Macsense FDH-608 Скачать руководство пользователя

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Many problems can also be avoided by:

- Leaving a free space (10cm at least) in front of the hub's lateral fan.

- Keeping the hub away from any electromagnetic interference, light

sources, or direct sunlight.

- Making sure that all cables, from node to node, do not exceed the recom-

mended maximum length of 100 meters.

- Checking the quality of the cables and outlets used to connect the hub to

end nodes and to the wall adapter.

- Choosing a location that fits the network's configuration and ensures the

hub's safety.

- Paying attention to the cables' physical path and keeping them clear of any

interference.

Chapter 6 - continued

Содержание FDH-608

Страница 1: ...1 User s Manual Dynamic Dual Speed Hub FDH 608 616 R acsense ...

Страница 2: ...ards 7 Cables Required 7 Chapter 4 How to Configure a Fast Ethernet Network 9 Cable Length 9 Uplinking 9 Different Network Topologies 10 Other Ways to Expand a Network 11 Chapter 5 How to Install a Hub 13 Before the Installation 13 Physical Installation 14 Connecting Hubs or Other Devices 15 Stacking the Dual Speed Hub 16 Removing the Protective Cover 17 Cable Connections 18 Checking Port Status 1...

Страница 3: ... in a routing table The information on this routing table helps to identify the traffic and directs fast 100BASE TX or slow 10BASE traffic to the proper repeater buses By separating the two repeater buses into dif ferent collision domains the overall collisions that might occur are reduced relative to the number that might occur if two traffic flows were to coexist in a singular colli sion domain ...

Страница 4: ...RJ 45 ports using Category 5 UTP UTP 5 Category 1 STP STP 1 for 100BASE TX or Category 3 4 5 UTP UTP 3 4 5 Category 1 STP STP 1 or equiva lent cables for 10BASE T We recommend starting from the highest numbered jack All devices that will be connected to the hub have to be equipped with Fast Ethernet adapters The maximum cable length between any end node in the network and the hub is 100 meters 328...

Страница 5: ...her Switch Repeater hub Individual port status LEDs for LINK RX 10 100 PAR and 10 100 Collision status LEDs General Features of FDH 616 16 Port Dual Speed Stackable Hub Compliant with the IEEE802 3 10Mbps repeater specification 10BASE T Compliant with the IEEE802 3u 100Mbps repeater specification 100BASE TX 16 port 10BASE T for Ethernet connectivity Supports Category 3 4 5 Unshielded Twisted pair ...

Страница 6: ...n EIA designation Each jack serves to connect a cable to the network device The jack label 1X is designated as an uplink jack Uplink jacks are designed for connections to other network devices 4 8 3 7 2 6 1 1X 5 5 6 7 8 1 2 3 4 PWR 10M 100M 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX COL 5 6 7 8 1 2 3 4 PWR 10M 100...

Страница 7: ...WhatÕs more these stackable hubs break Fast Ethernet s two hub cascade barrier allowing you to link up to three hubs via the built in stack ports using any combination of these hub models These Dual Speed Hubs provide an effective solution for expanding Ethernet and Fast Ethernet networks at a modest price Up to three units can be stacked together supporting up to 24 8 Port Fast Ethernet Dual Spee...

Страница 8: ...sions occur when two or more nodes accidentally attempt to transmit data across the network at the same time This happens more often with increased traf fic Naturally when you have more packets traveling across the network the occur rence of collisions will increase Although collisions do not cause any serious harm they can affect the speed at which all nodes on the network receive data Moreover c...

Страница 9: ...llisioned nodes to prevent further disruption of the network Showing whether each network node is currently connected and idle trans mitting data or in 10BASE T 100BASE TX mode However according to the type of device that is connected to a hub different applications are supported Typical applications performed by a hub are Establishing peer to peer relations between workstations Interconnecting us...

Страница 10: ... and Fast Ethernet Standards Standards for Ethernet and Fast Ethernet systems are issued by the Institute of Electrical and Electronic Engineers IEEE The standard for Ethernet twisted pair networks is known as the IEEE802 3 standard or 10BASE T Its successor Fast Ethernet is governed by the IEEE802 3u standard or 100BASE TX Your hub complies with the 100BASE TX standard To set up a network with a ...

Страница 11: ...ted pair UTP 3 4 5 or Category 1 shielded twisted pair STP 1 or any equivalent cable to transmit data 100BASE TX requires Category 5 unshielded twisted pair UTP 5 or Category 1 shielded twisted pair STP 1 or any equiva lent cable to transmit data Either UTP 5 STP 1 or equivalent cable must be used with a Fast Ethernet Those cables are easy to find as they are widely sold in retail stores and are p...

Страница 12: ...tion to each cable ensuring that no cable exceeds the length limit and that this length is well managed between end nodes and the hub Uplinking Uplinking a hub with another network expansion device such as a router switch bridge or repeater hub allows users to increase the number of ports on a network A 100BASE TX hub can be uplinked with another 10BASE TX 100BASE TX hub through a twisted pair cab...

Страница 13: ...one device or it can used in a multiple device environment Standalone device When just one hub is being used in a network the hub is said to be a stand alone hub The hub can only be connected to users workstations In this case the network s main function will be to exchange data in peer to peer relationships If users not only want to exchange data between end nodes but also want to give all connec...

Страница 14: ... users may want to expand further improve network capabilities or integrate other networks Here is a brief introduction to the different ways of optimizing a network Dual Speed hubs Dual speed devices allow users to integrate 10BASE T devices to a Fast Ethernet network If you already have an Ethernet network a dual speed hub may allow you to pro tect previous investments in Ethernet technology whi...

Страница 15: ...automatically adjust itself to the power available Humidity The hub and indeed the entire network should be located in the driest area possible Humid places should be avoided as humidity can damage the equipment The non condensed degree of humidity in which the hub can operate ranges from 5 to 95 percent Temperature While the hub can be stored in places with temperatures ranging from 0ûC to 40ûC 3...

Страница 16: ...lled near a power outlet preferably one located in a position that is central to all network end nodes Hardware The availability of all connectors and cables required to install the hub and network should be checked Distance from wall adapter Direct connection between the wall adapters and the hub is preferable Airflow This is crucial Nothing should press against the hub s left or right sides Also...

Страница 17: ...onnections Use UTP 5 or STP 1 cables for 100BASE TX connections 2 Connect UTP Cable to the uplink port of the Hub then to a regular port on the Dual Speed Stackable Hub FDH 608 or FDH 616 The figure below illustrates an example of an expanded network segment Installing a Dual Speed Hub 15 This is an example of uplinking FDH 608 to FDH 608 This is an example of uplinking FDH 616 to FDH 616 ...

Страница 18: ...can easily meet the networking needs of most small to medium sized workgroups As your workgroups gradually expand just add more hubs to your stack or cascade to another hub or switch using ordinary straight through cable To make a hub to hub connection do the following 1 Locate the MII Port on the right side of the hub After removing the protec tive cover you will see two male socket ports availab...

Страница 19: ...ast Ethernet Hub this protective cover cannot close properly Therefore this cover is designed with a brake away part to provide space for the MII cable to pass through 1 Locate the MII Port on the right side of the hub 2 Remove the cover from the hub chassis 3 Fold and brake away the extra part of the cover Note There is a cutter on the protective cover and it will break into two pieces when force...

Страница 20: ...ing plugged into the end node s adapter it should be plugged into the hub s selected jack The following cable requirements should be remembered before proceeding with connections Cables must be of a UTP 5 or STP 1 or equivalent cable type in order to be used in a Fast Ethernet network Such cables must feature RJ 45 plugs at both ends and straight through wiring In a Fast Ethernet network cable len...

Страница 21: ...ill shine steadily The hub will then automatically test each port connection The end node must be turned on for the test to succeed If the end node is not turned on the port will indicate a connection failure All ports connected to an end node should show a lighted link activity indicator If the test fails and the end node is turned on the cable connection should be checked then the power connecti...

Страница 22: ...enever the hub is connected to the wall adapter If the green light fails to shine steadily contact your dealer 10M COL indicator For FDH 608 FDH 616 Color Yellow Label Collision 100M COL indicator For FDH 608 FDH 616 Color Yellow Label Collision A collision occurs whenever two end nodes are sending data at the same time on the network Collisions are frequent in a Fast Ethernet network When a colli...

Страница 23: ...ndicator For FDH 608 Color Green Label Link One link LED is displayed for each port on the hub This indicator shows whenever the hub is receiving information When data is reaching the hub this indicator flashes LK RX indicator For FDH 616 Color Green Label Receive The hub possesses one such LED on its front panel This indicator shows whenever the hub is receiving information When the port is conne...

Страница 24: ...ked to see if it is defective Length limits Remember that the length limit for a connection between an end node and a hub cannot exceed 100 meters Cable being used for the connection Straight through cables are used to interconnect a hub to another hub via an uplink port a station or a server Quality of the cable being used The cable begin used for the connection should be checked for defects The ...

Страница 25: ... sure that all cables from node to node do not exceed the recom mended maximum length of 100 meters Checking the quality of the cables and outlets used to connect the hub to end nodes and to the wall adapter Choosing a location that fits the network s configuration and ensures the hub s safety Paying attention to the cables physical path and keeping them clear of any interference 24 Chapter 6 cont...

Страница 26: ...o 104ûF Storage 25ûC to 70ûC 13ûF to 158ûF Humidity 5 to 95 non condensing Net Weight 900g 1 98lbs FDH 616 Standards IEEE 802 3 10BASE T IEEE 802 3u 100BASE TX Ports 16 x 10BASE T 100BASE TX ports and 1 x Uplink port Network Media STP 1 UTP 3 4 5 cabling Communication Rate 10Mbps 100Mbps Half Duplex Address Table 1792 Entries Input Voltage 115 VAC 230 VAC Universal Input 50 to 60 Hz Power Consumpt...

Страница 27: ...rticular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the inter ference by any of the following measures Reorient or move the receiving antenna Increase the distance between the equipment and receiver Connect the equipment to an outlet on a circuit...

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