Recent content by margan

  1. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Hi to all. I've seen it has been released a new firmware for VTO 3211D-P2 as mine is (I own it from about two years) . Looking at the Dahua download page they specify the compatibility with the models VTO3211D-P-S1/P2-S1/P4-S1(VTO3211D-P-S1 ). Not sure if they upgraded hardware and this "S1" is...
  2. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    I can confirm that this VTO 3211 works with a cheap passive POE injector powered with a 48V switching power supply.
  3. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    IEEE 802.3af parameters Power supply output power 15,4 W Minimum power available to the receiver 12,95 W Output voltage range of the power adapter 44,0 ... 57,0 V Voltage range available at the receiver 37,0 ... 57,0 V Maximum current 350 mA Maximum twisted pair resistance 20 Ω...
  4. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    No sorry, it doesn't. Mine was tested with both 12V and 24V poe injector and doesn't switch on with these voltages!
  5. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    I'm enough sure. Here the technical info in a shop: VTO3211D-P : Postazione esterna IP DAHUA, sensore 1/2.8" 2 Mp, ottica 1.9mm, pulsante meccanico, Lettore Card, Alluminio, IP65 IK08. Alim. PoE 48V - Dahua And here a video where a 51V HIKVISION poe switch is connected to this VTO:
  6. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Answer by myself. Yes it is ! The usual distance of this VTO from POE injector is longer than the one from a switch POE to the internal units. Thus a cable awg23 or 24 is too small to carry more amperes in a 12 or 24V for long distances. With 48V 0,3 amperes are more than the double amount of...
  7. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Hi to all, Anyone here powered this VTO with POE. Mine did'nt switch on with a 24V POE injector. Really does need at least a 48V POE injector ?
  8. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Thanks Claudio, yes I will do it, keep in mind that my vto unfortunately has not a SIP firmware like the title of that thread seems concerns. Thanks for all anyway !
  9. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    hi Claudio, About one of the solution you suggested, i.e. interpose a SIP server, it's what I'd like to do. My project is to put an Asterix server on a raspberry and a fritzbox 3490 I own. I went from bad experience you can read in this forum since I've bricked my VTO 3211 trying to put...
  10. M

    Dahua IPC unbricking / recovery over serial UART and TFTP

    Hi, You can't modify any signed firmware !
  11. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Me too bought the same VTO from Aliexpress, maybefrom a different seller, but mine has SN on NET config and on VDP config also. About reset I have to point out that you have to push the reset button five times sequentially and not five seconds.
  12. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Two comments: first time I explored mine, config tool identify the hardware as 3221; secondly, VTO 3221 doesn't exist in any list of devices made from Dahua in all global search I've made. So to me 3221 and 3211 are two versions of the same hardware, eventually for different market ( China...
  13. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Talking about VTO3211 it probably has more rigidity to be upgraded with those firmwares . Tried with a V3 multilanguage and a more interesting SIP ( General_VTO3221D_Eng_P_32M_SIP_V3.200.0012001.0.R.20180330). But can't understand the reason why with VDPconfig the upgrade process is stuck at 50%...
  14. M

    Dahua IP intercom: VTO3211D-P2 (new P & P4 ) door station - experience, review, firmware support?

    Sure, tried..... and bricked the VTO!:facepalm: A week of work to unbrick it with UART and TFTP. Luckily there is a thread here that helps people to recover these devices, IPC or doorbells, it's the same. They appears to be signed firmwares also, but I can't understand the source of these...
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