AES X246 proposal for standards is out from the SC-02-05 working group.
This give the working group an opportunity to comment on a pattern describing Pair order and caveats of using QTP.
Not letting anything out of the bag because the manufacturers are mixed around.
Something magical about the Quad choice. QTP-4-Everyone
For the field, I would expect a simple visual inspection to influence deployment decisions. Looking at the solid colours to determine the channel order. Below is an image that has been the result of many conversations. An observation I’d like to present: If you look at RJ45 connectors the solid colours are visible. The order of the solid colour should dictate the channel order. Pair three in both cases is split around pair 2. Pins of multiples of 2 are considered “Hot”. QTP-B is based on the TIA-B wiring scheme. 
We’re having some fun at AES & NAB New York next week! In support and promotion of AES X246. Ward-Beck is having a ‘Poker Run’ for all who’s interested in winning WBS prize packs.
Pick up a playing card at friends of WBS booths, and make your best 5 card hand. It will be 5 card stud rules, and best two hands by 2pm on October 19th wins.
RAVENNA IP-based networking technology
Dale Pro Audio
Merging Technologies
reverb.com
THD-Labs / Automation for your SSL
Artel Video Systems
Heartland Video Systems, Inc.
Markertek Broadcast Supply Specialists
Dual row, 24 Channel by 24 Channel
DB25 to DB25 patchbay wiring price:
(12) QTP-DB25M $12.04 = $144.48
(24) CAT6-10-Green $7.80 = $187.20
6 cable price: $331.58
Checking the spacing fit for QTP-DB25M adapters.
Not a single problem detected. With all signals balanced and power on two different phases, no measurable induced noise detected.
Ask us about Bit-Tree patchbays
Blue are the boys, White are the Girls.
I had an integrator call today asking what the compatible pin outs of the QTP-DB25 adapters were .
QTP-DB25M and QTP-DB25M use the Tascam DB25 Pinout.
Channels 1-4 terminate to one RJ45 and 5-8 to the other.
If you are using AES in and out the pin out is identical.
CH 1-4 are IN 1-4 and CH 5-8 are OUTPUT 5-8 
The Third Compatible pin out is the Yamaha AES pin out. The QTP-DB25Y is only available in a male DB25 connector. The IN the first RJ45 and OUT the second.
All the RJ 45 connectors terminate to the TIA -B standard and use the following pair and polarity designation
