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User’s Manual
Dynamic Dual Speed Hub
(FDH-608/616)
R
acsense
1
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Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .II Quick Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .III Chapter 1 - General Features of a Hub . . . . . . . . . . . . . . . . . .1 General Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Rear Panel . . . . . . . . . .
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Introduction Congratulations on your purchase of this Fast Ethernet Dual-Speed Hub!! The Fast Ethernet Dual-Speed Hub consists of 8XRJ-45 ports for 10Mbps or 100Mbps Ethernet connection (determined by autosensing). This Dual-Speed hub contains two internal repeaters - one for 10Mbps and another for 100Mbps traffic. An internal Ethernet switch, consisting of a 10Mbps and a 100Mbps switching port, is used to link the repeater buses. Data will be forwarded to the other internal repeater bus under
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Quick installation This hub provides an ideal bridge between 10Mbps and 100Mbps Ethernet net- works, all for a price thatÕs comparable to a standard Ethernet or Fast Ethernet hub. Moreover, the smart design built into the display panel provides a friendly interface that simplifies installation and network troubleshooting. If you are already familiar with basic network operations, you should be able to install this hub by fol- lowing these steps: 1. Unpack the Fast Ethernet Dual-Speed Hub. 2. F
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General Features of a Dual-Speed Hub Chapter 1 - General Features of a Dual-Speed Hub General Features of FDH-608 8-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) 8-port 10BASE-T for Ethernet connectivity Supports Category 3, 4, 5 Unshielded Twisted-pair cabling (UTP-3,4,5) Supports Category 1 Shielded Twisted-pair cabling (STP-1) 8-port 100BASE-TX for Fast Ethernet con
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Chapter 1 - continued Front panel FDH-608 56 7 8 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX COL 1 23 4 PWR 10M 100M 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX FDH-616 56 7 8 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX COL 1 23 4 PWR 10M 100M 100M PART 100M PART 100M PART 100M PART LK RX LK RX LK RX LK RX The Dual-Speed hubÕs
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General Features of a Dual-Speed Hub NOTE: The jack adjacent to 1X must never be used at the same time. LED indicators allow users to check each port's status and network traffic at a glance. Extensive LEDs are displayed on the hub to allow easy network manage- ment. The power socket accepts AC power of 115~230V at 50~60 Hz. Cost-Effective Stackable Hubs These Dual-Speed Stackable Hubs provide the quickest method of upgrading your network to Fast Ethernet. There's no need to replace an existing
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A Quick Overview of Networking Terminology Chapter 2 - A Quick Overview of Networking Terminology Network Terminology A network is comprised of multiple interconnected nodes. A node can be a computer, a server (that is, a computer dedicated to storing network data or appli- cations), a shared peripheral (such as a printer or modem) or other networking devices (such as repeaters or switches, routers, transceivers, etc.). A Fast Ethernet network operates at a 100Mbps (Megabits per second) transfe
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Chapter 2 - continued hub to another hub or switch. By uplinking different hubs or switches together, the number of nodes in a network can be increased. Expanding a network is neces- sary when planning to increase the number of computers connected, or when plan- ning to offer new services, such as printing capabilities or Internet access. Each port of a Dual-Speed Hub acts as an adapter (to conform to the network environment), a transceiver (to carry data) and a repeater (to connect different se
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What Is Fast Ethernet? Chapter 3 - What is Fast Ethernet? Historical Background Fast Ethernet was developed in the early nineties as an answer to the bottle- necking problems encountered by older Ethernet networks. Ethernet is a network- ing technology that was developed in the early seventies. Ethernet networks carried data signals through thick passive cables at a 10Mbps speed. However, signals were delivered to all nodes in the network at the same time, which resulted in frequent collisions
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Chapter 3 - continued known as a shielded twisted-pair (STP). Ordinary wire to the home is unshield- ed twisted-pair (UTP). Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for Ethernet and Fast Ethernet networks. 10BASE-T : requires Category 3, 4, 5 unshielded twisted-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
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How to Configure a Fast Ethernet Network Chapter 4 - How to Configure a Fast Ethernet Network Cable Length In a Fast Ethernet network, twisted-pair cables have a length limit. No UTP or STP cable can be more than 100 meters (328 feet) long. A signal cannot be sent between two end nodes through more than 200 meters of twisted-pair cable. In a non-uplinked network, all end nodes are thus connected to a hub through cables that do not exceed 100 meters (328 feet) in length. For this reason, a non-
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Chapter 4 - continued Apart from the length limit, users have to pay attention to three other special regulations when uplinking two hubs together: 1. When uplinking two network devices together, one jack on each hub must be used. 2. The uplink cable used between both hubs must be a straight-through UTP-5, STP-1 or equivalent twisted-pair cable. 3. If using the uplink jack to uplink with another switch or hub, regular port adjacent to the uplink port must be left free. If the regular port is be
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How to Configure a Fast Ethernet Network - Multiple-device environment Increasing the size of a network through uplinking will allow a greater number of users to have access to a greater number of services. As explained previously in this manual, two hubs may be uplinked together. While uplinked, each hub's reg- ular jack must be kept free whenever its corresponding uplink jack is being used. For this reason, it is recommended that users start connecting workstations or other devices from the
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Installing a Dual-Speed Hub Chapter 5 - Installing Dual-Speed Hub Before the Installation Before installing a hub, users must make sure that they can provide their net- work with a proper operating environment. An optimal environment for a network must have these features: - Power : The hub must be provided with a power voltage ranging from 100 to 230 VAC (with an error margin of 10%) at 50 to 60Hz (± 3Hz). The hub's power supply will automatically adjust itself to the power available. - Humid
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Chapter 5 - continued Physical Installation The physical location of the hub should be carefully planned. When planning the hub's location, users should pay attention to the following factors: - Ventilation : When installing the hub, users should make sure there are open spaces of at least 10 centimeters both in front and behind the hub. - Light : Like any other electronic device, keep the hub away from direct sun- light or intense light sources. - Interference : A Fast Ethernet hub should be ke
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Installing a Dual-Speed Hub Connecting Hubs or Other Devices To make a hub-to-hub connection, do the following: 1. Make sure you have the proper cables: ¥ Use UTP-3, 4, 5 (Unshielded Twisted-Pair) cables or better for 10BASE-T connections ¥ 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. This
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Chapter 5 - continued Stacking Dual-Speed Hubs These Dual-Speed Hubs provide an effective solution for combining Ethernet and Fast Ethernet networks at a affordable price. Up to three units can be stacked together, supporting up to either 24 or 48 users. To interconnect the 10 Mbps and 100 Mbps segments, just add an FDH-608 or FDH-616 unit to the stack. For criti- cal applications, an additional hub that supports the switching function can be included in the stack for backup purposes. However, a
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Installing a Dual-Speed Hub Removing the Protective Cover This protective cover, on the right side of the hub, is designed to shield the unit from potentially damaging agents that might cause this unit to malfunction or behave erratically if the MII port is exposed. However, when a Dual-Speed Fast Ethernet Hub cascades to another Dual-Speed Fast 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 t
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Chapter 5 - continued Cable Connections Once the hub has been correctly mounted as explained before, cables linked to end nodes can be connected to the ports. Caution: While connecting cables to the hub, make sure both the hub and the equipment being connected are turned off. - Connecting end nodes with a cable : To connect a cable to an end node, users must first shut off the end node's power. If the end node is switched on while connecting it to the hub, a loose connection might result in ope
