Hi!
I plan to have connection like this
CRS112-8P --------------- Hex POE ---------------- Aruba IAP
Problem is that Hex POE will be in location without electrical outlet, hence it needs to be powered over POE by CRS112.
Aruba IAP needs 802.3at.
Documentation has it that Hex POE supports 802.3at output if powered by 48v.
documentation also states that it takes passive POE-in as input.
Hence the questions: is it possible to power Hex POE with 48v from CRS112-8P (it has dual power) and get 802.3at on output port?
One dilemma is the one you’re having: does hEX PoE support 802.3af/at PoE in … but there’s also question of power budget: CRS112-8P has limit of max 450mA output. Some 120mA will be consumed by hEX PoE, is the remaining 330mA (around 16W) enough for Aruba IAP?
Thanks for response!
per specs max consumption of IAP using POE+ is 20w, which is indeed more than budget leftovers on hex poe.
but in real life typical observed consumption is 6w, and peak 13w. so 16w should be enough.
if things go wrong way, I always can switch it to power saving mode, which uses 802.3af.
and there’s no alternative to this topology, as hex POE also will serve as a border switch, wrapping internet traffic to wlan and sending to router inside the net.
currently I use netgear gs105pe, but it doesn’t provide enough control