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    • SFP+ on XGS1250-12 with 2.5G GPON

    Posts: 2
    First Comment
    in Switch
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    • Posts: 727  Zyxel Employee
      Zyxel Certified Network Administrator - WLAN Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate 50 Answers
      Answer ✓
      @maturbanowicz,
      Our datasheet has mentioned that 10G port links on 1G/10G, it's the hardware spec.
      For GPON, XGS1210 does not support GPON transceiver.
      However, we have some users on worldwide who help us test some 3rd part transceivers and gets works, please refer to this post Support for 2.5G SFP+ transceivers? — Zyxel Community  (This case is using SFP-to RJ45 module and link on 1G)
      Again, we do not guarantee 2.5G always works well on SFP port officially.

    All Replies

    • Posts: 2
      First Comment
      Hello, I'm trying to find out, if the 2.5G GPON SFP will work at 2.5G speed in XGS1250-12.
      I can't find switches where is said that the 10G SFP+ port can handle 2.5G.

      Thank you for your help!
    • Posts: 727  Zyxel Employee
      Zyxel Certified Network Administrator - WLAN Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate 50 Answers
      Answer ✓
      @maturbanowicz,
      Our datasheet has mentioned that 10G port links on 1G/10G, it's the hardware spec.
      For GPON, XGS1210 does not support GPON transceiver.
      However, we have some users on worldwide who help us test some 3rd part transceivers and gets works, please refer to this post Support for 2.5G SFP+ transceivers? — Zyxel Community  (This case is using SFP-to RJ45 module and link on 1G)
      Again, we do not guarantee 2.5G always works well on SFP port officially.
    • Posts: 14  Freshman Member
      First Comment Friend Collector Second Anniversary
      Probably it will not work. Actually I tried it (SFP 2.5 TP-LINK TL-SM410U) on my XGS-1210-12 - it seems that "hardware link" is established (I checked it "on the other side") but switch itself is not able to communicate with the transceiver. Please take a look here: https://community.zyxel.com/en/discussion/comment/39452

    • Posts: 2,993  Zyxel Employee
      Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
      Hi @mparka,

      Thanks for sharing your test result.
      However, our datasheet has mentioned that 10G port links on 1G/10G, it's the hardware spec.
      Although we have some users on worldwide who help us test some 3rd part transceivers and gets works, we do not guarantee 2.5G always works well on SFP port officially.


      Zyxel Melen


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