User manual

2400 Series SourceMeter
®
User’s Manual Triggering 11-19
Trigger link
Input and output triggers are received and sent via the rear panel TRIGGER LINK
connector. The trigger link has four lines. At the factory, line #2 is selected for out-
put triggers, and line #1 is selected for input triggers. These input/output line
assignments can be changed from the CONFIGURE TRIGGER menu. (See “Con-
figuring triggering,” page 11-7.) The connector pinout is shown in Figure 11-5.
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 models,” page 11-20.) The
input requires a falling-edge, TTL compatible pulse with the specifications shown in
Figure 11-6.
Figure 11-5
Rear panel pinout
Figure 11-6
Trigger link input pulse specifications
876
5
43
21
Rear Panel Pinout
Pin Number
Description
1
2
3
4
5
6
7
8
Trigger Link 1
Trigger Link 2
Trigger Link 3
Trigger Link 4
Not connected
Not connected
Ground
Ground
TTL High
(2V  5V)
Triggers on
Leading Edge
TTL Low
(0.5V)