The Siemens TP-UART-IC (I call it TPUART, for short) can be used to
build a versatile interface for connecting a PC to a KNX TP1 (EIB TP)
network. Its datasheet is available at the
Website (Technical documentation / Transceivers / TPUART).
At the institute, we use an interface board with the following schematic
(built and assembled by institute members):
This board was used to develop the TPUART driver (deprecated) and the TPUART user mode backend of eibd.
As some people have asked how to get a TPUART interface board:
Please note that all information about getting a TPUART interface board are just examples. There may be
Build the board shown above yourself: This zip file contains the
schematic, the PCB layout (in PDF and EAGLE format), and the parts list.
We order our boards from prototype/small series PCB manufacturing
services such as PCB-Pool (www.pcbpool.com). TPUART ICs are available
from Opternus Components (www.opternus.com).
- For those who want pre-assembled boards: Fritz Praus (currently
technician at the institute) is selling complete boards as shown above.
If you are interested, please contact him directly: firstname.lastname@example.org.
Since recently, Siemens also offers an interface board for sale: Siemens
BTM PCB. To connect it to a PC, a level converter is required. It
worked with eibd when I tested it with the Siemens 5WG1 146-2AB11