User manual NETGEAR EN108 INSTALL GUIDE

[. . . ] 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 EN104 hub, port 8 on the Model EN108 hub, or port 16 on the Model EN116 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. Model EN104/EN108/EN116 Ethernet Hub Installation Guide Rear Panel The rear panel of the hub has a BNC port that you can use to connect to a backbone network or other PCs using thin coaxial cable. The rear panel of the Model EN108 hub and the Model EN116 hub also has an AUI port in addition to the BNC port. [. . . ] Use the following table as a guide for selecting the appropriate network cable. Connecting Port on the Hub Model EN104 hub: Ports 1­3 Ports 1­3 Model EN108 hub: Ports 1­7 Ports 1­7 Model EN116 hub: Ports 1­15 Ports 1­15 PC, server, or router Hub or switch Straight-through cable Crossover cable 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 Set the Normal/Uplink Push Button If you are connecting to port 4 on the Model EN104 hub, port 8 on the Model EN108 hub, or port 16 on the Model EN116 hub, use the following table. Determine the type of cable to use and how to set the Normal/Uplink push button. Connecting Port Connecting Device Cable Used Straight-through cable Straight-through cable Port 4, port 8, or port 16 set to PC, server, or router Normal Port 4, port 8, or port 16 set to Hub or switch Uplink Model EN104/EN108/EN116 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. Hub 1 10 BASE-T HUB Pwr Col EN116 LINK Rx 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Normal Hub 2 10 BASE-T HUB 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 Hub 4 Uplink Hub 5 Uplink A B 8735FA 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. The following illustration shows cascading hubs together daisy-chain style and indicates the setting of the Normal/Uplink push button on each hub. Model EN104 hub 10 BASE-T HUB EN104 LINK Rx Pwr Col Normal Model EN108 hub 10 BASE-T HUB Pwr Col EN108 LINK Rx 1 2 3 4 5 6 7 8 Uplink Model EN116 hub 10 BASE-T HUB Pwr Col EN116 LINK Rx 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Uplink 8733FA Model EN104/EN108/EN116 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 EN104/EN108/EN116 hubs, servers, workstations, or other devices to the BNC port. A BNC-T connector is inserted in the port, and the 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 this illustration represent the incorporation of other devices and show that interconnection is not limited to hubs. BNC T- connector Model EN104 hub BNC 50 terminator Model EN108 hub Model EN116 hub BNC 50 terminator 8736FA 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 EN104/EN108/EN116 Ethernet Hub Installation Guide Connect to a Network Using the AUI Port The AUI port on the rear panel (found only on the Model EN108 hub and the Model EN116 hub) is normally used for connecting a thick coaxial segment. 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. 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 that each segment is terminated with a BNC 50 terminator at both ends. Check for a bad cable. Green Link LED The port is not is off when a detecting a cable is attached. Green Link LED is not blinking when there is data transmission. The port is not detecting data transmission. Green Active The port is not LED on the BNC detecting a port is not on successful link. The port is not Green Rx LED on the BNC port detecting data transmission. is not blinking when there is data transmission. Green Active LED on the AUI port is not on when the port is connected. The port is not detecting a successful link. Check for a bad cable or loose connectors. Make sure that there is power to both the hub and the connected device. Make sure that the AUI transceiver is functioning properly, the coaxial segment is terminated correctly, the segment is not disconnected along the cable length, and the signal quality error (SQE) test on the transceiver is disabled. [. . . ] Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right to test the series for compliance with the regulations. Voluntary Control Council for Interference (VCCI) Statement This equipment is in the first category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines that are aimed at preventing radio interference in commercial and/ or industrial areas. Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be caused to equipment such as radios and TV receivers. Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. 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. [. . . ]