Input Probe System - HP 3563A Operating Manual

In put Probe System
The digital probe system consists of probes, pods, probe cables, and grabbers. The input probe leads
contain an RC network consisting of a
cables are shielded resistive transmission line. Each cable, probe, and pod assembly is (collectively)
4.5 feet long and contains 16 data channels, one clock channel, and a pod ground. See the
Installation Guide for labeling instructions.
Caution
The probe grounds are chassis (earth) grounds, not "floating" grounds.
I
Each input probe is a 12-inch twisted-pair cable connected to the cable at the pod. One end of the
probe contains an input RC network and a lead to connect to the target system. The other end of
the probe has a two-pin connector that plugs into the pod.
You can connect the probe directly to test pins on your target system or to grabbers. Grabbers are
spring-loaded connecting hooks designed to fit on adjacent IC pins. See figure 13-5. If you want to
connect to test pins without using the grabbers, the pins must be 0.63 mm (0.025 in.) square or round
pins with a diameter between 0.66 mm (0.026 in.) and 0.84 mm (0.33 in.). Most IC test clips work.
90.9 kQ resistor in parallel with an 8 pF capacitor. The input
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Digi al Overview: The Hardware
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