The MultiFaceCard II/III controls, among other things, a dual port EIA RS-232C (CCITT V.28) communications interface with a multiple character buffer.
Input and output for each MultiFaceCard III line may set to a maximum baud rates of 1152000. Formula for baud rate: Baud = 230400 / N with 1 < N < 65536.
Input and output for each MultiFaceCard II line may set to a maximum baud rates of 57600. Formula for baud rate: Baud = 115200 / N with 1 < N < 65536.