4 ms·

> you're going to be putting it pretty much near an outlet anyway so why did you think you needed PoE? I think the idea is to use PoE to power devices plugged

by aix1 4y ago

> you're going to be putting it pretty much near an outlet anyway so why did you think you needed PoE? I think the idea is to use PoE to power devices plugged into the router. These may or may not be nearby (think a PoE camera).

TheRealPomax 4y ago
if I'm wiring up for surveillance, those cameras are going to have wires running into the walls anyway. Whether that's ethernet or ethernet + DC, practically speaking, makes no difference =/
- archi42 4y ago
  And where do you put the PSU for the devices? Remember you might need to replace them, so "in the wall" is bad idea. Practically speaking you'll also need a larger duct for Ethernet+DC (if you need/use them; we have stone walls, and need them) and pull twice the number of lines. Even pulling Ethernet and DC at once adds some overhead. Now for a single device it's not a lot of difference (but then just use a single PoE injector instead of a PoE switch), but you'll easily add 4 to 8 cameras to a house and 3 or 4 APs. And with a big PoE switch, you can casually get the PoE variant of other devices, so even less PSUs (for us: VoIP-to-Dect gateway [the SO insisted on a "landline"], Modbus-to-TCP gateway [energy meter], video doorbell and a 5 port switch). Our switch also reports power usage and allows to use schedules (we're not using that, but might be interesting for larger installations).
  - TheRealPomax 4y ago
    In an electrical box in the electrical closet, with the breakers. Like any sane setup. Although if you live in North America and you're used to "wired get stapled onto studs and then we put drywall directly on that" the idea that you can have actual cable routes in the wall that you can just run multiple cables through so you can can take them out and put new ones back in as needed is a surprisingly unknown concept.

4 ms·

> you're going to be putting it pretty much near an outlet anyway so why did you think you needed PoE? I think the idea is to use PoE to power devices plugged

by aix1 4y ago

TheRealPomax 4y ago
if I'm wiring up for surveillance, those cameras are going to have wires running into the walls anyway. Whether that's ethernet or ethernet + DC, practically speaking, makes no difference =/
- archi42 4y ago
  And where do you put the PSU for the devices? Remember you might need to replace them, so "in the wall" is bad idea. Practically speaking you'll also need a larger duct for Ethernet+DC (if you need/use them; we have stone walls, and need them) and pull twice the number of lines. Even pulling Ethernet and DC at once adds some overhead. Now for a single device it's not a lot of difference (but then just use a single PoE injector instead of a PoE switch), but you'll easily add 4 to 8 cameras to a house and 3 or 4 APs. And with a big PoE switch, you can casually get the PoE variant of other devices, so even less PSUs (for us: VoIP-to-Dect gateway [the SO insisted on a "landline"], Modbus-to-TCP gateway [energy meter], video doorbell and a 5 port switch). Our switch also reports power usage and allows to use schedules (we're not using that, but might be interesting for larger installations).
  - TheRealPomax 4y ago
    In an electrical box in the electrical closet, with the breakers. Like any sane setup. Although if you live in North America and you're used to "wired get stapled onto studs and then we put drywall directly on that" the idea that you can have actual cable routes in the wall that you can just run multiple cables through so you can can take them out and put new ones back in as needed is a surprisingly unknown concept.