cant pull enough power off switch for attendant module to work

[jaredap]

Hi folks, 

Just installed a voip cisco system. I included a few attendant consoles as add ons for my 8851 phones. Unfortunately, the phones are pulling power fine but the one console I have on each phone is not pulling power. I have activated the consoles on the admin software for the phone. Is there a setting on my netgear managed gs752tp switch that may be to blame for not pulling enough power. Any ideas would be greatly appreciated as I prefer not to have to add power supplies to consoles that are supposed to work via poe. 

[Jaime Valencia]

So, you're actually talking about sidecars/KEMs??

If so, see table 4

https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/ip-phone-8800-series-key-expansion-module/datasheet-c78-732356.html

[jaredap]

yes, this is what I am talking about.  The 8851 should be able to pull enough power from this switch for one KEM but it is not. I am not sure if it is a hardware setting in the switch. 

this is the poe status on my switch for the particular phone with KEM that I am speaking of.  The phone with the KEM is on G4 port. Any thoughts?

Interface	Admin Mode	Priority Level	High Power Mode	Class	Timer Schedule	Output Voltage (Volt)	Output Current (mA)	Output Power (Watt)	Power Limit	Status
		Enable Disable	High Medium Low			None schedule
	g1	Enable	High	802.3at	0	None	0	0	0	15400	Searching
	g2	Enable	High	802.3at	3	None	54.8	73	4	15400	DeliveringPower
	g3	Enable	High	802.3at	0	None	55	63	3.5	15400	DeliveringPower
	g4	Enable	High	802.3at	3	None	54.8	81	4.4	30000	DeliveringPower