It's a single conductor with a woven shield, unbalanced, as is the integral 4061 cable. These are "two-wire" connection microphones, rather than "three-wire" connection mics.
Conductor = signal & +5 to 10VDC power
Shield = ground
A standard XLR would work, but I'd not use that connector because it would be too easy to plug it into preamp or recorder input with 48V Phantom Power switched on, which would fry the microphone(s).
I'm using TA3 mini-XLRs not as a standard mic connector for a single balanced microphone channel, but wired as an unbalanced stereo connection for two channels. Both microdot mic cables terminate to a single TA3F female mini XLR wired as follows:
Ground (both channels) to Pin 1
Signal 1 (L) to Pin 2
Signal 2 (R) to Pin 3
That in turn connects to a pair of Naiant PFAs (one for each channel) via a single TA3M male mini XLR, which is wired the same way.
Is this cable configured with the standard 2 conductors and a shield? I'm wondering if your process of cutting the cable in half would work if I wanted to put standard size XLR connectors on the opposite end of the microdot. I have two DPA 4061s that came with their barrel adapters. It would be nice to have a few backup adapter cables without having to spend $100 each for the DPA barrels.
If I read you correctly, I think you misunderstand two points-
First, the microphones cannot be powered directly by simply wiring them to a full sized XLR and plugging that into a device providing 48V phantom power. That will fry the mics. The require a device which converts higher voltage phantom power to the 5 to 10VDC power required by the microphone. That device can be a DPA microdot>XLR adapter, a Naiant PFA adapter, some other similar voltage adapter, or a battery box, low-voltage preamp, etc..). The Naiant PFAs can be supplied with various connector types. In my case they are wired in pairs to a single TA3M male mini-XLR as described above. In other cases they are wired in pairs to 3.5mm stereo mini-jacks. In others they are used individually like the DPA microdot>XLR adapters. The DPA microdot>XLR adapters sell for about $100 each, the Naiant PFAs are available in multiple configurations (they can also provide gain, and/or polarization voltage for mics which require that), but in this simple configuration are considerably less costly while providing the same functionality. I also prefer the PFAs because they have a short pig-tail input with a connector on the end, rather than the hard-mounted female mircodot connection of the DPA adapter which protrudes from the end of the adapter making the cable and microdot connector far more vulnerable to mechanical stress.
Second, the microdot barrel connectors are simple threaded coaxial female barrels which connect two male microdots. They are used to connect the male microdot end of the microphone cable to a male microdot terminated cable such as the standard DPA microdot extension cables. Use of a female terminated extension cable like the one's I'm using eliminates the need for the barrel connector. The male dot terminated mic cable then connects directly to the female dot terminated extension cable. The microdot barrel adapters aren't expensive, but they are small, easy to loose, and need to be tightened on both sides of the connection.
This is a photo of a threaded coaxial barrel connector (not microdot sized, this one is larger). The microdot ones are usually gold plated, and fully threaded without the hex part in the middle-
This is a DPA mircodot >XLR adapter-
Here are three Naiant PFA adapters-