Measurement Computing PCI-DIO48H/CTR15 - Manual (Page 20)

Counter 1 - User counter #14
Source: Available at user connector (CTR14CLK)
Gate: Available at user connector (CTR14GATE)
Output: Available at user connector (CTR14OUT)
Counter 2 - User counter #15
Source: Available at user connector (CTR15CLK)
Gate: Available at user connector (CTR15GATE)
Output: Available at user connector (CTR15OUT)
Clock input frequency 10 MHz max
High pulse width (clock input) 30 ns min
Low pulse width (clock input) 50 ns min
Gate width high 50 ns min
Gate width low 50 ns min
Input low voltage 0.8V max
Input high voltage 2.0V min
Output low voltage 0.4V max
Output high voltage 3.0V min
Crystal oscillator clock source 10 MHz, output available at user connector
(10MHz)
Frequency accuracy 50 ppm
ENVIRONMENTAL
Operating temperature range 0 to 50°C
Storage temperature range -20 to 70°C
Humidity 0 to 90% non-condensing
16