IBM PC/3270 Host Connected Converged Keyboard
Provided by the ASK Keyboard Directory
eg, P/N 1393656
IBM-made 122-key host-connected (terminal emulator) Converged Keyboard for IBM PC/AT and PS/2 systems running IBM Personal Communications/3270 software. It's unique amongst Type 1 122-key Model Ms for having a cable terminating in a PS/2 (6-pin Mini-DIN) plug. Its 24-key function key bank has "PFxx" nomenclature legends.