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The binary files given here can be programmed into 27C256-EPROMs of SYMEK and compatible TNC2 (TNC2H, TNC2S, TNC21S) by use of a suited EPROM programmer. (format: .zip)
TF27b - 10 Kanal (16k) TF27b (Nord><Link) 10-channel (Standard)
TF27 - 27b-Kanal (16k) TF27b (Nord><Link) 27-channel
6-pack für TNC2 (3k) sixpack Firmware