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Forum Discussion
ethernut
Oct 16, 2021Aspirant
Using several POE adaptors downstream of GS105 switch. Is it OK?
I have a GS105 switch that I intend to use in a 4G Internet solution in a remote area.
I have an antenna with a built in that modem and router that outputs via simple ethernet cableThe anenna is powered via its own own POE adaptor.(one with a power supply input, a male RJ45 input and a and femnale RJ45 output)
I'm goint to connect the antenna to one port on the switch. Another port will go to a wireless access point and yet another port to a VOIP phone. Both of these devices are also POE and come with their own adaptors.of the similar type.
Qn
Can I fit all three POE adaptors in their respective ethernet cables all of which connected to the switch? (diagram below)
I am concerned in case one adaptor uses say, the orange pair for positive and another uses the orange pair for negative so will in effect short each other out. That or the adaptors using diffent voltages.meaning current flows through the switch from one port to the other.
i.e can I do this...?
That's more a question you should raise with the makers of these crazy proprietary "PoE" adapters and hardware.
The DC path should be isolated towards to the switch, and only provide power to the powered device.
Nothing the switch can and must do against this here.
5 Replies
- ethernutAspirant
- plemansGuru - Experienced User
You should be able to. the POE injectors are usually setup so it isn't backfeeding voltage.
- schumakuGuru - Experienced User
That's more a question you should raise with the makers of these crazy proprietary "PoE" adapters and hardware.
The DC path should be isolated towards to the switch, and only provide power to the powered device.
Nothing the switch can and must do against this here.
- ethernutAspirant
schumaku wrote:The DC path should be isolated towards to the switch, and only provide power to the powered device.
Thank you, I guess that's what I was asking really. That's why I posted in the Netgear forum.
I was rather hoping that the ports on the GS105 switch blocked DC but couldn't find any documentation that said so.
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