How does CICS/Fax connect to the mainframe?
The standard way to connect CICS/Fax to z/OS or z/VSE is via TCP/IP. 3270 data streams are also supported. If you do not have eSendIT, you can still use software on the CICS/Fax PC to emulate an LPD or other printer. In this case, you "print" the data from the host into a folder on the CICS/Fax PC, and include the routing information (the $FAXIT records) at the start of each separate message.