Access Points

Reply
Occasional Contributor II
Posts: 23
Registered: ‎10-06-2009

Power Injector compatibility ?

We currently have a combination of Cisco 1230/1250/1252 APs powered through a power injector. We are fork lifting and installing all Aruba equipment.;) My question is:
Will the power injectors that I'm currently using for the cisco 1230/1240/1250 work with the Aruba 105 AP? According to the white papers and research the 105s uses the IEEE standard which is what the 1230 and 1240 uses in their injectors. However, the 1250 ( Cisco's N solution) does not follow the IEEE standard and the injector is completely different.
Will it work? Has anybody come across this scenerio? :confused:
Thanks in advance.
gonzalo
Guru Elite
Posts: 20,598
Registered: ‎03-29-2007

Question


We currently have a combination of Cisco 1230/1250/1252 APs powered through a power injector. We are fork lifting and installing all Aruba equipment.;) My question is:
Will the power injectors that I'm currently using for the cisco 1230/1240/1250 work with the Aruba 105 AP? According to the white papers and research the 105s uses the IEEE standard which is what the 1230 and 1240 uses in their injectors. However, the 1250 ( Cisco's N solution) does not follow the IEEE standard and the injector is completely different.
Will it work? Has anybody come across this scenerio? :confused:
Thanks in advance.
gonzalo




What model is the power injector?


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 23
Registered: ‎10-06-2009

Re: Power Injector compatibility ?

cjoseph-
Model of 1230/1242 = Air-Pwrinj3
1252 = Dpsn-35fb a
Aruba Employee
Posts: 509
Registered: ‎07-03-2008

Re: Power Injector compatibility ?

I personally wouldn't chance using the Aironet injectors. In a quick search, I didn't find anything regarding any 802.3 power standards that either supported.

I use these PowerDsine models:

PD-3001-AC 1 Port PowerDsine POE Midspan AP
PD-7001-AC 1 Port PowerDsine High Power PoE Midspan 10/100/1000 30W AP

In general, I think the 3001 would be fine with the AP-105s. Colin can weigh in on that though.
Guru Elite
Posts: 20,598
Registered: ‎03-29-2007

Power injectors

Mike Gallagher is right.

Cisco frequently manufactures power product that are not standard. The first part does put out 48 VDC, but that is all it says. The second part, I could not even find. The AP105 has a gigabit ethernet port so you will want an injector that will do gigabit and standard POE, like the PD 3001G. Please consult your Aruba engineer for the best power part for your situation.


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 23
Registered: ‎10-06-2009

Re: Power Injector compatibility ?

Cjoseph and Mike Gallagher:

Thanks again for the quick reply.
I do see the 48VDC for both power injectors but the the PoE3001G says
"User Port Power: 15.4W min." and the 105AP specs says "Maximum power consumption: 12.5 Watts". I wonder if that is going to be an issue. Either way, Mike does use it and its working. PeE3001G 1 vs. AIR-PWRINJ3-0.
Thanks again.
Guru Elite
Posts: 20,598
Registered: ‎03-29-2007

No problem


Cjoseph and Mike Gallagher:

Thanks again for the quick reply.
I do see the 48VDC for both power injectors but the the PoE3001G says
"User Port Power: 15.4W min." and the 105AP specs says "Maximum power consumption: 12.5 Watts". I wonder if that is going to be an issue. Either way, Mike does use it and its working. PeE3001G 1 vs. AIR-PWRINJ3-0.
Thanks again.




It should not be an issue. Aruba resells those same power injectors.


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

New Contributor
Posts: 2
Registered: ‎04-03-2007

Power Injectors

What you need to concern yourself is if the injectors are either 802.3af or at compatible. The Cisco power injectors are not. They put the power on different pins. Use the Aruba ones.
MVP
Posts: 1,282
Registered: ‎11-07-2008

Re: Power Injector compatibility ?

Just to add, we had an Army base try to re-use the old Aironet injectors in a recent upgrade and none of their new Aruba APs worked, but when we figured out why, two of their APs were burned up (PCB in a toaster kind of smell). Replaced with PoE switches where feasible and Dsines everywhere else, and it was up.
Jerrod Howard
Sr. Techical Marketing Engineer
Occasional Contributor II
Posts: 23
Registered: ‎10-06-2009

Re: Power Injector compatibility ?

thanks all.
sorry for the delayed response. We went with the 3001g powerdsine single port injectors. Also, there is a 3com power injector for ~$20 and works great. I have deployed both and are working fine.
As jhoward said, the pin out on the cisco injectors are switched and therefore, not compliant. Toasty is the result.

Thanks
Search Airheads
Showing results for 
Search instead for 
Did you mean: