Choosing right Aruba instant access point, installing them correctly

Hi all,
i need to deploy an efficient SSID wifi in a production environment.
Scope is provide wifi for a logistic solution, based on 5 x motorola  MC9190 (or similar model).
Coverage area is 70 mt x 30 mt, we are cabling in 8 focal point in the meantime.
Requirements are stable signal, roaming, redundancy...

1) I need to choose right ARUBA InstantAccessPoint, i think 5 ghz is better ( there are yet 3 IAP , so multiple channel is required)
So i think to aruba IAP 105 or IAP 103
Can you help identifying right model for my needs?

2) Can you provide me some advice to select correct NUMBER and POSITION of ap? i cannot buy 3 ap first to do a survey...

3) Which is the correct way to install IAP? Which height? which orientation? I have some problem understanding HORIZONTAL and ELEVATION plane.

Please ask me for details!
Really thanks
M
Mattia MinerviniAsked:
Who is Participating?
 
Jakob DigranesSenior ConsultantCommented:
1. You should definitely go for 5Ghz - but choose IAP205 instead of IAP105 - since the price is similar but the IAP205 supports 802.11ac (aswell as 802.11a/b/g/n). IAP-103 is a fair bit cheaper, but only 802.11a/b/g/n
Both APs are dual radio, so both support both 2,4Ghz and 5Ghz simultaniously.
2. In regards to site survey, it'n not easy to say number of AP's based on just square meters of location. Try Arubas Visual RF (http://www.ekahau.com/wifidesign/ekahau-heatmapper#!download-3) to plan for AP, deployment and site survey. Or Ekahus heatmapper; http://www.ekahau.com/wifidesign/ekahau-heatmapper#!download-3 
But points to remember:
- plan for number of devices, just as much as coverage
- stations with low coverage, will operate at 1 - 6 mbps and can slow down entire AP
- do the building have any interfering walls or machinery?
- if you want redundancy, you need 150% coverage, so 2 APs can cover 50% each of the area of a failing AP.
- Roaming, seamless you need 802.1X, but with all APs controller managed (or with the IAPs - Virtual Controller managed) PSK should work okay for roaming aswell

3. H- and E-plane are how the radio beams send away from the AP,  For your part, IAP105/103/205 will need to mounted in the ceiling, as the send radiosignales as a cone, while IPA104/204 need external antennas and can be wall mounted.
Would mount these more or less on the middle of the room (or 1/4 from the wall on both sides) not directly towards the wall then <50% of the the coverage are sent out
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Mattia MinerviniAuthor Commented:
Thanks for all!
1) I think 103 ("medium density" instead of "High density"....) I think it's enough for me

2) I used VISUALRF (see attachment)
- no important wall or fixed machinery
- ok for redundancy
- ok for roaming
Which channels i have to use for 3 access point (1 is for hw backup)? Near there are other 3 Aruba IAP 93 in 2,4 ghz...

3) Thanks...
Height of 3mt, facing down , not on the wall. right?
Ap-Position.JPG
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Jakob DigranesSenior ConsultantCommented:
2. Use Aruba Adaptive Radio Management (ARM) - then the APs choose, and adapt and change channels automagically :)
For the drawing, if you need redundancy - I'd place 2 IAPs in the large rooms, otherwise it looks ok
3. Should be ok
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Mattia MinerviniAuthor Commented:
Hi.Can I add 4 x IAP 103 on the same lan where are 4 x IAP93?
When i Plug IAP 103, it will bring the same configuration by master virtual controller ( one of 4 x IAP93), isn't it?
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Mattia MinerviniAuthor Commented:
oh no....IAP 103 has db9 console port.
Differences between IAP 103 and IAP 92?  IAP is cheaper and has more optional item.
Maybe is better adding 4 x IAP92 to existing IAP93...
What do you think?
Thanks, sorry for duplex question
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Jakob DigranesSenior ConsultantCommented:
you can add IAP103; no problem, configuration is downloaded as long as you've set it to auto join
do you need console port then? IAP103 is the best low price AP
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Mattia MinerviniAuthor Commented:
Hi jakob, i have to choose...please be patient again
1) IAP-92 and IAP-93 are more expensive, but they are SINGLE RADIO? Is this possible? So i can't do 2,4 ghz ssid and 5 ghz ssid in the same time?

2)IAP-92 has external antenna connector, but what does it means? without an external antenna it doesn't work? or it is a way to extend power of ap? I cannot find a code for these external antenna...
Thanks
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Jakob DigranesSenior ConsultantCommented:
1. Nope --- Single radio is either 2,4 Ghz OR 5Ghz -- So, you can (not 100% correct) say that the IAP103(105/225) gives you 2 APs for the price of one
2. Without external antenna the signal is rather poor, but will function. You need antennas to use for production environmnent. IAP93 roof mount, IAP92 wall mount. You should look for ANT-1B or something in price list - standard omni-directional antennas for both 2,4 and 5 ghz (http://www.arubanetworks.com/pdf/products/ap-ant-1b_ss.pdf)

btw --- i guess IAP92/93 i End Of Life soon --- so would definitely consider AP103/AP105
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Mattia MinerviniAuthor Commented:
Perfect. I'm oriented on 4 x 205 (your first advice), help me please selecting right options...
Reading last page of attached file, i think:
4 x IAP-205-RW
4 x PD-3501G-AG
2 x AP-220-MNT-C2 (do you think 2 is enough for 4 ap?)
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Mattia MinerviniAuthor Commented:
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Mattia MinerviniAuthor Commented:
right choice..Thanks!
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