User Manual

14.2 External I/O
390
You can input external signals as trigger sources.
When you are using several instruments, you can also synchronize triggers
(⇒ p. 391).
1 Connect the cables for the corresponding external input signals to the EXT TRIG
and GND terminals.
2 In the Trigger Settings screen, set External trigger to [On]. (⇒ p. 160)
14.2 External I/O
14.2.1 External Trigger Input (EXT TRIG)
Trigger Input Signals
Voltage range HIGH level: 3.0 to 5.0 V, LOW level: 0 to 0.8 V
Pulse width HIGH level: 50 ns or greater, LOW level: 50 ns or greater
Maximum input voltage -2 to 7 V
Signal Input Procedure
External signal input
Trigger event occurs.
EXT TRIG
HIGH
3.0 to 5.0 V
LOW
0 to 0.8 V
50 ns or greater
50 ns or greater
GND
150 pF
100 Ω
3.3 kΩ
5 V
EXT TRIG
[ ↑ ] [ ↓ ]
[↑]: Rising setting
[↓]: Falling setting
[ ↓ ][ ↑ ]
5 V
GND is common. It can be connected to any ground.
Connection procedure:
"14.1 Connecting External Control Terminals" (
⇒ p. 388)