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* ''Aux Z Axis'' − Current-driven input to mainframe allowing plugins to modulate beam intensity, e.g. in dual timebase A intensified by B display mode; driven only when plug-in output is displayed (see ''MF Ch Switch'' above). | * ''Aux Z Axis'' − Current-driven input to mainframe allowing plugins to modulate beam intensity, e.g. in dual timebase A intensified by B display mode; driven only when plug-in output is displayed (see ''MF Ch Switch'' above). | ||
* ''Trigger In'' − Trigger signal input on H plugin, routed from V plugin's trigger output. Differential, 50 Ω per side, 50 mV/Div (differential). | * ''Trigger In'' − Trigger signal input on H plugin, routed from V plugin's trigger output. Differential, 50 Ω per side, 50 mV/Div (differential). | ||
* ''Aux Trigger In'' − Only used by [[7403N]] (= Left Vert trigger signal), [[7B52]]. | * ''Aux Trigger In'' − Only used by [[7403N]] (= Left Vert trigger signal), [[7503]], [[7B52]]. | ||
* ''GPIB lines'' − Control signal functions are the same as their [[GPIB interface|IEEE-488 (GPIB)]] equivalents. Time slot lines 2 to 9 double as IEEE-488 data lines. | * ''GPIB lines'' − Control signal functions are the same as their [[GPIB interface|IEEE-488 (GPIB)]] equivalents. Time slot lines 2 to 9 double as IEEE-488 data lines. | ||
* ''TS1−TS10'' − [[7000 series readout system|readout system]] time slot pulses. Idle 0, active −15 V. | * ''TS1−TS10'' − [[7000 series readout system|readout system]] time slot pulses. Idle 0, active −15 V. |