This exit allows you to exercise more control over your BSC RJE remote devices. With this exit you can implement exit routines to:

• Selectively perform additional security checks beyond the standard password processing of the signon card image.
• Selectively limit both the number and types of remote devices that can be on the system at any one time.
• Selectively bypass security checks.
• Implement installation-defined scanning of signon card images.
• Collect statistics concerning RJE operations on the BSC line and report the results of the activity.

See Sample code for Exit 17 and Exit 18 for a sample code for Exit 17.