At 9:40 AM -0700 1/8/2003, J Sand wrote: >Am I correct that in a networking hub, a standard CAT-5 cable is used >through all the units connected to the hub and the hub takes care of the >transmission/receiving crossovers needed for communication between >computers.
It depends on the hub. A standard port connects to a computer or printer via a straight through cable. Many hubs and switches have an uplink port that is used to connect to another hub or switch. It is connected to a standard port on the other hub or switch via a straight through cable. It doesn't matter which device is used for the uplink port so it could be that what you perceive as an upper level hub might use it's uplink port to connect to a lower level device. "Uplink" is a convenient term but not entirely accurate. The uplink port on a device is usually a standard port that is wired like a crossover cable so a straight cable may be used. The standard ports on a hub/switch are known as MDI and uplink ports are MDI-X. You can think of computers, printers and such as having MDI-X ports. You connect an MDI port to a MDI-X port via a straight through cable. You use a crossover cable to connect two MDI ports together or to connect two MDI-X ports together. Each port (of either kind) has a pair of wires that is transmitting data and one for receiving data. The transmit pair needs to connect to the receiving pair on the other device and vice-versa. Some newer NICs do auto-sensing of transmit / receive. -- Clark Martin Redwood City, CA, USA Macintosh / Internet Consulting [EMAIL PROTECTED] "I'm a designated driver on the Information Super Highway" -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
