Check the distances at the URL below. These are the same specs that
enterasys uses.
http://www.cisco.com/univercd/cc/td/doc/product/core/7202/fru/10901gbc.htm
62.5 micro gets 275 meters over SX and 550 over LX with the mode
conditioning patch cord.
Eric Fairfield
CCIE #6413
----- Original Message -----
From: "Tim Rutherford" <[EMAIL PROTECTED]>
To: "Eric Fairfield" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, April 04, 2001 10:53 AM
Subject: Re: [Re: Gigabit ethernet distance limitation (off topic )]
1000Base-SX
Short-wave optics, allowing up to 260 meters over 62.5 micron multimode
fiber,
or up to 550 meters over 50 micron multimode fiber in a full duplex,
switch-to-switch connection
1000Base-LX
Long-wave optics, allowing up to 440 meters over 62.5 micron multimode
fiber,
up to 550 meters over 50 micron multimode fiber, or up to 10 kilometers over
10 micron single mode fiber in a full duplex, switch-to-switch connection
"Eric Fairfield" <[EMAIL PROTECTED]> wrote:
Yes, you can get MM fiber to work with the LX interfaces. To do so requires
a mode conditioning patch cable. Basically it is a fiber patch that is
single mode on the transmit and multimode on the receive. The single mode
is spliced into a multimode strand after about 6 to 12 inches. This is
standard in the gigabit arena. Here is a URL.
http://www.cisco.com/univercd/cc/td/doc/product/core/7202/fru/10901gbc.htm
--
Eric Fairfield
CCIE #6413
"Mohamed Heeba" <[EMAIL PROTECTED]> wrote in message
91B200CBBEC3D111992A00805F31E6CB880880@MINAMAIL">news:91B200CBBEC3D111992A00805F31E6CB880880@MINAMAIL...
> hi guys
> anyone know if the LX modules can run over MM fiber ?
> where can i get the distance limitation for this
>
>
> thx
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