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10-8 Triggering

Trigger link

Input and output triggers are received and sent via the rear panel TRIGGER LINK connec-

tor. The trigger link has four lines. At the factory, line #2 is selected for output triggers, and line

#1 is selected for input triggers. These input/output line assignments can be changed from the

CONFIGURE TRIGGER menu. See Conﬁguring triggering later in this section. The connector

pinout is shown in Figure 10-2.

Input trigger requirements

An input trigger is used to satisfy event detection for a trigger model layer that is conﬁgured

for the TRIGGER LINK event. See Trigger model. The input requires a falling-edge, TTL com-

patible pulse with the speciﬁcations shown in Figure 10-3.

8 7 6

4 3

2 1

Rear Panel Pinout

Pin Number

Description

Trigger Link 1

Trigger Link 2

Trigger Link 3

Trigger Link 4

Trigger Link 5 (not used)

Trigger Link 6 (not used)

Ground

gure

ear panel pinout

TTL High

(2V – 5V)

Triggers on

Leading Edge

TTL Low

(≤0.8V)

10µs

Minimum

gure

Trigger link input pulse

speciﬁcations

Keithley 6430 User Manual

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