Cisco 2948G-L3 switch

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  • JEWilson
    Badcaps Veteran
    • Sep 2007
    • 369
    • Scotland, United Kingdom

    #1

    Cisco 2948G-L3 switch

    Rec's this used in a reported condition where it would lock up
    after a an uptime of 3/4 days

    I suspect capacitor failure in line with the symptom but
    this remains to be seen.

    With the cover off, the SMPS PSU is populated with Nichicon
    PMs and Rubycon YXGs

    The main PCB has four of the devices in the middle with
    large heatsinks and there are 4 fans to the rear of the chassis.
    The main pcb of the switch has 23 of 10V 1500uF caps
    as well as several tant chips caps and a couple of,
    what appears to solids at 35V 220uF

    My Q is?
    The 23 of 10V 1500uF caps are brown with a K mark
    on the top of the cap but, the logo on the side is
    what appears to be Nc.
    The solids have the following markings;
    100 220 35z

    I do not know what these are. Can somebody help?

    I should add there are no signs of distress albeit I
    have not tested the ESR of any yet.

    Thanks
  • willawake
    Super Modulator
    • Nov 2003
    • 8457
    • Greece

    #2
    Re: Cisco 2948G-L3 switch

    http://www.niccomp.com/
    ??
    capacitor lab yachtmati techmati

    Comment

    • JEWilson
      Badcaps Veteran
      • Sep 2007
      • 369
      • Scotland, United Kingdom

      #3
      Re: Cisco 2948G-L3 switch

      Thanks Willa

      In actual fact, the solids are 001 220 35z
      The lytics are NRSZ series

      Comment

      • kc8adu
        Super Moderator
        • Nov 2003
        • 8832
        • U.S.A!

        #4
        Re: Cisco 2948G-L3 switch

        nc caps are ok
        likely rebadged sanyo.
        i have put nrsz in a ton of stuff with no problem.

        Comment

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