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To: mmeggs who wrote (3236)	8/13/1998 12:48:00 PM
From: Marion F. Evans	Read Replies (1) \| Respond to of 11568

the answer to the question <Anyone know if the transmission speed of cable out does that of fiber?> Fiber has a higher theoretical (sic) bandwidth than any copper medium including Coax Cable. It is an electrical latency problem. When introducing a voltage to a piece of copper it takes a set amount of time for the copper to charge up to the proper voltage and when the current is reversed to provide a negative voltage there is a set amount of time that it takes for the voltage to return to zero and then reverse itself to move toward the negative voltage level. This latency problem is not (or at least significantly reduced) in fiberoptic systems using glass and lasers. theoretically any combination of colors can move down a piece of fiber without significant interference with each other. (example being Dense Wave Division Multiplexing systems) There can only exist one voltage on a piece of copper at any one moment in time. I prefer the analogy of the 22-24 gauge copper pairs to your house as a straw carrying water the Coax of DS3's (45Mbps) as a large sewer pipe or water main Fiber would be the Mississippi River with the ability to flood the banks and continue flowing. Just my $.02 worth. Marion