User manual LINKSYS EFAH24

[. . . ] Instant EtherFast® Series EtherFast 10/100 Auto-Sensing Hubs Use this guide to install these Linksys products: EtherFast 10/100 5-Port Hub (EFAH05W) EtherFast 10/100 8-Port Hub (EFAH08W) EtherFast 10/100 16-Port Hub (EFAH16W) EtherFast 10/100 16-Port Rack Mountable Hub (EFAH16) EtherFast 10/100 24-Port Rack Mountable Hub (EFAH24) User Guide COPYRIGHT & TRADEMARKS Copyright © 1998 Linksys, All Rights Reserved. Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation. All other trademarks and brand names are the property of their respective proprietors. LIMITED WARRANTY Linksys guarantees that every EtherFast 10/100 Auto-Sensing Hub (Workgroup Models: 5, 8, and 16-Port; Rackmount Models: 16 and 24-Port) is free from physical defects in material and workmanship under normal use for five (5) years from the date of purchase. [. . . ] Ready-touse network cables of various lengths can be purchased at most computer stores. If you wish to crimp your own cabling for custom sites or lengths, see page 11 for cabling specifications. When connecting a PC to a hub, either the computer or the hub must be powered OFF. If both the computer and the hub are turned on while the connection is completed, the network will act erratically and you must reset the hub (see page 10). If the Uplink port is in use (connected to another hub, etc. ), the AutoSensing Hub's last port next to the Uplink port must remain empty and unused. As in most hubs, the Auto-Sensing Hub's Uplink port and the port adjacent to it are joined together inside the hub, and one cannot be used while the other is in use. Finally, plug the other end of the electrical cord into a standard AC electrical outlet. The hub will put itself through a series of diagnostic tests -- which shouldn't take more than just a few seconds -- then begin scanning the ports for live nodes. Rack Mountable Model To power on the hub, plug the supplied AC electrical power cord into the back of the hub. The hub will put itself through a series of diagnostic tests -- which shouldn't take more than just a few seconds -then begin scanning the ports for live nodes. The installation is complete. Resetting the Hub To reset the hub, turn the unit off for at least three seconds and then turn it back on. If you have a rack mountable model, you can use the reset button in the back of the hub to run the reset power cycle. Use a small screwdriver or other pointy object that can fit through the hole on the back of the unit and reach the button. Note: If you power cycle the hub or hold down the reset button for too long, you may lose some connections. 10 Appendix Twisted Pair Cabling There are different grades, or categories, of twisted-pair cabling. Category 5 is the most reliable and widely compatible, and is required for Fast Ethernet. You can buy Category 5 cabling that is pre-made, or you can cut and crimp your own. Category 5 cables can be purchased or crimped as either straight-through or crossed. A Category 5 cable has 8 thin, color-coded wires inside that run from one end of the cable to the other. In a straight-through cable, wires 1, 2, 3, and 6 at one end of the cable are also wires 1, 2, 3, and 6 at the other end. In a crossed cable, the order of the wires change from one end to the other: wire 1 becomes 3, and 2 becomes 6 and vice versa. The color code for the 4 wires should be as follows: Wire 1, white with an orange stripe; Wire 2, orange; Wire 3, white with a green stripe; Wire 6, green. The other four wires have to be connected as follows: Wire 4, blue; Wire 5, white with a blue stripe; Wire7, white with a brown stripe, Wire 8, brown. [. . . ] The following table shows the distance limitation when connecting the Linksys Fiber modules: Distance (meters/ft) Cable type Module in Hub A Module in hub B 16/50 Multi-Mode 62. 5/125uM Fiber Optic Cable FFOSC1 or FFOSC2, FFOST1 or FFOST2 SC or ST Type 100BaseFX Fiber Transceiver Module FFOSC1 or FFOSC2, FFOST1 or FFOST2 SC or ST Type 100BaseFX Fiber Transceiver Module FFOSCDE1 or FFOSTDE1 SC or ST Type Fiber Distance Extender FFOSC1 or FFOSC2, FFOST1 or FFOST2 SC Type 100BaseFX Fiber Transceiver FFOSCDE1, FFOSTDE1 SC or ST Type Fiber Distance Extender 208/672 Multi-Mode 62. 5/125uM Fiber Optic Cable 412/1330 (Half Duplex) Multi-Mode 62. 5/125uM Fiber Optic Cable FFOSCDE1, FFOSTDE1 SC or ST Type Fiber Distance Extender 14 The following illustration is an example of how to connect four Rack Mountable EtherFast 10/100 Auto-Sensing hubs together using fiber optic cabling. Notice that the hubs at the top and the bottom are equipped with 100BaseFX 1-Port Distance Extender modules, while the two hubs in the middle have 100BaseFX 2Port Tranceiver Modules. The distance extender modules allow data to be sent up to 208 meters (672 feet). The distance between the two hubs with tranceiver modules is limited to a maximum of 16 meters (50 feet). [. . . ]