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Today's Topics:
1. Re: POE Adaptor Question (Harlan Daneker)
2. Re: POE Adaptor Question (Roger Heflin)
----------------------------------------------------------------------
Message: 1
Date: Fri, 15 Dec 2023 08:56:58 -0500
From: Harlan Daneker <hdane...@gmail.com>
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] POE Adaptor Question
Message-ID:
<cac1wkir7g2k5bhek1_dsb21dyep81kt91z47wuynxs2vmp4...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I was not aware that POE cameras use 48 to 53VDC, which makes sense because
of the smaller wire gauge and explains why the adapters I am looking for do
not exist. There are some cameras out there that are POE only that I would
like to try and now I know how to go about trying them.
Thanks for the good info.
On Fri, Dec 15, 2023 at 7:16?AM Bob Conklin <bconk...@megalink.net> wrote:
> I currently run a mix of cameras that use PoE and external power adapters.
> I also use a combination of PoE compatible network switches as well as
> non-PoE switches. These switches are designed to provide power to devices
> that require it as well as protecting devices that do not need the voltage.
> I have seen hybrid switches that give you half powered and half non powered.
> Now that being said, the IEEE standard for PoE devices is fairly lengthy
> but the short synopsis is this, a PoE camera generally runs at 48 to 53
> VDC, so the Poe switches inject that voltage an various pairs of the 8 pin
> cat 5e or better cable.
> If you are wanting to do away with your current power adapters in favor of
> PoE it is doable but not advisable. That is my opinion only. Not advisable
> do to a fair amount of wiring up of home made adapters to inject the proper
> voltage along with making sure you do not back feed the voltage to other
> parts of your network.
> I would just leave well enough alone, and if you add new cameras that are
> PoE only, you can either swap out your network switches for PoE style OR
> just get passive PoE injectors the will supply power to the new cameras in
> question and leave your existing cameras alone.
> My advice would be to NOT try to modify your non-PoE cameras and if you
> add PoE ones, just add/change to a PoE switch or a stand alone injector for
> the newer cameras.
> Good luck!
>
> Bob
> Sent from my iPad
>
> On Dec 14, 2023, at 7:33?PM, Harlan Daneker <hdane...@gmail.com> wrote:
>
> ?
> The cameras I'm currently using have power connectors, but a lot of the
> new cameras do not have a separate power connector. That is why I'm looking
> for an adapter.
>
> On Thu, Dec 14, 2023 at 7:23?PM Roger Heflin <roger.hef...@gmail.com>
> wrote:
>
>> My POE cameras have a local power connection (others may also). If
>> you use that local power connection then you do not need a POE network
>> connection, you just need a standard network connection.
>>
>> On Thu, Dec 14, 2023 at 6:15?PM Harlan Daneker <hdane...@gmail.com>
>> wrote:
>> >
>> > Hello,
>> >
>> > This isn't a motion question, but I thought this may be an issue others
>> have dealt with. Many of the newer IP cameras are POE only. I found passive
>> injectors, but I already have 12VDC at the cameras and I am trying to find
>> adaptors.
>> >
>> > Thanks
>> > _______________________________________________
>> > Motion-user mailing list
>> > Motion-user@lists.sourceforge.net
>> > https://lists.sourceforge.net/lists/listinfo/motion-user
>> > https://motion-project.github.io/
>> >
>> > Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
>>
>>
>> _______________________________________________
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>> https://motion-project.github.io/
>>
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>
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Message: 2
Date: Fri, 15 Dec 2023 09:14:08 -0600
From: Roger Heflin <roger.hef...@gmail.com>
To: Motion discussion list <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] POE Adaptor Question
Message-ID:
<caamcdefuw_w-ue9nc5ck7ce4_xyw+0beydnysqjfa_aa4cs...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
So you are trying to use POE to power your non-POE cameras? There
are adapters to power a raspberry pi via POE (splits off a 5v power
supply). They are not passive components, they have solid state
power converters to change the voltage.
And you have to be careful, I have found that the outdoor "waterproof"
camera connectors are not waterproof unless you use dielectric grease
in them. Otherwise the power pins are close enough together that if
you get a bit of water (with the 50V) in them it will short out and
burn up the rj45 pins. No matter how well you try to seal them up,
nothing beats the dielectric grease that you can get at most auto
parts stores.
On Fri, Dec 15, 2023 at 7:58?AM Harlan Daneker <hdane...@gmail.com> wrote:
>
> I was not aware that POE cameras use 48 to 53VDC, which makes sense because
> of the smaller wire gauge and explains why the adapters I am looking for do
> not exist. There are some cameras out there that are POE only that I would
> like to try and now I know how to go about trying them.
>
> Thanks for the good info.
>
> On Fri, Dec 15, 2023 at 7:16?AM Bob Conklin <bconk...@megalink.net> wrote:
>>
>> I currently run a mix of cameras that use PoE and external power adapters.
>> I also use a combination of PoE compatible network switches as well as
>> non-PoE switches. These switches are designed to provide power to devices
>> that require it as well as protecting devices that do not need the voltage.
>> I have seen hybrid switches that give you half powered and half non powered.
>> Now that being said, the IEEE standard for PoE devices is fairly lengthy but
>> the short synopsis is this, a PoE camera generally runs at 48 to 53 VDC, so
>> the Poe switches inject that voltage an various pairs of the 8 pin cat 5e or
>> better cable.
>> If you are wanting to do away with your current power adapters in favor of
>> PoE it is doable but not advisable. That is my opinion only. Not advisable
>> do to a fair amount of wiring up of home made adapters to inject the proper
>> voltage along with making sure you do not back feed the voltage to other
>> parts of your network.
>> I would just leave well enough alone, and if you add new cameras that are
>> PoE only, you can either swap out your network switches for PoE style OR
>> just get passive PoE injectors the will supply power to the new cameras in
>> question and leave your existing cameras alone.
>> My advice would be to NOT try to modify your non-PoE cameras and if you add
>> PoE ones, just add/change to a PoE switch or a stand alone injector for the
>> newer cameras.
>> Good luck!
>>
>> Bob
>> Sent from my iPad
>>
>> On Dec 14, 2023, at 7:33?PM, Harlan Daneker <hdane...@gmail.com> wrote:
>>
>> ?
>> The cameras I'm currently using have power connectors, but a lot of the new
>> cameras do not have a separate power connector. That is why I'm looking for
>> an adapter.
>>
>> On Thu, Dec 14, 2023 at 7:23?PM Roger Heflin <roger.hef...@gmail.com> wrote:
>>>
>>> My POE cameras have a local power connection (others may also). If
>>> you use that local power connection then you do not need a POE network
>>> connection, you just need a standard network connection.
>>>
>>> On Thu, Dec 14, 2023 at 6:15?PM Harlan Daneker <hdane...@gmail.com> wrote:
>>> >
>>> > Hello,
>>> >
>>> > This isn't a motion question, but I thought this may be an issue others
>>> > have dealt with. Many of the newer IP cameras are POE only. I found
>>> > passive injectors, but I already have 12VDC at the cameras and I am
>>> > trying to find adaptors.
>>> >
>>> > Thanks
>>> > _______________________________________________
>>> > Motion-user mailing list
>>> > Motion-user@lists.sourceforge.net
>>> > https://lists.sourceforge.net/lists/listinfo/motion-user
>>> > https://motion-project.github.io/
>>> >
>>> > Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
>>>
>>>
>>> _______________________________________________
>>> Motion-user mailing list
>>> Motion-user@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/motion-user
>>> https://motion-project.github.io/
>>>
>>> Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
>>
>> _______________________________________________
>> Motion-user mailing list
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>>
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>>
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>> Motion-user mailing list
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>>
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>
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