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Technology Stocks : Cisco Systems, Inc. (CSCO) -- Ignore unavailable to you. Want to Upgrade?

To: Bindusagar Reddy who wrote (15816)	8/6/1998 3:06:00 AM
From: chitchat	Respond to of 77400

There are several possible topologies one can think off. Dont know what the market wants or cost of large scale installation. here are the possibilities. 1) Use same fiber to send data+voice, but use different wavelength to send data and voice. Physically, it is in single fiber, but logically they don't collide. The point of data+voice meeting is at frequency level, and never interfere with each other. Easy to implement, lasers take care of convergence. you still need TDM+Packet switch devices separately. This is DWDM. 2) True convergence. At the entry of voice calls from phones, convert to packets and compete with data traffic. Tough problem, Latency issues. 3) Use separate wire: Dont mix, data/voice but manage it by single service provider. if the bandwidth needed is miniscule for voice, and data wires are laid, if the voice wire needs are negligible, why dont they have 2 fibers for voice, 80 fibers for data (Just as an example) and not worry about latency issues. After all 2 fiber cost is negligible when compared to 80, with less complexity. Whatever the engineers do, this technology has to live for another 50 to 100 years like telephone network/TDM switches.