spectranfid
A Spectranet networking FID driver for CP/M Plus
CP/M Plus on ZX Spectrum +3 has ability to load device drivers from normal disk files (with .fid extension) on boot. A Spectranet device brings networking abilities to the Spectrum computers. This driver allows connection to a remote disk image registered as N: and a remote character device (e.g. serial console) registered as SPCNET: (namely, one can type `DEVICE aux:=spcnet` to redirect AUX: to SPCNET: and use it as a serial port over ethernet).
Proven to work on the real thing...