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7000 series readout system: Difference between revisions
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→Probe interface: typo
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==Probe interface== | ==Probe interface== | ||
Most 7000 series plugins have rings around the BNC input sockets that allow attached probes to interface with the readout system. The probe connector includes a contact pin connecting this ring. A resistor connected to ground encodes the probe attenuation, e.g. 11 kOhm indicates a x10 probe. If the probe includes an Identify switch at the tip, this connects the readout pin directly to ground.The [[Media:Tek-plugin-readout.jpg|plug-in circuit] uses the shift instructions in time slot 1 to implement the change of range. | Most 7000 series plugins have rings around the BNC input sockets that allow attached probes to interface with the readout system. The probe connector includes a contact pin connecting this ring. A resistor connected to ground encodes the probe attenuation, e.g. 11 kOhm indicates a x10 probe. If the probe includes an Identify switch at the tip, this connects the readout pin directly to ground.The [[Media:Tek-plugin-readout.jpg|plug-in circuit]] uses the shift instructions in time slot 1 to implement the change of range. | ||
==Custom chips== | ==Custom chips== | ||