POE Switch powering another switch ?
 

This may sound a noob question but I didn't find the right forum to ask.

So here is my question:

Soon I'll have a NETGEAR GS108P switch which has 4 POE ports.

I'd like to know if I can use one of those ports to poweron another switch which is not POE ( just a normal one) ??

No, unfortunately, you cannot do this. Power over Ethernet (POE) is designed to power individual devices, not ANY device. POE provides a maximum of about 51 Watts (48 VDC) per port to power a device (i.e. VOIP phone). Most often, this is throttled down to about 16 watts (just what the phone needs) depending on the requirements of the device (could be a wireless Access Point instead, which requires more power).

I guess a simpler way of stating this might be that the 51 WATTS at a port would not be able to power a switch that requires a (apporimately) 350 Watt power supply in order to function.

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I was looking at this in terms of a Cisco 3750 switch, hence the 350 W power supply; however, PoE is still not designed to power another switch... even if it is a smaller 8-port like your example...

Oh, much thanks

Somehow I'm better enlighten about how POE works,

However,

I do own another 5Port GB switch ( which based on official doc )

–Power adapter: 12W, 12V DC, 1A
–Maximum power consumption GS105: 3.5W

I'm wondering if such a device can be powered through PoE ?

PoE powers devices FROM the switchport to the device. Switchports are not designed to allow power to COME IN and be distributed across the switch.