What is the power consumption of the PLA6456?

User1516
User1516 Posts: 3
Friend Collector
in Smart Home Product
Hello, I would like to know the power consumption of the PLA6456 powerline adapter in full operation and power saving mode.
I can't find any information regarding the actual power consumption given in watt in the user manual, forums or reviews.
Second question, what is the difference between the PLA6456 and PLA6457?
The PLA6457 is probably more recent but I can't find any difference between their specifications in their dedicated pages.
Thank you very much for your information and help!

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  • Zyxel_Jerry
    Zyxel_Jerry Posts: 1,307  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 50 Answers 1000 Comments
    edited August 2022 Answer ✓
    Hi @User1516

    Here is the spec of PLA6457 in below URL
    https://www.zyxel.com/products_services/G-hn-2400-Mbps-Wave-2-Powerline-Pass-thru-Gigabit-Ethernet-Adapter-PLA6457/specifications
    The difference between PLA6456 and PLA6457 is the type of the Home Plug, Pla6457 use Type F

  • mMontana
    mMontana Posts: 1,389  Guru Member
    50 Answers 1000 Comments Friend Collector Fifth Anniversary
    @Zyxel_Jerry the request was power consumption. Thanks for reporting these specs but no one fullfill the question.
  • tonygibbs16
    tonygibbs16 Posts: 951  Guru Member
    50 Answers 500 Comments Friend Collector Fourth Anniversary
    Hello @User1516 and @mMontana

    The PLA6457 complies with ITU-T G.hn G.9963, and that ITU-T recommendation points to G.9964 for the power spectral density.

    Clause 6.5 of ITU-T recommendation G.9964 available at https://www.itu.int/rec/T-REC-G.9964-202002-I!Amd3/en says that the maximum transmit power on Baseband power line is +20dBm , which converts to 100mW of transmit power maximum.

    So I don't think that the PLA devices will use much power themselves.

    The passthrough power plug would be likely to use more power when something is connected to it.

    I hope that this is helpful from a fellow user.

    Kind regards,
         Tony
  • tonygibbs16
    tonygibbs16 Posts: 951  Guru Member
    50 Answers 500 Comments Friend Collector Fourth Anniversary
    edited August 2022
    As a comparison, a TP-Link TL-PA717 has a maximum power consumption of 2.7W, see https://www.tp-link.com/uk/home-networking/powerline/tl-pa717-kit/#specifications

    2.7/240 = 11.25 mA.

  • User1516
    User1516 Posts: 3
    Friend Collector
    Zyxel_Jerry said:
    Hi @User1516

    Here is the spec of PLA6457 in below URL
    https://www.zyxel.com/products_services/G-hn-2400-Mbps-Wave-2-Powerline-Pass-thru-Gigabit-Ethernet-Adapter-PLA6457/specifications
    The difference between PLA6456 and PLA6457 is the type of the Home Plug, Pla6457 use Type F


    Thank you for this, can't believe I had missed it!
  • User1516
    User1516 Posts: 3
    Friend Collector
    tonygibbs16 said:
    Hello @User1516 and @mMontana

    The PLA6457 complies with ITU-T G.hn G.9963, and that ITU-T recommendation points to G.9964 for the power spectral density.

    Clause 6.5 of ITU-T recommendation G.9964 available at https://www.itu.int/rec/T-REC-G.9964-202002-I!Amd3/en says that the maximum transmit power on Baseband power line is +20dBm , which converts to 100mW of transmit power maximum.

    So I don't think that the PLA devices will use much power themselves.

    The passthrough power plug would be likely to use more power when something is connected to it.

    I hope that this is helpful from a fellow user.

    Kind regards,
         Tony

    It is an excellent idea to look at these recommendations, thank you. However, I have to admit that I'm not knowledgeable enough to understand the link between the 100mW and the few watts in real use (and what a huge difference!).

    That is my problem, I have looked at other adapters for reference and their power consumption varies greatly. It seems that most of them use about 3W like the one you linked, but some others use much more power like the TP Link TL-PA8010P (6W in use advertised in their specs but it is up to 14W in use and 6W in power saving mode according to user measurements).

    I find it very strange that the power consumption of the PLA6456 is not listed in its official specification page.
    Is there any way to be sure of the power consumption of the PLA6456 / PLA6457 without measurement or has a measurement been made?






  • Zyxel_Jerry
    Zyxel_Jerry Posts: 1,307  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 50 Answers 1000 Comments
    Answer ✓
    Hi @User1516

    Thanks for the feedback.
    Here is the spec below,
    Full Operation: < 6 W
    Standby mode: < 0.5 W

    We'll modify the specs on the official specification page.

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