Re: what is dark fiber?

[Bart Kurek]

Good definition. Also buildings with fiber and electronics attached are referred to as "lit" buildings. For example I can say that my company has 200 "lit" buildings in the Portland metro area meaning we have fiber AND electronics in those buildings. Most LEC's or CLEC's don't provide dark fiber any more. Not enough money in it. -Bart Kurek Sales Engineer Electric Lightwave Inc. (ELIX) http://www.eli.net mailto:[EMAIL PROTECTED]     ----- Original Message ----- From: Martin-Guy Richard To: [EMAIL PROTECTED] Sent: Tuesday, September 05, 2000 10:06 AM Subject: Re: what is dark fiber? Hi, Dark fiber   Dark fiber is optical fiber infrastructure (cabling and repeater) that is currently in place but is not being used. Optical fiber conveys information in the form of light pulses so the "dark" means no light pulses are being sent. Dark fiber can refer to infrastructure that is in place but not yet ready to use. For example, some electric utilities have installed optical fiber cable where they already have power lines installed in the expectation that they can lease the infrastructure to telephone or cable TV companies or use it to interconnect their own offices. To the extent that these installations are unused, they are described as dark. "Dark fiber service" is service provided by local exchange carriers (local exchange carrier) for the maintenance of optical fiber transmission capacity between customer locations in which the light for the fiber is provided by the customer rather than the LEC.     I took that definition on www.whatis.com: http://www.whatis.com/WhatIs_Definition_Page/0,4152,211891,00.html bahadir korkmaz wrote: hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]