Linksys EFAH08W manuale d’uso

Instant EtherFast ® Series EtherF ast 10/100 Auto-Sensing Hubs Use this guide to install these Linksys pr oducts : EtherFast 10/100 5-P or t Hub (EF AH05W) EtherFast 10/100 8-P or t Hub (EF AH08W) EtherFast 10/100 16-P or t Hub (EF AH16W) User Guide EtherFast 10/100 16-P or t Rack Mountable Hub (EF AH16) EtherFast 10/100 24-P or t Rack Mountable H[...]

COPYRIGHT & TRADEMARKS Cop yright © 1998 Linksys, All Rights Reser ved. Instant EtherF ast is a registered trade- mark of Linksys. Microsoft, Windo ws, and the Windows logo are registered trademarks of Microsoft Cor poration. All other trademarks and brand names are the proper ty of their respective proprietors. LIMITED W ARRANTY Linksys guara[...]

Contents Introduction 2 About F ast Ethernet 3 Planning Y our Network 4 Installing the Hub 5 LED Indicators 6 Optional Fiber Optic Expansion Modules 7 Mounting the Hub 7 Connecting Nodes to the Hub 7 Uplinking the Hub 8 Uplinking the 5-P or t Hub 9 P ow ering On and Resetting the Hub 10 Appendix T wisted P air Cab ling 11 Installing Add-On Modules [...]

Intr oduction The EtherF ast 10/100 Auto-Sensing series of hubs from Linksys is the fastest, most economical wa y to build or expand an enterprise 100Mbps netw ork! Ready to r un right out of the box, each 10/100 hub lets you con- nect computers or other nodes together in seconds, with auto-sensing ports that automatically adjust to either 10Mbps o[...]

About Fast Ethernet As the demand for desktop video, multimedia dev elopment, imaging, and other speed-intensiv e applications continues to rise, the need for high per- formance, f ault tolerant LAN technology will become more critical. Standard Ethernet , w hich has been the most popular netw orking technolo- gy to date with a maximum data through[...]

Planning Y our Network The rules that go vern ho w nodes and hubs are distributed across a netw ork are important to ensure the integ rity of your data. Cab ling specif ications, distance limits, and other topology rules must be follo wed in order to a void collisions or data loss. The Auto-Sensing Hub is equipped with RJ-45 ports that can automati[...]

Installing the Hub Carefully remo ve the hub from its packaging. Mak e sure that you receiv ed all of the items listed belo w . If an y items are missing or damaged , contact your Linksys dealer for replacement part(s). · EtherF ast 10/100 Auto-Sensing Hub · A C Po w er Adapter and/or a P ow er Cord , (with rackmount models) · User Guide and Reg[...]

LED Indicators P ower Indicates that the hub is recei ving po wer . 100/10 Col Indicates if collisions are being encountered at 100Mbps and/or 10Mbps. Some collisions are normal. If your netw ork seems to be experienc- ing high collision lev els, verify that your cabling is good , and that there are no cabling coils, cross-o vers, or breaks. 100 ON[...]

Optional Fiber Optic Expansion Module The Auto-Sensing 16 and 24-P or t rack mountable hubs each come with a f iber optic expansion slot w hich accepts an optional 100BaseFX f iber optic module for connecting to high-speed f iber cabling. If y ou purchased an optional f iber optic expansion module, set it up b y follo wing the setup instructions in[...]

Connecting the A uto-Sensing Hubs to Other Hubs, Switches, or Routers Like most hubs, the Auto-Sensing Hubs can be uplinked to 10Mbps or 100Mbps hubs, stackable hubs, s witches, or routers. The front of each hub has an Uplink port for this pur pose. If you are connecting the hub to a F ast Ether net hub, router , or switch, remember that F ast Ethe[...]

Uplinking the 5-P or t Hub The EtherF ast 5-P or t Auto-Sensing Hub has a special switched uplink port with it’ s own distance e xtension capabilities. If you are mixing 10Mbps and 100Mbps hardware on y our 5-Port hub, the hub can be uplinked to other 100Mbps hubs at a distance of 5 meters (16.4 feet) -- just like other hubs. Ho we ver , if all p[...]

P owering On the Hub Desktop Model The hub comes with both a po wer adapter and in some instances, an A C electrical cord. Plug the po wer adapter’ s plug into the hub’ s po wer jack. Plug the pro vided AC electrical cord into the po w er adapter . Finall y , plug the other end of the electrical cord into a standard A C electrical outlet. The h[...]

Appendix T wisted P air Cabling There are different grades, or categories, of twisted-pair cab ling. Categor y 5 is the most reliable and widel y compatible, and is required for F ast Ethernet. Y ou can buy Category 5 cabling that is pre-made, or y ou can cut and crimp your o wn. Category 5 cables can be purchased or crimped as either straight-thro[...]

12 How T o Install An Add-On Module F ollo w the follo wing steps to install the add-on modules in the EtherF ast 10/100 Auto-Sensing Hub ( EF AH16 or EF AH24 ). 1. P ow er off the hub and remo ve the AC po w er cord from the hub . 2. Remo ve all RJ-45 cables from the all the ports in the hub and if the hub is on a rack remo ve the hub from the rac[...]

Fiber Optic Modules Six different F iber Optic modules are av ailable for the rack mountable Auto-Sensing hubs (EF AH16 and EF AH24): FFOSC1 : 100BaseFX 1-P or t Transcei ver Module (SC) FFOSC2 : 100BaseFX 2-P or t Transcei ver Module (SC) FFOST1 : 100BaseFX 1-P or t Transcei ver Module (ST) FFOST2 : 100BaseFX 2-P or t Transcei ver Module (ST) FFOS[...]

A maximum of 2 T ransceivers can be connected to gether in one segment. When tw o hubs are connected via T ransceivers to gether, the same rule of cascading tw o 100Mb hubs applies to them. T o cascade another hub to these tw o hubs (using RJ-45), a switch or repeater must be used. The Distance Extender is a switched port . This means another 100Mb[...]

The follo wing illustration is an example of ho w to connect four Rack Mountable EtherF ast 10/100 Auto-Sensing hubs together using f iber optic cabling. Notice that the hubs at the top and the bottom are equipped with 100BaseFX 1-P or t Distance Extender modules, while the tw o hubs in the middle ha ve 100BaseFX 2- P or t Trancei ver Modules. The [...]

16 100BaseTX Distance Extender Module This module has a special distance extending port that sends data at 100Mbps o ver regular 100BaseTX Cate gory 5 cabling. The distance exten- der module sends your data up to 100 meter s (328 feet). This module is ideal for connecting to f ile ser vers or uplinking to remote hubs. This module is a vailable for [...]

The follo wing illustration is an example of ho w to connect four EtherF ast 10/100 Auto-Sensing hubs together using the Single-P ort 100BaseTX Distance Extender Module. Note that, without the distance extender mod- ule, the maximum distance betw een two uplinked hubs is 5 meters (16.4 feet). W ith the distance extender module installed on one of t[...]

Specifications Models EF AH05W EF AH08W EF AH16W EF AH16 EF AH24 Standards IEEE 802.3 IEEE 802.3u Po r t s 5, 8, 16, or 24, depending on model; 16 and 24-P or t models each also include tw o 100BaseFX f iber optic expansion slots; All hubs ha ve built-in shared uplink por t Speed Each port r uns at 10Mbps or 100Mbps, independent of other ports’ s[...]

Customer Support F or help with the installation or operation of your EtherF ast 10/100 Auto- Sensing Hub, contact Linksys Customer Support at one of the phone num- bers or Internet addresses below . Customer Support 949-261-1288 F ax 949-261-8868 Bulletin Board 949-261-2888 (33.6K, 8-N-1) E-mail support@linksys.com W eb http://www .linksys.com FTP[...]

© Cop yr ight 1999 Linksys, All Rights Reser v ed. Printed in the USA. http://www .linksys.com[...]