OMB-DAQ-2416-4AO User's Guide

 

Functional Details

+5 V

47 kΩ

+ V

JP1

 

 

Internal jumper

 

External pull-up resistor

disabled (placed on

 

 

 

center pin only)

 

 

 

 

DIO0

 

 

DIO1

 

 

DIO2

 

 

DIO3

 

 

DIO4

 

 

DIO5

 

 

DIO6

 

 

DIO7

Figure 18. Digital I/O external resistor configuration

Counter input terminals (CTR0, CTR1)

Two 32-bit event counters are built into the OMB-DAQ-2416-4AO. Each counter accepts frequency inputs up to 1 MHz.

Refer to the "Screw terminal pin out" diagrams starting on page 11 for the location of these pins. The internal counter increments when the TTL levels transition from low to high. The counter can count frequencies of up to 1 MHz.

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