[115119] in North American Network Operators' Group
Re: Eye protection in DWDM systems -- what threshold?
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Tue Jun 9 14:22:02 2009
From: "Patrick W. Gilmore" <patrick@ianai.net>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <20090609180642.GJ51443@gerbil.cluepon.net>
Date: Tue, 9 Jun 2009 14:21:46 -0400
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Jun 9, 2009, at 2:06 PM, Richard A Steenbergen wrote:
> On Tue, Jun 09, 2009 at 12:43:09PM -0400, Jeff Kell wrote:
>> Reminds me of the old warning/attention sign over a termination
>> rack...
>>
>> WARNING: Do not look into laser with remaining eye.
>
> The only problem with those funny signs is they scare remote hands
> techs
> into never looking at a fiber because they don't want to try and
> understand the difference between a SX GBIC and a class 3 ultra
> longhaul
> amp.
Honestly, that is probably better. Kinda like never pointing a gun at
anyone, whether you think it is loaded or not.
Put another way: I don't trust many H&E techs to know the difference
between an SX GBIC and a Buck Rogers Laser Cannon.
Besides, lots of lasers these days are infrared, so you can't see them
anyway. (Hence the "last thing you never saw" comment.)
--
TTFN,
patrick
