External Triggering; Input Trigger Requirements; Figure 9-4 Trigger Link Connection Operation; Figure 9-5 Trigger Link Input Pulse Specifications - Keithley 6514 Instruction Manual

External triggering

Input and output triggers are received and sent via the rear panel TRIGGER LINK connector.
The trigger link has six lines. At the factory, line #2 is selected for output triggers and line #1 is
selected for input triggers. These input/output assignments can be changed as previously
explained in this section. The connector pinout is shown in Figure 9-4.
Figure 9-4
Trigger link connection
operation

Input trigger requirements

An input trigger is used to satisfy event detection for a trigger model layer that is using the
TLINK control source. The input requires a falling-edge, TTL compatible pulse with the speci-
fications shown in Figure 9-5.
Figure 9-5
Trigger link input
pulse specifications
Rear Panel Pinout
8 7 6
3
5 4
2 1
Trigger Link
Triggers on
Leading Edge
TTL High
(2V-5V)
TTL Low
(<0.8V)
10µs
Minimum
Pin Number Description
1
Trigger Link 1
2
Trigger Link 2
3
Trigger Link 3
4
Trigger Link 4
5
Trigger Link 5
6
Trigger Link 6
7
Ground
8
Ground
Triggering 9-11