ANATEL - the equivalent to the FCC in Brazil is not so strict when it comes to NDAs of Photos:
Note the different numbers in the document and photo.
END OF UPDATE
What is the FCC? I will quote Wikipedia :P
Basically every device that includes wireless data transmission technology and that is going to be sold to the public in the US must be approved by the FCC.
The Federal Communications Commission (FCC) is an independent agency of the United States government, created by Congressional statute (see 47 U.S.C. § 151 and 47 U.S.C. § 154) to regulate interstate communications by radio, television, wire, satellite, and cable in all 50 states, the District of Columbia and U.S. territories. The FCC works towards six goals in the areas of broadband, competition, the spectrum, the media, public safety and homeland security, and modernizing itself.
Now to the meat of the thread.
Microsoft is just testing the wireless chip for FCC approval. (See modular approval request)
The console itself is called the "Host".
Each FCC filing has Exhibits including the label location, test photos, manuals etc...
The applicant can chose to NOT make certain information public by the FCC which mostly includes photos, manuals and drawings of the device. But those documents have a availability date.
This will be important later.
1. Xbox One's wireless chip was approved by the FCC under Model Number 1525 or the FCC ID C3K1525 (C3K is the unique identifier for Microsoft and 1525 the model number)
you can see it's Xbox One:
- by opening the attached user manual for the Host that carries the wireless chip --> https://fccid.io/document.php?id=1994252
- by looking on the bottom of your Xbox One - you will find the FCC ID 1525
2. There are TWO recent filings with model numbers
1682 --> https://fccid.io/C3K1682
1683 --> https://fccid.io/C3K1683
Not if we check the Exhibits for those two models we can see that model 1683 includes a document named "User Manual 1525" which is not yet available and thus under NDA but the name gives away that this is basically a new Xbox One which will use the safety information manual from the OG Xbox One (https://fccid.io/document.php?id=1994252)
--> New Xbox One revision - the NDA expires June 25 which means we will probably see a surprise release during E3
Model 1682 has the same wireless chip tested but the NDA expires late in July 29 and has it's own host manual linked but not the 1525 reference. Also there are quite some more Exhibits available here which makes me think this is the rumored Xbox Next or whatever it is called.
Also compare the label placements between OG Xbox One and 2 new filings.
I also tried to compare the test reports but a lot of results are missing in the 1682 model results.
TL;DR: FCC Filings show 2 consoles tested using the same WiFi chip where one is referencing the manual of the Xbox One and the other one not. (+ different expiry dates for attachments)