 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] M. D. SOMERS       ]    PASS PROGRAM NOTE        ]     32119        ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: JULY 1987  ]
 ] IBM/282-7324       ]      RELEASE NOTE( )        ] REV A: 10/25/91  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI-8F AND SUBS                ]  CREW (X)  GROUND (X)  DUMP ONLY (X)]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW (X)  GNC ( )  VU ( )  SM/PL ( )] 0, G1, G2, G3, G6, G8, G9, S2,  ]
 ]                                   ] S4, PL9                         ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: SWITCHES, OPS, TRANSITIONS, FTS                  ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: SDPS                                           ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] OUTPUT SWITCH IN TERMINATE AT RS FORMATION                          ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] IF A GPC IS MODED TO RUN WITH ITS OUTPUT SWITCH IN TERMINATE,       ]
 ] FLIGHT CRITICAL (FC) BUS MASKS ARE SET AND NOT CLEARED UNTIL THE    ]
 ] OUTPUT SWITCH IS PUT TO NORMAL.  IF THE GPC IS SUBSEQUENTLY ADDED   ]
 ] TO A RS (WITHOUT HAVING CLEARED THE FC BUS MASKS), A F-T-S MAY      ]
 ] SUBSEQUENTLY OCCUR DUE TO DIVERGENT PROCESSING SINCE THIS GPC IS    ]
 ] NOT PARTICIPATING IN ANY I/O ON THE FLIGHT CRITICAL DATA BUSES.     ]
 ]                                                                     ]
 ] IN THE CASE OF A GPC WHOSE OUTPUT SWITCH IS PUT TO TERMINATE        ]
 ] AFTER THE GPC IS MODED TO RUN (AFTER THE OUTPUT TALKBACK IS         ]
 ] GRAY), THE RESULTS ARE DIFFERENT.  THE OUTPUT TALKBACK IS RESET TO  ]
 ] BARBERPOLE WHEN THE SWITCH IS MOVED TO TERM.  UPON ADDING THE GPC   ]
 ] TO A RS, ALL RS GPC'S SHOULD BYPASS ALL ELEMENTS ON THE STRING(S)   ]
 ] COMMANDED BY THE GPC WITH ITS OUTPUT SWITCH IN TERMINATE (DUE       ]
 ] TO I/O ERROR PROCESSING), BUT NO F-T-S WILL OCCUR.                  ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]                                                                     ]
 ] DO NOT ATTEMPT TO FORM A RS WITH A GPC WHOSE OUTPUT SWITCH IS IN    ]
 ] TERMINATE.                                                          ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: PATTI A. THORNTON    DATE 12/03/91]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD: ROBERT N. HINSON    DATE 12/05/91]                             ]
 ]     -------------------      ---------] S. N. HARDEE, JR.  12/19/91 ]
 ]PF MGR:ELIZABETH FOUNTAIN DATE 12/12/91]------------------- -------- ]
 ]       ------------------     ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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