You cannot use any of the following terminals with Pass Thru:
HP 2607
HP 2621A
HP 2621P
HP 2640A
HP 2640N
HP 2640S
HP 2641A
HP 2644A
HP 2645R
IBM 3278
NOTE: The above terminal restrictions apply only to terminals
used with Pass Thru. As an HP 3000 user, you still can log on to
any system-supported terminal to run your applications that access
the SNA IMF intrinsics.