I use both modes: TED2 TX -> TED2 RX with ALGE Timing software (ExcelWrite and COMtoFile) and also TED2 TX -> TED2 RX -> ALGE Timy3 with Msports Pro software (I have the 5x series version, it doesn't know TED2).
I made the cable to connect the Timy myself, it is not original. It is a simple serial transmission in one direction. The schematic is public at ALGE Timing.
So far I am rather testing the capabilities of the device, especially the practical range in different terrain. Therefore, so far only at small sporting events and with the support of a thorough backup.
I bought external magnetic antennas because it is difficult to work with a rod antenna in the car or on the table. I have so far successfully tested the use up to a distance of 300m.
I miss the possibility to enter the pulse manually (for example, in the event of a photocell failure). Therefore, I have to connect a cable with a manual button in parallel to the photocells.