 Unpack the Package 4 The Front Panel 5 The Rear Panel 5 Station Ports 5...

Страница 4: ...ments 8 Port cabling requirements 8 Connecting to Power 9 4 EXPANDING YOUR NETWORK 10 Connectivity Rules 10 10 Mbps Connection 10BASE T 10 Copper wired 100 1000 Mbps Connection 100 1000BASE T 10 Connecting to another Switch Hub 10 Straight through Cable Connection 10 RJ 45 Gigabit Port Description 11 Summary 11 Copper wired Gigabit Connection 12 Transmission Modes 12 Copper wired Gigabit ports 100...

Страница 5: ... Comprehensive LEDs 14 System LED 14 Diagnostic LEDs 14 Station Port LEDs 14 Power LED 15 Diagnostic LEDs 15 BCST DIAG LED 15 Gigabit Port LEDs for Port 1 5 15 10M 100M 1000M Link Act LED 15 LED Summary Table 16 APPENDIX A PRODUCT SPECIFICATIONS 17 APPENDIX B TROUBLESHOOTING 19 ...

Страница 6: ... 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...

Страница 7: ...k 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 switc...

Страница 8: ...crease 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...

Страница 9: ...auto MDI X crossover for all 10 100 1000BASE T station ports Active Flow control to minimize frame drops Half Duplex Back Pressure control Full Duplex IEEE 802 3x compliant flow control Comprehensive LED indicators for system port status monitoring System LEDs Power green to indicate power on off status OvUn_flow yellow to indicate when a unicast packet overflow status Bcst DIAG yellow to indicate...

Страница 10: ...n the package carton and take out the contents carefully 3 Put back all the shipping materials such as plastic bag paddings and linings into the package carton and save them for future transport need After unpacking and taking out the entire package contents you should check whether you have got the following items Live GSH5T All Gigabit Switch One AC power adapter Rubber pads and stacking clip Su...

Страница 11: ...100Mbps station ports For the technical specifications of the ports please refer to Appendix A Product Specifications for detailed information Station Ports Live GSH5T All Gigabit Switch is equipped with 5 x 10 100 1000Mbps auto sensing and auto negotiating ports You can use these ports to connect to end stations servers or other networking devices DC Power Jack The DC Power Jack is where you shou...

Страница 12: ...work devices to the Switch connect either workstation server switch bridge or router to the station port 10 100 1000BASE T using 100 ohm unshielded twisted pair category 5E UTP or shielded twisted pair STP cable Step 3 Check the LED indicator check the LED indicator to make sure all the cable are properly connected Desktop Installation Live GSH5T Gigabit Switch has four rubber pads attached on eac...

Страница 13: ...as a central switching device to provide Gigabit bandwidth to your existing Ethernet Fast Ethernet LAN It provides you with five built in gigabit ports to establish gigabit backbone connections relieving your network bottleneck It fits well into the 10 100 1000 BASE T cabling architecture to facilitate not only 10 100Mbps half full duplex but also 1000Mbps full duplex transmission speed The five R...

Страница 14: ...ugh cabling requirements Under most conditions the 5 station ports on the Switch accept normal straight through cables i e standard UTP STP cables which are the only ones that can be used with a RJ 45 pin layout Normally 10BASE T networks require a straight through Cat 3 4 5 UTP STP cabling system The cabling system could be found in most existing Ethernet network installations 100 1000BASE T netw...

Страница 15: ...rossover a random algorithm as described in IEEE 802 3 section 40 4 4 determines which device performs the crossover Pin Assignment MDI MDIX MDI 0 BI_DA BI_DB MDI 1 BI_DB BI_DA MDI 2 BI_DC BI_DD MDI 3 BI_DD BI_DC Table 3 2 1000BASE T pin assignments for RJ 45 connector Connecting to Power Live GSH5T Gigabit Ethernet Switch features an external power supply unit which allows a power To establish it...

Страница 16: ...t most If there is a path between any two end stations containing five segments and four repeaters then at least two of the cable segments must be point to point link segments e g 10BASE T or 10BASE 5 while the remaining segments may be of mixed segments e g 10BASE 2 or 10BASE 5 Copper wired 100 1000 Mbps Connection 100 1000BASE T Copper wired Fast Ethernet Gigabit Ethernet connection should be co...

Страница 17: ...DA MDI 2 BI_DC BI_DD MDI 3 BI_DD BI_DC Table 4 1 1000BASE T pin assignments for RJ 45 connector Summary When connecting a computer to the station port gigabit port of the Live GSH5T use a straight through UTP cable When connecting the gigabit port of Live GSH5T to the station port of another hub switch use a straight through cable When uplinking Live GSH5T to any port MDI X of another hub switch u...

Страница 18: ...red Gigabit ports 1000BASE T Transmission 2000Mbps FDX 200Mbps FDX 100Mbps HDX 20Mbps FDX 10Mbps HDX Note The Gigabit port can operate both in half full duplex mode in 10 100BASE TX transmission but can only operate in full duplex mode in 1000BASE T transmission Centralized Server Farms Server farms refer to the placement of departmental servers in a data center where they can be provided with con...

Страница 19: ...ackbone switch to connect your existing Ethernet Fast Ethernet network to Gigabit networking environment Live GSH5T can provide five 1000BASE T gigabit backbone connections to another gigabit switch or high end server With gigabit throughput backbone traffic can be greatly improved for the ever increasing bandwidth demand by the internet intranet multimedia applications ...

Страница 20: ...atus or the Gigabit port status Comprehensive LEDs System LED Power LED enables users to monitor the system power Status Diagnostic LEDs The Diagnostic LEDs consist of the Bcst DIAG and OvUn Flow LEDS Together they display the operating status of the switch and the traffic monitor Station Port LEDs Gigabit Port LEDs show the port status of the Gigabit Ports on the optional modules installed Link A...

Страница 21: ...AG will flash once and remain off If the LED remained lit after several seconds then the switch might fail the power on test Broadcast Storm Control When broadcast traffic exceeds 5 of total traffic The BCST DIAG LED will keep on flashing to indicate that the switch is filtering out the broadcast packets The light will be off when the broadcast traffic is below 5 again Gigabit Port LEDs for Port 1...

Страница 22: ...stay on the system has failed the power on test The Broadcast Traffic has exceeded 5 the switch is filtering out broadcast packet The system is working normally The Unicast Buffer has overflowed Gigabit Statoin Port LEDs 10M Link Act Green ON Blinking OFF A 10Mbps Connection is made Transmitting Receiving No connection is made 100M Link Act Green ON Blinking OFF A 100Mbps Connection is made Transm...

Страница 23: ...thernet 100 Megabits sec half duplex 200 Megabits sec full duplex 1000BASE T Gigabit Ethernet 2000 Megabits sec full duplex only Transmission method Store and Forward Full Duplex Auto negotiation for 10 100 100BASE T Active Flow Control IEEE 802 3x compliant flow control for full duplex Back Pressure for half duplex Filtering Address Table 8 K per device RAM Buffer 2Mbits shared data memory buffer...

Страница 24: ...s 1000M Link Act LEDs Dimensions Desktop 209 x 144 x 49 m m Net Weight 450 g pending Power Input External AC DC Adapter with 12V 1A output 120 220VAC 50 60 Hz to DC12V 1A Power Output 12 Watts max 12 V DC Operating Temperature 32 122 F 0 50 C Storage Temperature 40 149 F 40 65 C Humidity 95 non condensing Safety EMI Certificates UL TUV VDE FCC Class A CE ...

Страница 25: ... length between switch and end node does not exceed 100 meters for 10 100 1000BASE TX connection Make sure that the maximum switch to hub switch cable distance does not exceed 100 meters for 10 100 1000BASE TX connection Verify that the cabling type used is correct Check the corresponding 10M 100M 1000M Link ACT If one of them do not light up that means a faulty connection Check the status of the ...

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