[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference 7.286::fddi

Title:FDDI - The Next Generation
Moderator:NETCAD::STEFANI
Created:Thu Apr 27 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2259
Total number of notes:8590

1595.0. "FDDIcontroller/cables/supported on " by ANNECY::MAIGRET_Y () Wed Feb 22 1995 07:56

    Questions about FDDIcontrollers for DEC3000-300X and DEC2100 4/275
    
    Configuration : DEC 3000-300X with OSF/1 V3.0
    
      Which DEFTA FDDI controller I have to use (DEFTA-FA/AA/DA)?
    
      Is dual attachment (DEFTA-DA) supported on DEC 3000-300 ?
    
      What are the Fibre Optic cables that I have to use to connect these
      controllers to a DECconcentrator 900MX (DEF6M-MA) with MIC connector
      (BN24x-xx) ?
    
    
    Configuration : DEC2100 4/275 with OSF/1 V3.0
    
      Is it better to use the EISA or PCI FDDIcontroller ?
    
      What are the Fibre Optic cables that I have to use to connect these
      controllers to a DECconcentrator 900MX (DEF6M-MA) with MIC connector
      (BN24x-xx) ?
    
    
    Thanks for your support.
    Yves Maigret.
T.RTitleUserPersonal
Name
DateLines
1595.1NETRIX::thomasThe Code WarriorWed Feb 22 1995 09:0016
Do you have to use MIC connectors on the concentrator?  UTP is much much
cheaper.

Why use the dual attachment?  Do you have two rings?

Use the BN24D-xx to go from the ST connector DEFTA-FA to NIC.

For OSF/1 V3.0, the DEFEA (EISA) is the only choice since the DEFPA
support is only in V3.2 or later.  But if you could use the DEFPA
then you should.  That's requires a cable which Digital doesn't sell
but you can use a BN34A-xx and a BN23D-xx with ST barrel connectors
to make a cable.

But in reality, buying the UTP versions of the boards and UTP ports for
900MX is cheaper than buying the MMF versions of the boards.  And UTP
cables are much much easier to get/make than fiber.
1595.2Need your help !!!!!!????ANNECY::MAIGRET_YThu Feb 23 1995 04:1426
    Yes, I am using two rings.
    
    
    I got some information from my customer, and your help will be really
    appreciated.
    
    My customer don't want to heard about UTP, only STP or Fibre Optic.
    
    Can I use STP cable with the DECconcentrator DEFUX-AA, and the PEswitch
    TX ?
    
    My customer absolutely wants that all the stations (DEC 200 4/166) and
    servers DEC 2100 4/275 have a dual FDDI attachment, it is for High 
    availability reasons.
    
    I know, that for the servers I can use the DEFPA-DA, or the DEFEA-DA
    FDDIcontroller, but for the station DEC 200 4/166 can I use the
    DEFPA-DA ? Perhaps I will have to run OSF/1 V3.2, is it true ? 
    
    I have the same question, if I use DEC3000-300X station, can I use the
    DEFTA-DA ?
    
    Thanks for help
    
    Yves Maigret
    Project Manager.
1595.3DEFXU-AA support 100 ohm STPNETCAD::MELARAGNIThu Feb 23 1995 12:316
    The DEFXU-AA (modPMD UTP interface card) does support 100 ohm STP. I
    don't have a DECconnect catalog in front of me, so i can't give you any
    cable part numbers.
    
    Hope this helps,
    bill