 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] K. BENIKE          ]    PASS PROGRAM NOTE        ]     33299        ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE:            ]
 ] VER/282-8451       ]      RELEASE NOTE( )        ] JULY 1987        ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] REL 19 AND SUBS               ]  CREW (X)  GROUND (X)  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        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: LDB, OPS, TRANSITIONS                            ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: SDPS                                           ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] LDB BUS ASSIGNMENTS AT OPS TRANSITION/MODE RECALL                   ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] AN OPS TRANSITION (OR MODE RECALL WITH A SET CHANGE) THAT WOULD     ]
 ] RESULT IN THE LDB BUSES BEING COMMANDED BY DIFFERENT GPC'S THAT     ]
 ] ARE NOT IN AN RS TOGETHER SHOULD NOT BE REQUESTED WHILE LDB         ]
 ] POLLING IS ENABLED. THIS IS BECAUSE OPS TRANSITION PROCESSING       ]
 ] WILL INITIATE THE LDB POLLING FUNCTION IN EACH GPC IN THE           ]
 ] PARTICIPATING SET IF THE PARTICIPATING SET COMMANDS AT LEAST ONE    ]
 ] OF THE LDB BUSES. IF ONE LDB BUS IS ASSIGNED TO A PARTICIPATING     ]
 ] GPC, AND THE OTHER LDB BUS IS ALREADY BEING POLLED BY A             ]
 ] NONPARTICIPATING GPC, POLLING WILL OCCUR ON BOTH LDB BUSES          ]
 ] SIMULTANEOUSLY.                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]                                                                     ]
 ] BEFORE REQUESTING AN OPS TRANSITION (OR MODE RECALL WITH A SET      ]
 ] CHANGE) WHILE LDB POLLING IS ENABLED, ENSURE THAT THE NBAT FOR      ]
 ] THE SELECTED OPS SPECIFIES THAT BOTH, OR NEITHER, OF THE LDB        ]
 ] BUSES IS TO BE ASSIGNED TO THE PARTICIPATING SET. NOTE THAT LDB     ]
 ] BUSES BEING ASSIGNED TO THE PARTICIPATING SET MUST NOT ALREADY      ]
 ] BE COMMANDED BY A NONPARTICIPATING GPC.                             ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: WYATT COOPER         DATE 08/04/88]                             ]
 ]    --------------------      ---------]                             ]
 ]SSD: SAM ANKNEY           DATE 08/10/88]                             ]
 ]    --------------------      ---------] JACK BOYKIN        08/17/88 ]
 ]PF MGR: MICHAEL BRIEDEN   DATE 08/08/88]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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