3. External Connection
Digital I/O signals Connection
The digital I/O signal can be used .as the control signal (external trigger input signal and sampling clock
input signal, etc.), too. The following sections show examples.
All the digital I/O signals are LVTTL (3.3VDC) level signals.
Digital Input
Digital Ground
Terminal
CN1
Cable
Target
10k
Ω
Figure 3.9. Digital Input Connection
Digital Ground
Terminal
CN1
Cable
Target
Digital Output
I
OL
=24mA
Figure 3.10. Digital Output Connection
CAUTION
Do not short the output signals to analog ground, digital ground, and/or power line. Doing so may
damage the terminal.
Each input accepts 5V TTL level signals.
Reference
For the operation timing when using it as control signal, see ”Control Signal Timings” in Chapter 7
“About Hardware - Control Signal Timings”.
CAUTION
The external trigger signal is fixed to the following signal location when using C-LOGGER.
DI00 : External start trigger signal input
* The external stop tripper and external clock cannot be used.
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AIO-160802AY-USB
