Announcing Stock of our QTB DB25 to AES-72 Type 2O Adapters
Adapt ‘Tascam’ AES-59 DSub Pinout to two AES-72-2O RJ45 connectors.
AES-72 Type-2O is compatible with brands such as:
Sescom
Sound Tools
Double PCB Base shrouds all exposed solder connections, eliminating potential shorts.
Available through Catherine North Electronics
Announcing Stock of our QTB DB25-Y to RJ45 adapters.
Adapt Yamaha’s AES Pinout to two AES-72-4E connectors.
Quickly convert a ‘Yamaha’ AES-Pinout D-Sub connector to 2x RJ-45 and Cat5e/6 cables.
Double PCB Base shrouds all exposed solder connections, eliminating potential shorts.
Available through Catherine North Electronics
Announcing Stock of our QTB DB-25 to RJ-45 Adapters!
Both genders of ‘Tascam’ D-Sub are available, with 4-40 Captive Screws and Nuts.
AES72-Type 4E pinout on the RJ45.
Quickly convert a ‘Tascam’ AES-59 D-Sub connector to 2x RJ-45 and Cat5e/6 cabling.
Double PCB Base shrouds all exposed solder connections, eliminating potential shorts.
Available through Catherine North Electronics
from:
http://www.aes.org/standards/comments/comments-draft-aes72-xxxx-190215.cfm
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. 
4 Channels of audio over CAT5
