Features:
- Communicates with a single CP/M requester connected to the PC serial port.
- Multiple requesters supported by starting several instances of the program.
- Uses the RS232 protocol described in Appendix E of the CP/NET documentation.
- Emulates either version 1.1 or 1.2 of CP/NET.
- Working 1.1 and 1.2 SNIOS modules for the P112 CPU board are included.
More details here.