Counter Section; Environmental - Measurement Computing USB-DIO96H User Manual

USB-DIO96H User's Guide
The daisy chain power output option allows multiple MCC USB Series boards with a USB hub
Note 1:
output port to be powered from a single external power source in a daisy chain fashion.
The voltage drop between the input of one module and its daisy chain output is 0.5 V maximum.
You should plan for this voltage drop when configuring a daisy chain system to assure
functionality of the last board in the chain.

Counter section

Pin name (Note 2)
Counter type
Number of channels
Input source
Input type
Resolution
Schmidt trigger hysteresis
Input leakage current
Maximum input frequency
High pulse width
Low pulse width
Input high voltage
Input low voltage
CTR is a Schmitt trigger input protected with a 1.5 K Ohm series resistor.
Note 2:

Environmental

8
7
6
5
4
3
2
1
0
0 10 15
Table 4. Counter specifications
Graph 1.Operating temperature de-rating curve (Note 3)
Power Vs. Ambient
20 25 30 35
Tem perature (C)
CTR
Event counter
1
CTR screw terminal
TTL, rising edge triggered
32 bits
20 mV to 100 mV
±1 µA
1 MHz
500 ns min
500 ns min
4.0 V min, 5.5 V absolute max
1.0 V max, –0.5 V absolute min
40 45 50
4-2
Specifications
55 60 65 7 0