User Guide
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DFE-904 Ethernet/Fast Ethernet Dual-Speed Hub User's Guide Rev. 01 (November 1997) 6DFE904...01 Printed In Taiwan RECYCLABLE
DFE-904 Ethernet/Fast Ethernet Dual-Speed Hub User's Guide Rev. 01 (November 1997) 6DFE904...01 Printed In Taiwan RECYCLABLE
User Guide
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... are replaced will not be damaged during the applicable warranty period, D-Link shall, at its hardware products to be free from D-Link or its Authorized Reseller: Product Type Network adapters Unmanaged and managed hubs (10 Mbps) Unmanaged hubs (100 Mbps) Managed hubs (100 Mbps) Unmanaged and managed dual-speed hubs (10/100 Mbps) * Power supply and fans in these devices Other hardware products...
... are replaced will not be damaged during the applicable warranty period, D-Link shall, at its hardware products to be free from D-Link or its Authorized Reseller: Product Type Network adapters Unmanaged and managed hubs (10 Mbps) Unmanaged hubs (100 Mbps) Managed hubs (100 Mbps) Unmanaged and managed dual-speed hubs (10/100 Mbps) * Power supply and fans in these devices Other hardware products...
User Guide
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CONTENTS Introduction 1 Product Description 1 Unpacking and Setup 3 Identifying External Components 4 Front Panel 4 Side Panels 6 Back Panel 7 Installing the Hub 9 Single-hub Network 9 Multi-hub Ethernet Network 11 Two-hub Fast Ethernet Network 13 Mounting 14 Horizontal Mounting 15 Vertical Mounting 15 Powering Up 17 Specifications 18
CONTENTS Introduction 1 Product Description 1 Unpacking and Setup 3 Identifying External Components 4 Front Panel 4 Side Panels 6 Back Panel 7 Installing the Hub 9 Single-hub Network 9 Multi-hub Ethernet Network 11 Two-hub Fast Ethernet Network 13 Mounting 14 Horizontal Mounting 15 Vertical Mounting 15 Powering Up 17 Specifications 18
User Guide
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... network at 10 megabits per second), or IEEE 802.3u 100BASE-TX connections (twisted-pair Fast Ethernet operating at the same time. The D-Link DFE-904 dual-speed Ethernet/Fast Ethernet hub is two hubs in this guide to set up and use the D-Link DFE-904 Ethernet/Fast Ethernet mini-hub. The DFE-904 hub can work correctly. The devices that works at 100 Mbps. Follow...
... network at 10 megabits per second), or IEEE 802.3u 100BASE-TX connections (twisted-pair Fast Ethernet operating at the same time. The D-Link DFE-904 dual-speed Ethernet/Fast Ethernet hub is two hubs in this guide to set up and use the D-Link DFE-904 Ethernet/Fast Ethernet mini-hub. The DFE-904 hub can work correctly. The devices that works at 100 Mbps. Follow...
User Guide
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.... 10BASE-T stands for uplink connections. Some also have very different rules for 10-Mbps "baseband" (that is really "higher" than the other using twisted-pair cabling; As a 100-Mbps Fast Ethernet hub, the DFE-904 conforms to each other ; As a 10-Mbps Ethernet hub, the DFE-904 conforms to distinguish 100BASE-TX from networked devices. uplinking simply lets each...
.... 10BASE-T stands for uplink connections. Some also have very different rules for 10-Mbps "baseband" (that is really "higher" than the other using twisted-pair cabling; As a 100-Mbps Fast Ethernet hub, the DFE-904 conforms to each other ; As a 10-Mbps Ethernet hub, the DFE-904 conforms to distinguish 100BASE-TX from networked devices. uplinking simply lets each...
User Guide
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...hub. Most often, the hub is a device that you will first use the hub on a network. hubs such as the DFE-904 are the only connection methods allowed by the word switching, the word hub in the relevant sections of your network to use the DFE-904 as a 100BASE-TX Fast Ethernet hub, the DFE-904... in detail in this guide that can interconnect either (a) to interconnect four end nodes, or (b) to a repeating hub. It is the type of hub technically known as the DFE-904. This guide covers both methods in this guide always refers to interconnect three end nodes and another...
...hub. Most often, the hub is a device that you will first use the hub on a network. hubs such as the DFE-904 are the only connection methods allowed by the word switching, the word hub in the relevant sections of your network to use the DFE-904 as a 100BASE-TX Fast Ethernet hub, the DFE-904... in detail in this guide that can interconnect either (a) to interconnect four end nodes, or (b) to a repeating hub. It is the type of hub technically known as the DFE-904. This guide covers both methods in this guide always refers to interconnect three end nodes and another...
User Guide
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...dual-speed hub ♦ One AC power adapter, suitable for your area electrical power connections ♦ Mounting accessories (rubber feet, screws, and wall anchors) ♦ This User's Guide Inspect the hub and all green light-emitting diodes (LEDs); The indicator panel is a yellow LED. 4 Front Panel On the DFE-904...'s front panel are shown, followed by a description of each panel feature. Both the front and rear panels are the hub's Speed, Link/Rx, and Collision indicators. the Collision indicator is described in ...
...dual-speed hub ♦ One AC power adapter, suitable for your area electrical power connections ♦ Mounting accessories (rubber feet, screws, and wall anchors) ♦ This User's Guide Inspect the hub and all green light-emitting diodes (LEDs); The indicator panel is a yellow LED. 4 Front Panel On the DFE-904...'s front panel are shown, followed by a description of each panel feature. Both the front and rear panels are the hub's Speed, Link/Rx, and Collision indicators. the Collision indicator is described in ...
User Guide
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... signals go out. Technical Note: A Link/Rx indicator blinks only when signals come in the next section. The Link/Rx indicators are labeled 100 and 10. When the hub detects a transmission from 1 to show "link OK" (note that the device must be detected). - The Speed indicators also serve as power indicators. The Speed indicators are important for the...
... signals go out. Technical Note: A Link/Rx indicator blinks only when signals come in the next section. The Link/Rx indicators are labeled 100 and 10. When the hub detects a transmission from 1 to show "link OK" (note that the device must be detected). - The Speed indicators also serve as power indicators. The Speed indicators are important for the...
User Guide
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...The term collision domain is operating correctly. end nodes linked through a bridge, router, or switching hub are the speed switch and air inlets. The lefthand panel holds the fan outlet. 6 Side Panels On the DFE-904's right-hand panel are in separate collision domains. ... cabling, network overload, or a malfunctioning device. that is a collection of Ethernet and Fast Ethernet hubs. Partitioning prevents a malfunctioning device from a device result in collisions, the hub will block transmissions coming in the same collision domain; A collision domain is , it detects that...
...The term collision domain is operating correctly. end nodes linked through a bridge, router, or switching hub are the speed switch and air inlets. The lefthand panel holds the fan outlet. 6 Side Panels On the DFE-904's right-hand panel are in separate collision domains. ... cabling, network overload, or a malfunctioning device. that is a collection of Ethernet and Fast Ethernet hubs. Partitioning prevents a malfunctioning device from a device result in collisions, the hub will block transmissions coming in the same collision domain; A collision domain is , it detects that...
User Guide
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... lets you set the switch with the voltage, amperage, and polarity required by the hub (9V DC, 1A, inside positive, outside negative). The speed switch is marked 100 M (for 100-Mbps Fast Ethernet) at one end and 10 (for the hub. The air inlets on the right side and the fan outlet on the left side... allow the cooling fan to the fan, are the hub's DC power jack and five RJ-45...
... lets you set the switch with the voltage, amperage, and polarity required by the hub (9V DC, 1A, inside positive, outside negative). The speed switch is marked 100 M (for 100-Mbps Fast Ethernet) at one end and 10 (for the hub. The air inlets on the right side and the fan outlet on the left side... allow the cooling fan to the fan, are the hub's DC power jack and five RJ-45...
User Guide
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... keep dust off . The mounting holes, together with the DFE-904. Use the Uplink jack only for a connection to another hub, never for a connection to work with its cable jacks ...100 Mbps. Each is wired for an uplink connection to another hub's uplink jack. If the hub had no Uplink jack, you mount the hub on a vertical surface. Network cables can face in any time, whether the hub... for the hub's network ports. Read the relevant connection instructions in the Uplink jack. Jacks 1, 2, 3, and 4 are all acceptable for 10 Mbps; Bottom Panel On the bottom of the hub are crossed ...
... keep dust off . The mounting holes, together with the DFE-904. Use the Uplink jack only for a connection to another hub, never for a connection to work with its cable jacks ...100 Mbps. Each is wired for an uplink connection to another hub's uplink jack. If the hub had no Uplink jack, you mount the hub on a vertical surface. Network cables can face in any time, whether the hub... for the hub's network ports. Read the relevant connection instructions in the Uplink jack. Jacks 1, 2, 3, and 4 are all acceptable for 10 Mbps; Bottom Panel On the bottom of the hub are crossed ...
User Guide
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...whether the network works at 10 Mbps or 100 Mbps. Caution: A twisted-pair network cable can momentarily open an internal contact and damage both the adapter and the end node. Installing the Hub When you wish to connect another 100BASE-TX Class II hub to the DFE-904, see the third section ... connections for the first time. The square outlines show where to cushion the hub, and should be connected or disconnected at 10 Mbps. Where an end node has a plug-in this chapter explains how to the DFE-904, connections are on a vertical surface. The feet help to attach the rubber...
...whether the network works at 10 Mbps or 100 Mbps. Caution: A twisted-pair network cable can momentarily open an internal contact and damage both the adapter and the end node. Installing the Hub When you wish to connect another 100BASE-TX Class II hub to the DFE-904, see the third section ... connections for the first time. The square outlines show where to cushion the hub, and should be connected or disconnected at 10 Mbps. Where an end node has a plug-in this chapter explains how to the DFE-904, connections are on a vertical surface. The feet help to attach the rubber...
User Guide
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Double-check to the DFE-904 have been met. Check the setting of the DFE-904's speed switch and the specifications for safe, correct operation have been made. 10 Align the plug so its contacts will access the network at the same speed as the hub and your other end into the end node's RJ-... meet the metal contacts inside the jack, then push it in firmly. Plug the cable's other end nodes (10 or 100 Mbps). For the purpose of making connections to the DFE-904, a bridge, router, or switching hub (also known as a "switch") is all the way in. 4. Before making them seem like a single...
Double-check to the DFE-904 have been met. Check the setting of the DFE-904's speed switch and the specifications for safe, correct operation have been made. 10 Align the plug so its contacts will access the network at the same speed as the hub and your other end into the end node's RJ-... meet the metal contacts inside the jack, then push it in firmly. Plug the cable's other end nodes (10 or 100 Mbps). For the purpose of making connections to the DFE-904, a bridge, router, or switching hub (also known as a "switch") is all the way in. 4. Before making them seem like a single...
User Guide
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... but MDI-II (medium-dependent interface, uncrossed). Interconnecting Two 10BASE-T Hubs With two DFE-904 units working at 10 Mbps and you will connect the DFE-904 to make connections as hub B. 11 Multi-hub Ethernet Network If all your end nodes will access the network at 10 Mbps uplinked together, you have been met. Before making end node...
... but MDI-II (medium-dependent interface, uncrossed). Interconnecting Two 10BASE-T Hubs With two DFE-904 units working at 10 Mbps and you will connect the DFE-904 to make connections as hub B. 11 Multi-hub Ethernet Network If all your end nodes will access the network at 10 Mbps uplinked together, you have been met. Before making end node...
User Guide
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.... This jack must leave hub B's Uplink jack unused. Connect end nodes to a 10-Mbps network, connect them between hubs A and B. Connecting Additional Hubs To add a third and a fourth hub to the hubs as you would use all connections are interconnecting only two hubs, you can use for 10 Mbps. 3. Set both hubs have interconnected four 10-Mbps hubs, any jack except...
.... This jack must leave hub B's Uplink jack unused. Connect end nodes to a 10-Mbps network, connect them between hubs A and B. Connecting Additional Hubs To add a third and a fourth hub to the hubs as you would use all connections are interconnecting only two hubs, you can use for 10 Mbps. 3. Set both hubs have interconnected four 10-Mbps hubs, any jack except...
User Guide
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In addition to another 100BASE-TX Class II Fast Ethernet hub. This is shown in the following illustration shows a maximum-extent 10-Mbps network created with DFE-904 units. will be more than 205 meters (672.4 feet) of cabling between any two end nodes. Two-hub Fast Ethernet Network When set for 100-Mbps operation, the DFE-904 can have a single uplink connection to the 100-meter (328-foot) absolute limit on the length of any single cable, there must not be no more than three uplink connections between any two end nodes. The following illustration. 13
In addition to another 100BASE-TX Class II Fast Ethernet hub. This is shown in the following illustration shows a maximum-extent 10-Mbps network created with DFE-904 units. will be more than 205 meters (672.4 feet) of cabling between any two end nodes. Two-hub Fast Ethernet Network When set for 100-Mbps operation, the DFE-904 can have a single uplink connection to the 100-meter (328-foot) absolute limit on the length of any single cable, there must not be no more than three uplink connections between any two end nodes. The following illustration. 13
User Guide
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...100-Mbps Fast Ethernet network with no uplink connection (that is, just the DFE-904 and four end nodes), every cable can be up to the hub. Make sure all connections can be up to direct sunlight, strong magnetic fields, excessive moisture, very dusty air, extreme heat or cold, or rapid temperature changes. On a 10...of 200 meters (656 feet). - If hubs are uplinked together, there can mount the DFE-904 on a desk, table, or other firm horizontal surface, or on a vertical surface such as a wall or the side of a desk. On a 100-Mbps Fast Ethernet network with an uplink connection...
...100-Mbps Fast Ethernet network with no uplink connection (that is, just the DFE-904 and four end nodes), every cable can be up to the hub. Make sure all connections can be up to direct sunlight, strong magnetic fields, excessive moisture, very dusty air, extreme heat or cold, or rapid temperature changes. On a 10...of 200 meters (656 feet). - If hubs are uplinked together, there can mount the DFE-904 on a desk, table, or other firm horizontal surface, or on a vertical surface such as a wall or the side of a desk. On a 100-Mbps Fast Ethernet network with an uplink connection...
User Guide
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...will need a drill, a drill bit suitable for desktop or tabletop mounting as follows: 1. Horizontal Mounting Prepare the hub for the supplied wall anchors, and a hammer. Then set the hub in the hub's base. 15 Note the arrangement of the mounting holes in place and make sure nothing will not easily rock...it will press against the air inlets or the fan outlet. Make sure the hub's bottom surface is clean. 2. Attach the feet to help keep dust off the contacts. If the surface does not already have end nodes connected through 100-meter-long cables, the uplink cable cannot be more than...
...will need a drill, a drill bit suitable for desktop or tabletop mounting as follows: 1. Horizontal Mounting Prepare the hub for the supplied wall anchors, and a hammer. Then set the hub in the hub's base. 15 Note the arrangement of the mounting holes in place and make sure nothing will not easily rock...it will press against the air inlets or the fan outlet. Make sure the hub's bottom surface is clean. 2. Attach the feet to help keep dust off the contacts. If the surface does not already have end nodes connected through 100-meter-long cables, the uplink cable cannot be more than...
User Guide
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... hole positions are 65m (2.56 in.) apart, at the corners of an imaginary rectangle with sides 53 mm and 37 mm (2.1 in. To mount the hub, position it so the screwheads enter the holes in the mounting surface. 4. Drive the supplied screws most of the way into the holes in its... and 1.46 in the corresponding positions on the mounting surface. Drill holes in .) long. 2. Let the screwheads protrude enough to enter the holes in the hub's base. These holes' centers are reversed as in a mirror image when the...
... hole positions are 65m (2.56 in.) apart, at the corners of an imaginary rectangle with sides 53 mm and 37 mm (2.1 in. To mount the hub, position it so the screwheads enter the holes in the mounting surface. 4. Drive the supplied screws most of the way into the holes in its... and 1.46 in the corresponding positions on the mounting surface. Drill holes in .) long. 2. Let the screwheads protrude enough to enter the holes in the hub's base. These holes' centers are reversed as in a mirror image when the...
User Guide
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...indicator for the hub's DC power jack. When power is set to make sure that the power adapter is designed for the line voltage and the kind of barrel connector for the currently selected speed will access the network; - When certain that - - Powering Up The DFE-904 and connected ...devices can be ready. 17 After a few seconds the Collision indicator will go out and the hub will be powered up in your computer equipment ...
...indicator for the hub's DC power jack. When power is set to make sure that the power adapter is designed for the line voltage and the kind of barrel connector for the currently selected speed will access the network; - When certain that - - Powering Up The DFE-904 and connected ...devices can be ready. 17 After a few seconds the Collision indicator will go out and the hub will be powered up in your computer equipment ...
