Start Here Congratulations on your purchase of the NETGEARTM Model EN104TP, Model EN106TP, or Model EN108TP Ethernet hub. The hubs deliver standards-based, plug-and-play networking solutions for small businesses, home offices, and lowdensity workgroups of larger companies. In this installation guide, all three hubs are referred to collectively as the Model EN104TP/EN106TP/EN108TP hub. Each hub is listed individually when information is provided that refers to a specific model. Features The Model EN104TP/EN106TP/EN108TP hub has the following features: · Four (on the Model EN104TP hub), six (on the Model EN106TP hub), and eight (on the Model EN108TP hub) vista 10BASE-T network ports (RJ-45) that provide 10 megabit per second (Mbps) networking using simple unshielded twisted pair (UTP) wiring Built-in LED indicators for at-a-glance status checks provided by vista network ports Uplink port for connecting to other hubs using simple straight-through cables Clear front-panel light-emitting diode (LED) indicators to monitor overall hub status Plug-and-play installation with no software to configure Complete hub functions including packet retiming, collision detection, preamble regeneration, and fragment extension Automatic partitioning and reconnection of a port that has excessive collisions or is jabbering Automatic polarity detection for recognizing and correcting incorrect polarity on the receive pair Compact design, enabling easy tabletop or rack-mounting installation External power adapter Limited five-year warranty on the unit and one-year warranty on the power supply · · · · · · · · · · Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Package Contents Model EN104TP hub Model EN106TP hub EN106TP Link/Rx Partition 10 BASE-T HUB or Pwr Col or Pwr Col Model EN108TP hub 10 BASE-T HUB EN104TP 10 BASE-T HUB EN108TP Normal/Uplink 1 2 3 4 5 6 1 2 3 4 5 6 7 8 Mounting kit Power adapter and cord Installation guide, Warranty & Owner Registration Card 8722FA Verify that your package contains the following: · · · · · Model EN104TP hub, Model EN106TP hub, or Model EN108TP hub Mounting kit (for wall installation) This installation guide Warranty & Owner Registration Card Power adapter Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Product Illustration Front Panel of the Model EN104TP hub 10BASE-T ports Pwr (Power) Col (Collision) 10 BASE-T HUB EN104TP LINK Rx Pwr Col Normal/Uplink push button Front Panel of the Model EN106TP hub 10 BASE-T HUB EN106TP Pwr Col LINK Rx Normal/Uplink 1 2 3 4 5 6 Front Panel of the Model EN108TP hub 10 BASE-T HUB Pwr Col EN108TP LINK Rx 1 2 3 4 5 6 7 8 8723FA Vista 10BASE-T Network Ports with Built-in LEDs The front panel of the Model EN104TP hub has four RJ-45 10BASE-T ports, the Model EN106TP hub has six RJ-45 10BASE-T ports, and the Model EN108TP hub has eight RJ-45 10BASE-T ports. Two LEDs--the Link LED and the Rx LED--are built into each 10BASE-T port. Link LED Rx LED 8724EA Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide LEDs The table below describes the activity of the LEDs. Label Pwr (Power) Col (collision) Color Green Amber Activity Description On Power is supplied to the hub. Blinking Data collision is occurring on the network. Note that occasional collisions are normal. On The link between this port and the connected device is good. Green Link (located on the top left corner of each vista 10BASE-T port) Rx (located on the top right corner of each vista 10BASE-T port) Green Blinking There is incoming data on the port. Normal/Uplink Push Button The Normal/Uplink push button allows you to select Normal (MDI-X) wiring for direct PC connection. The push button also allows you to select Uplink (MDI) wiring for connection to a hub or a switch through port 4 on the Model EN104TP hub, port 6 on the Model EN106TP hub, or port 8 on the Model EN108TP hub. This uplink configuration eliminates the need to use a crossover cable. The other 10BASE-T ports are permanently configured for normal wiring for connection to a PC. Rear Panel The rear panel of the hub has a ground clip and a receptacle for the power adapter. Power receptacle 5Vdc 800mA ­ + 8730FA Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Installation Procedures Prepare the Site Before you begin installing your hub, prepare the installation site. Make sure your operating environment meets the operating environment requirements of the equipment. Characteristic Temperature Requirement Ambient temperature between 0° and 40° C (32° and 104° F). No nearby heat sources such as direct sunlight, warm air exhausts, or heaters. Maximum relative humidity of 90%, noncondensing. Minimum 2 inches (5.08 cm) on all sides for cooling. Adequate airflow in room or wiring closet. At least 6 feet (1.83 m) to nearest source of electromagnetic noise (such as photocopy machine or arc welder). Minimum 12 inches (19.68 cm) front and back for service access and maintenance. Front and back clearance for cables and wiring hardware such as punchdown blocks. Adequate power source within 6 feet (1.83 m). Wiring hardware, such as punchdown blocks or patch panels, should be complete before installing the hub. Operating humidity Ventilation Operating conditions Service access Power Wiring hardware Install the Hub To install your hub on a flat surface, you do not need any special tools. Be sure the hub is positioned with at least 2 inches of space on all sides for ventilation. To install the hub on a wall, measure the distance between the mounting holes on the back of the hub and mark the wall to match the location of the mounting holes on the hub. At the marked location, screw into the wall the two screws that you received with the mounting kit included in your package contents. Be sure to choose a location that is near the devices to be connected, is close to an electrical outlet, and provides at least 2 inches of space all around the hub for ventilation. Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Connect a PC to the Hub You can connect PCs, Apple Macintosh computers, UNIX workstations, or any device equipped with a 10BASE-T Ethernet interface to the RJ-45 ports on your hub by using twisted pair Ethernet cables. To connect any of the RJ-45 ports on your hub to a PC, use a regular straight-through UTP cable. If you are connecting using port 4 on the Model EN104TP hub, port 6 on the Model EN106TP hub, or port 8 on the Model EN108TP hub, set the Normal/Uplink push button to Normal. (The Model EN106TP hub is shown in the illustration.) Pwr Col 1 2 3 4 5 6 Normal/Up link 8726FA Note: Ethernet specifications limit the cable length between your PC or server and the hub to 328 feet (100 meters) in length. Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Connect the Hub to a Network Cascading refers to connecting hubs together to increase the number of ports or the number of users supported on the network. The 10BASE-T ports can be used to cascade hubs together. The twisted pair cable extended from a 10BASE-T port (or UTP port) is called a twisted pair segment and can be up to 100 meters (m) in length. The 10BASE-T ports, with the exception of port 4 on the Model EN104TP hub, port 6 on the Model EN106TP hub, or port 8 on the Model EN108TP hub, are MDI-X (or Normal) ports. Use the following table as a guide for selecting the appropriate network cable. Connecting Port on the Hub Model EN104TP hub: Ports 1­3 Ports 1­3 Model EN106TP hub: Ports 1­5 Ports 1­5 Model EN108TP hub: Ports 1­7 Ports 1­7 PC, server, or router Hub or switch Straight-through cable Crossover cable PC, server, or router Hub or switch Straight-through cable Crossover cable Connecting Device Cable Used PC, server, or router Hub or switch Straight-through cable Crossover cable Set the Normal/Uplink Push Button If you are connecting to port 4 on the Model EN104TP hub, port 6 on the Model EN106TP hub, or port 8 on the Model EN108TP hub, use the following table. Determine the type of cable to use and how to set the Normal/Uplink push button for port 4, port 6, or port 8. Connecting Port Port 4, port 6, or port 8 set to Normal Port 4, port 6, or port 8 set to Uplink Connecting Device PC, server, or router Hub or switch Cable Used Straight-through cable Straight-through cable Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Cascade the Hub The following illustration shows cascading hubs together in a hierarchical star through the 10BASE-T ports and indicates the setting of the Normal/Uplink push button on each hub. Model EN108TP hub 10 BASE-T HUB Pwr Col EN108TP 1 2 3 4 5 6 7 8 Normal Model EN106TP hub Model EN108TP hub 10 BASE-T HUB Pwr Col EN108TP Pwr 10 BASE-T HUB EN106TP Link/Rx Partition 1 2 3 4 5 6 7 8 Uplink Normal/Uplink Col 1 2 3 4 5 6 Uplink Model EN104TP hubs Uplink Uplink A B 8727FA Note: Ethernet specifications limit the number of hubs with twisted pair links in any communication path to five, as shown in the example. When PC "A" communicates with PC "B," the communication path goes from hub 4 to hub 2, to hub 1, to hub 3, and then to hub 5 (or five paths). Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide The following illustration shows cascading hubs together daisy-chain style and indicates the setting of the Normal/Uplink push button on each hub. Model EN104TP hub 10 BASE-T HUB EN104TP Normal Model EN106TP hub 10 BASE-T HUB EN106TP Link/Rx Partition Pwr Col Normal/Uplink 1 2 3 4 5 6 Uplink Model EN108TP hub 10 BASE-T HUB Pwr Col EN108TP 1 2 3 4 5 6 7 8 Uplink 8728FA Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Verify the Installation To complete the installation, connect the power cord first to the power receptacle on the hub rear panel and then to the power outlet on the wall. When power has been applied to the hub: · · The green Pwr (Power) LED on the front panel is on. The green Link LED on each connected port is on. If there are any problems, refer to "Troubleshooting Information." Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Troubleshooting Information Refer to this table and the information that follows the table to troubleshoot your hub. Symptom Amber Col LED blinks. Amber Col LED blinks excessively. Cause There is data collision on the network. Solution Data collision is normal on Ethernet networks. No action is required. There is data collision Make sure connected devices are operating in half-duplex mode. The hub on the network because the network is is not compatible with devices that operate in full-duplex mode. extremely busy or If you suspect that there might be a defective devices are defective device on the network, connected on the disconnect devices one at a time to network that cannot detect network traffic or isolate the defective unit on the network. If the network is extremely busy, you may collision. have to segment the network with an Ethernet switch such as a NETGEAR Ethernet switch or to upgrade your network to Fast Ethernet operation. Wrong or miswired cables are used. Make sure the correct UTP cables are used. See the table in the installation section of this guide for cable use and Normal/Uplink push button information. Note that home telephone cables can cause a collision condition and cannot be used in place of UTP cables. Check for a bad cable, cable pairs that are not correctly wired, or loose connectors. Make sure that there is power to both the hub and the Ethernet transceiver on the connected device. Make sure the port has not been partitioned. Check for a bad cable, cable pairs that are not correctly wired, or loose connectors. Make sure that there is power to both the hub and the Ethernet transceiver on the connected device. Make sure the port has not been partitioned. Green Link LED is The port is not off when a cable is detecting a successful link. attached. Green Rx is off when there is data transmission. The port is not detecting data transmission. Network Interface Cards Make sure the network interface cards installed in the workstations are in working condition and the software driver has been installed. Hub Integrity If required, verify the integrity of the hub by resetting it. Turn power to the switch off and then back on. If the problem continues and you have completed all the preceding diagnoses, contact NETGEAR Customer Support. For the phone number of the representative in your area, see "Customer Support." Model EN104TP/EN106 TP/EN108TP Ethernet Hub Installation Guide Technical Specifications Cable and Connector Information Twisted Pair Cables For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry ...