FDDI, was: Re: [rescue] u2 drive trays

Dave McGuire mcguire at neurotica.com
Tue Aug 19 14:15:59 CDT 2003

On Tuesday, August 19, 2003, at 02:28 PM, Curtis H. Wilbar Jr. wrote:
>>   Most older cards have MIC connectors, most newer (and nearly all PCI
>> cards) have SC (not ST).  FDDI on ST connectors is fairly rare...some
>> VME interfaces and DEC DEFTA/DEFZA cards have ST connectors, but
>> nothing else that I've seen.
> ok..  so, if it is available go with SC connectors on the concentrator
> to get more port density.... ok.

   Well...see below.

>>   SC<->MIC cables are common on eBay, so if you get a WS-C1400 with 
>> MIC
>> ports you're still ok...you just get lower port density on the
>> concentrator.  I'd avoid ST...they're fragile and not that easy to 
>> find
>> cheaply.  Only use it when you absolutely have to...like if you have a
>> TurboChannel machine with a DEFTA, then just get an ST<->MIC cable to
>> connect to your concentrator.
> ok... so.. SC is the way to go on a concentrator... I assume SC to SC
> cables are also pretty common :-)

   Not as common as SC<->MIC, it seems.  That's the only problem.  Many 
SC<->SC cables are for GigE and FibreChannel...and are 50/125 fiber.  
FDDI uses 62.5/125 fiber.


Dave McGuire                 "You don't have Vaseline in Canada?"
St. Petersburg, FL                     -Bill Bradford

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