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What means (2 LRM Capable) in 220 Series Description?

  • 1.  What means (2 LRM Capable) in 220 Series Description?

    Posted 08-23-2018 16:07
    Hello, team,

    "220-Series 48 port 10/100/1000BASE-T, 4 10GbE unpopulated SFP+ ports (2 LRM Capable), 1 Fixed AC PSU, 1 RPS port, L2 Switching with RIP and Static Routes, 1 country-specific power cord"

    Does it mean that only two SFP+ ports could be used for 10Gb transceivers simultaneously?


  • 2.  RE: What means (2 LRM Capable) in 220 Series Description?

    Posted 08-23-2018 19:27
    Hi Ilya,I'm just going to guess, but I imagine it means of the four 10GbE SFP+ ports, only two of them can effectively power LRM optics.


  • 3.  RE: What means (2 LRM Capable) in 220 Series Description?

    Posted 08-25-2018 15:25
    there are 4 SFP+ ports. each is capable of 10G.
    Issue is with LRM = consume a lot of energy and there are only two SFP+ ports what can deliver enough of energy for LRM.

    hope it is easier to understand now.