9.1 EP product overview EP is a licensed program that enables communication controllers to support the connection of link-attached binary synchronous communication (BSC) and start-stop devices (such as terminals and printers) to host applications over a byte channel. The devices typically supported by EP are: BSC 3270 devices that exchange information with non-SNA applications (such as BTAM applications) BSC remote job entry (RJE) devices such as 2780 and 3780 Start-stop devices that exchange information with non-SNA applications (such as BTAM applications). CICS/BTAM or JES/RTAM Applications SNA Applications VTAM (CICS, IMS, JES) Byte Channel Byte, Block, or ESCON