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Q About IFE VCC On LCCs  
User currently onlineCRJ900 From Norway, joined Jun 2004, 2454 posts, RR: 1
Posted (11 years 1 month 2 weeks 1 day 6 hours ago) and read 4372 times:
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When flying older 747, 777, 330s I have noticed Video Control Cabinets (VCC) as large as lavatories or taking up the entire space under the stairs to the upper deck on the 744, but when browsing pictures of A319 and A320s from Frontier and jetBlue I cannot see any protruding VCCs in the cabin.

So my question is: has IFE technology come so far that the VCC can now fit into the PA system above the purser's jumpseat and thus eliminate a big cabinet (and pack more seats in)?

Anyone who knows?

Come, fly the prevailing winds with me
2 replies: All unread, jump to last
User currently offlineFA4B6 From , joined Dec 1969, posts, RR:
Reply 1, posted (11 years 1 month 2 weeks 1 day 6 hours ago) and read 4365 times:

in one word, yes.

i know that jet runs wiring from the satellite, to the FAP, to individual boxes underneath each bank of seats

User currently offlineKnoxibus From France, joined Aug 2007, 260 posts, RR: 23
Reply 2, posted (11 years 1 month 2 weeks 1 day 6 hours ago) and read 4358 times:

Not exactly.
Up until recently, VCCs have contained the main head-end LRUs (Line replaceable units) ranging from distribution, demodulation units, ethernet switches, video tape reproducers, and the "terminal" which controls everything.

On narrow body aircraft, you do not need up to 8 VTRs for example, two will do.

Even the old systems (Sony p@ves) were able to fit into a simple overhead bin bag. and you still had the seat boxes at least for audio distribution and channel selection at your seat.

So the bigger the aircraft, the bigger the VCC, simple as that.

But now the policy, specially with the appearance of HDDs and servers, can allow to avoid quick access to VTRs and audio tape reproducers. (Downloading of files is through a data port in the cabin).

Only one box can now deal with the modulation/compression of the data/media streams, and its distribution to the seat boxes.

An ethernet switch eases addressing of all this.

And now the IFE centers are more located in the EE-bays, but if you look at the amount of servers (for example EK), it still represents a big volume.

It's just that they try to place more stuff out of the cabin to have more room.

In the other hand, they do improve the technology.

The enhanced forward attendant panel on the latest Airbi can indeed have at least pre-recorded announcements and background music, simply MP3s stored on a CF card inserted below the FAP. The cabin intercommunication data system deals with the distribution all by itself.

I guess it's just a matter of time before everything is stored on a couple of HDDs and one box does all the work.

No matter what anybody tells you, words and ideas can change the world.
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