nSupports setting of flow
control (flow=none,cts_rts, xon_xoff).
nSupports setting of
parity (parity=even,odd, or none).
nSupports setting of
speed (speed= option, none gives list).
nHandles line desciplines
on Tru64 Unix.
nSingle line loopback
tests (enable=loopback)
nDual line loopback tests
(if=/dev/tty00 of=/dev/tty01)
nDual line between
different hosts and different OS’s too!
nLimited Tru64 modem
support (enable=modem, on Tru64).
nParallel loopback
support too (if=/dev/pig or /dev/pog, Agfa).