More explanations about MESH and 802.11n

Hello,
I just begin WiFi installations and I have some existential questions.
I have 5 Cisco 1552-E APs. One of them is wired to LAN and act as RAP, the 4 others are MAP.
On each AP, I use 1, 6, 11 channels as 2,4GHz non-overlapping channels.
As I have a 802.11n network, I use 5GHz band with non-overlapping channels too. Because I'm in Europe and outdoor, I want to use 100, 112, 124, 136 and 140 channels.
But all the 5 APs have a MESH backhaul 5GHz link to connect to LAN.
Please clarify my mind, because I don't understand how it is possible for 2 APs, to communicate between themselves on a different 5GHz channel ??
Thank you,
Clement

There is a new model which has 3 antenna ports for the 5ghz and 3 antenna ports for the 2.4ghz. This allows you to use one of the Cisco mesh patch antennas for a longer backhaul shoot to the RAP or even a MAP. It's hard to say what you can do but that gives you more options.
Cisco Aironet 1552E/1552EU External Antenna Access Points
The Cisco Aironet 1552E/1552EU Outdoor Access Points are the standard models, dual-radio system with external antenna ports that are compliant with IEEE 802.11b/g/n standards (2.4 GHz) and 802.11a/n (5-GHz). The 1552E has three external antenna connections for dual-band omni or directional antennas. The 1552EU has six external antenna connections, three for 2.4 GHz and three for 5 GHz antennas, that support omni or directional antennas. They have Ethernet and fiber Small Form-Factor Pluggable (SFP) backhaul options, along with the option of a battery backup. These models also have a PoE-out port that can power a video surveillance camera or other devices. Highly flexible models, the Cisco Aironet 1552E/1552EU are well equipped for municipal and campus deployments, video surveillance applications, mining environments, and data offload.
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Will this work?
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vit wrote:
Bazzaah wrote:
Still no luck with the firmware - weird!
From everything log;
May 1 13:52:52 localhost kernel: [ 241.501240] Registered led device: rt2800usb-phy1::radio
May 1 13:52:52 localhost kernel: [ 241.501261] Registered led device: rt2800usb-phy1::assoc
May 1 13:52:52 localhost kernel: [ 241.501278] Registered led device: rt2800usb-phy1::quality
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The 802.11n protocol is newer and faster than 802.11g; click here for more information. The iPod touch and Mac mini will be limited to 802.11g.
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en1:
Card Type: AirPort Extreme (0x14E4, 0x90)
Firmware Version: Broadcom BCM43xx 1.0 (5.10.91.19)
Locale: ETSI
Country Code: IE
Supported PHY Modes: 802.11 a/b/g/n
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Status: Connected
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MyHomeNetwork:
PHY Mode: 802.11n
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Channel: 44,1
Network Type: Infrastructure
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MCS Index: 15
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