5250 support

x3270 does not support 5250 emulation (the terminals used by AS/400 and IBM i hosts). However, these hosts have a front end that translates between the 3270 and 5250 protocols.

The front end uses sequences of 3270 PF keys to perform various 5250-specific operations, as well as to emulate 5250 F keys. For example, the 5250 Clear function is obtained with the 3270 PF3 key (the action PF(3)). The 5250 F3 key is obtained with the two-key sequence PA1 PF3 (the actions PA(1) PF(3)).

Full documentation of the 5250 front end is here.