User manual NETGEAR EN308TC INSTALLATION GUIDE

[. . . ] The port is partitioned because of excessive collisions. Amber Part (Located in the top right corner of each 10BASE-T port) Model EN308TC Ethernet Hub Installation Guide Normal/Uplink Push Button for Port 8 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 another hub or to a switch through port 8 on the Model EN308TC 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. Installation Procedures Installation Procedures 1. [. . . ] 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 8, are MDI-X (or Normal) ports. Use the following table as a guide for selecting the appropriate network cable. Connecting Port on the Hub Ports 1­7 Ports 1­7 Connecting Device PC, server, or router Hub or switch Cable Used Straight-through cable Crossover cable Set the Normal/Uplink Push Button If you are connecting to port 8 on the Model EN308TC hub, use the following table. Determine the type of cable to use and how to set the Normal/Uplink push button. Connecting Port Port 8 set to Normal Port 8 set to Uplink Connecting Device PC, server, or router Hub or switch Cable Used Straight-through cable Straight-through cable Model EN308TC Ethernet Hub Installation Guide Cascade the Hub Using the 10BASE-T Ports 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 EN308TC hub 1 Normal 100M Normal/Uplink 10M On = Link Blinking = Activity BNC 8 7 6 5 4 3 2 1 100-240 VAC, 50-60Hz 0. 2A max. Model EN108 hub 2 10 BASE-T HUB Model EN108 hub 3 10 BASE-T HUB Pwr Col EN108TP Pwr EN108TP 1 2 3 4 5 6 7 8 Uplink Col 1 2 3 4 5 6 7 8 Uplink Model EN104 hub 4 Uplink 5 Model EN104 hub Uplink A B 9122FA 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). The following illustration shows cascading Model EN308TC hubs together daisy-chain style. Refer to the illustration for setting the Normal/Uplink push button on each hub. 100M 10M On = Link Blinking = Activity Normal Normal/Uplink BNC 8 7 6 5 4 3 2 1 100-240 VAC, 50-60Hz 0. 2A max. 100M 10M On = Link Blinking = Activity Uplink Normal/Uplink BNC 8 7 6 5 4 3 2 1 100-240 VAC, 50-60Hz 0. 2A max. 100M 10M On = Link Blinking = Activity Uplink Normal/Uplink BNC 8 7 6 5 4 3 2 1 100-240 VAC, 50-60Hz 0. 2A max. 9123FA Model EN308TC Ethernet Hub Installation Guide Connect to a Network Using the BNC Port The BNC port on the rear panel of the hub is used for connecting to a thin coaxial segment. You can connect other Model EN308TC hubs, servers, workstations, or other devices to the BNC port. A BNC T- connector is inserted in the port, and the BNC 50 terminator terminates the connection at each end device. By using the BNC port for cascading, you treat each connected hub as just another node on the coaxial segment. The separation marks in the coaxial cable between the hubs in the following illustration represent the incorporation of other devices and show that interconnection is not limited to hubs. BNC T- connector Normal /Uplink 1 2 3 BNC 50 terminator Normal /Uplink 4 5 6 7 8 1 2 3 4 5 6 7 8 Normal /Uplink 1 2 3 4 5 6 7 8 BNC 50 terminator 9124FA Note: Ethernet specifications limit a BNC segment to 30 BNC connections, specify a minimum of 1. 64 feet (0. 5 m) between any two stations, and limit segments to 607 feet (185 m) in length. Model EN308TC Ethernet Hub Installation Guide 5. Verify the Installation 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/Receive LED on each connected port is on. If there are any problems, refer to "Troubleshooting Information. " Refer to the troubleshooting table and the information that follows to troubleshoot your hub. 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 hub 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 the Support Information Card included in your package contents. Model EN308TC Ethernet Hub Installation Guide Troubleshooting Information Troubleshooting Information Symptom Amber Col LED blinks. Amber Col LED blinks excessively. Cause Solution There is data collision Data collision is normal on Ethernet networks. The crossover function is usually implemented internally as part of the circuitry in the device. Most ports on switches and repeaters have media dependent interfaces with crossover ports. [. . . ] These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense. [. . . ]