November 24, 1987

MXO-ON2 is a full-featured combination hardware and modem overlay for 
ON! computers.  It is based on the MXO-KPS4 overlay for the Kaypro and 
on Joe Wright's T3M-ON1 Term III overlay for the ON!.  It features full 
support for all major features of the Z80 DART including send-break and 
setting word length, stop-bits and parity.  Both true Hayes-compatibles 
and the semi-compatible Anchor modems are supported.  MXO-ON2 was 
created out of my personal preference for MEX114 over the IMP program 
supplied with the ON!.  IMP is a fine program within its design limits, 
but is severely lacking in flexibility for a dedicated MEXer like me.

  In general, MEX will operate in the same manner as with the ancestor 
Kaypro overlay, with the notable exception of radically re-written SET 
ANSWER and SET ORIG commands.  SET ANSWER now suspends MEX until a 
validated modem call is received or until a control-C local abort.  This 
will enable the astute MEX user to set up looping READ files for limited 
unattended access to the ON!, although it is no substitute for the true 
remote console capability of BYE or MEX Plus.  READ files that use this 
style of SET ANSWER can be found in the MEXWELCM.LBR file I released a 
couple of years ago for the old MXO-KP41 Kaypro overlay, which 
inadvertantly implemented the capability, but only for the internal 
Kaypro/TI modem.  It would be a relatively simple matter to implement 
the enhanced SET ANSWER and SET ORIG commands for other combination 
hardware/modem overlays for MEX - the MXO-SBSx series for the SB180 are 
also of the MXO-KPS4 lineage and are very good candidates for this hack.

Bruce Morgen

North American One-Eighty Group
P.O. Box #2781
Warminster PA  18974

Phone: 215-443-9031 (Voice & Data, East Coast business hours ONLY!)

RCP/M: Lillipute Z-Node, 312-649-1730 & 312-664-1730,
              300/1200/2400 baud, 24 hrs.