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7000 Series plug-in interface: Difference between revisions
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The [[7000-series scopes]] have two | The [[7000-series scopes]] have two vertical and one or two horizontal plug-in slots. | ||
The interconnect is a 76-pin PCB edge connector. | The interconnect on either slot type is a 76-pin PCB edge connector. The pinout between vertical and horizontal slots is not identical but | ||
compatible to the point that vertical plugins can be installed in horizontal slots and vice versa. However, in that case, some functions may | |||
be unavailable - for example, trigger signals are only routed to H slots so a timebase in a V slot must be externally triggered. | |||
Looking into the mainframe from the front panel, "A" pins are left and "B" are right of the connector centerline, and pins are numbered from 1 at the bottom to 38 on the top. A pins are on the [[:File:Tek-7a17-left-board.jpg|plug-in PCB's component side]], B pins on the [[:File:Tek-7a17-right-board.jpg|solder side]]. In the following table, (H) indicates signals available in horizontal slots only, (H-A) is horizontal slot A, (H-B) is horizontal slot B, and (V) denotes signals available in vertical slots only. | |||
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* ''X comp. inhibit'' − Connected to ground in amplifiers, switched to ground by timebase set to amplifier (X-Y) mode to enable X-Y delay compensation in scopes with that function ([[7904|7904 Opt.2]], [[7104|7104 Opt.2]]) | * ''X comp. inhibit'' − Connected to ground in amplifiers, switched to ground by timebase set to amplifier (X-Y) mode to enable X-Y delay compensation in scopes with that function ([[7904|7904 Opt.2]], [[7104|7104 Opt.2]]) | ||
* ''Signal'' − Signal output from plugin to mainframe. Differential, 50 Ω per side. 50 mV/Div (differential). | * ''Signal'' − Signal output from plugin to mainframe. Differential, 50 Ω per side. 50 mV/Div (differential). | ||
* ''Trigger'' − Copy of signal output from V plugin to mainframe. Differential, 50 Ω per side. 50 mV/Div (differential). | * ''Trigger'' − Copy of signal output from V plugin to mainframe. Differential, 50 Ω per side. 50 mV/Div (differential). Terminated on H slots. | ||
* ''Aux Y-Axis'' − Current-driven input to mainframe allowing vertical separation of two traces with dual timebase plugins. | * ''Aux Y-Axis'' − Current-driven input to mainframe allowing vertical separation of two traces with dual timebase plugins. | ||
* ''Dual Beam Aux Y-Axis'' − | * ''Dual Beam Aux Y-Axis'' − | ||
* ''Single Sweep Logic'' − | * ''Single Sweep Logic'' − | ||
* ''Single Sweep Reset'' − | * ''Single Sweep Reset'' − Switched to ground to reset single sweep. | ||
* ''Mainframe Mode'' − | * ''Mainframe Mode'' − | ||
* ''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. | * ''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. | ||