3550-24-DC power! anyone know?

Hi all

Ive aquired some 3550-24-dc switches for my lab however, I am struggling to get them to power and im desperate for any ideas! Im UK based so we have 240V AC but i need approx 48v DC input @2Amps to get 72W of power.

Does anyone know how the hell i can get these to work? Im trying but im struggling. I have tried to use an RPS600 or an RPS675 but CISCO say they dont support the 3550-DC! I have tried to find some AC/DC rectifiers but im struggling to find anyone who will supply at 48V.

PLEASE HELP! your my last resort guys!

abx

Comments

  • -48v DC is probably more trouble than it's worth. You can look at Lorain/Marconi/Reltec, they have some smaller systems, but still probably cheaper to just buy AC 3550s. Make sure the unit has a builting fuse panel, or you'll need to install an external one to run the power through. You'll need to look at telco-grade units to supply correct power for these switches, maybe a local telco jas some surplus or displaced units you can get your hands on. -48v DC is great in a headend/datacenter and not bad to work with on a large scale installation, in a home lab, definitely more pain than I would want to deal with.

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    You could order AC power supplies from ebay and then swap them out.



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    RFC 2321 wrote:

    -48v DC is probably more trouble than it's worth. You can look at
    Lorain/Marconi/Reltec, they have some smaller systems, but still
    probably cheaper to just buy AC 3550s. Make sure the unit has a
    builting fuse panel, or you'll need to install an external one to run
    the power through. You'll need to look at telco-grade units to supply
    correct power for these switches, maybe a local telco jas some surplus
    or displaced units you can get your hands on. -48v DC is great in a
    headend/datacenter and not bad to work with on a large scale
    installation, in a home lab, definitely more pain than I would want to
    deal with.







    Internetwork Expert - The Industry Leader in CCIE Preparation

    http://www.internetworkexpert.com



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