5.13.4 :FCHannels <lsit> ....................................................................................................................................5-81
5.13.5 :BBMake <b> ............................................................................................................................................5-82
5.13.6 :SCHannel <b> .........................................................................................................................................5-82
5.13.7 :CPAir <b>................................................................................................................................................5-83
5.13.8 <CTYPe <name>......................................................................................................................................5-84
5.13.9 :POLE <NRf> ...........................................................................................................................................5-85
5.13.10 :STIMe <n> ...............................................................................................................................................5-87
5.13.11 :SAVE M<num>.......................................................................................................................................5-88
5.13.12 :RECall M<num>.....................................................................................................................................5-88
5.14 Sense Subsystems ........................................................................................................................................... 5-91
5.15 :SOURce subsystem........................................................................................................................................ 5-93
5.16 :STATus subsystem ........................................................................................................................................ 5-95
5.16.1 [:EVENt]? ..................................................................................................................................................5-96
5.16.2 :ENABle <NRf>......................................................................................................................................5-100
5.16.3 :PTRansition <NRf> ..............................................................................................................................5-104
5.16.4 :NTRansition <NRf> .............................................................................................................................5-109
5.16.5 :CONDition?...........................................................................................................................................5-111
5.16.6 :PREset.....................................................................................................................................................5-112
5.16.7 :QUEue commands................................................................................................................................5-113
5.17 :SYSTem Subsystem ......................................................................................................................................5-117
5.17.1 :PRESet ....................................................................................................................................................5-117
5.17.2 :POSetup <name>..................................................................................................................................5-117
5.17.3 :VERSion?................................................................................................................................................5-118
5.17.4 :ERRor?....................................................................................................................................................5-119
5.18 Trigger subsystem ........................................................................................................................................ 5-121
5.18.1 :INITiate commands..............................................................................................................................5-123
5.18.2 :ABORt ....................................................................................................................................................5-124
5.18.3 :IMMediate .............................................................................................................................................5-124
5.18.4 :COUNt <n> ...........................................................................................................................................5-125
5.18.5 :DELay <n>.............................................................................................................................................5-127
5.18.6 :SOURce <name>...................................................................................................................................5-128
5.18.7 :TIMer <n>..............................................................................................................................................5-130
5.18.8 :SIGNal ....................................................................................................................................................5-131
5.18.9 TCONfigure commands .......................................................................................................................5-131
6 Theory of Operation
6.1 Introduction....................................................................................................................................................... 6-1
6.2 Overall functional description.........................................................................................................................6-1
6.3 Control function.................................................................................................................................................6-3
6.3.1 Reset circuitry............................................................................................................................................ 6-3
6.3.2 Address decoding..................................................................................................................................... 6-3
6.3.3 Memory...................................................................................................................................................... 6-3
6.4 Relay control circuitry.......................................................................................................................................6-5
6.4.1 Backplane interface................................................................................................................................... 6-5
6.4.2 Switch card interface................................................................................................................................ 6-7
6.4.3 ID data circuits .......................................................................................................................................... 6-7
6.4.4 Relay control.............................................................................................................................................. 6-9
6.4.5 Power-on safeguard ................................................................................................................................. 6-9
6.4.6 Display board circuitry............................................................................................................................ 6-9
6.4.7 External control signals.......................................................................................................................... 6-11
6.4.8 IEEE-488 interface................................................................................................................................... 6-11
6.4.9 Power supplies........................................................................................................................................ 6-11
iv
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