Measurement Computing USB-DIO96H - Manual (Page 16)

USB-DIO96H User's Guide Specifications
16
Power
Table 2. Power specifications
Parameter Conditions Specification
USB +5 V input voltage range 4.75 V min to 5.25 V max
USB +5 V supply current All modes of operation <100 mA
External power input (Note 1) 5 VDC ± 5% (5 VDC power supply
provided)
External power supply
(included) MCC p/n PS-5V3AEPS 5 VDC, 15 W, 5% regulation
Alternate external power
supply From PC auxiliary power (cable not included) Jumper-selectable Molex ® connector
internal to case
Voltage supervisor limits 4.13 V > V
ext
or V
ext
> 5.59 V PWR LED = Off; (power fault)
4.13 V < V
ext
< 5.59 V PWR LED = On
Power supply current 2.7 A max
User 5 V output voltage range Available at 5 V screw terminals 4.0 V min, 5.25 V max
User 5 V output current
available Total from all 5 V screw terminals 50 mA max
Note 1: Voltage specification applies at barrel plug power input. The power supply provided with the board
meets this specification at the rated total power supply current. If a different power supply is used,
small line resistances could cause significant voltage drop between the power supply and the barrel
plug input.
Counter
Table 3. Counter specifications
Parameter Specification
Pin name (Note 2) CTR
Counter type Event counter
Number of channels 1
Input source CTR screw terminal
Input type TTL, rising edge triggered
Resolution 32 bits
Schmidt trigger hysteresis 20 mV to 100 mV
Input leakage current ±1 µA
Maximum input frequency 1 MHz
High pulse width 500 ns min
Low pulse width 500 ns min
Input high voltage 4.0 V min, 5.5 V absolute max
Input low voltage 1.0 V max, –0.5 V absolute min
Note 2: CTR is a Schmitt trigger input protected with a 1.5 kΩ series resistor.
Environmental
Table 4. Environmental specifications
Parameter Specification
Operating temperature range 0 °C to 60 °C
Storage temperature range –40 °C to 85 °C
Humidity 0% to 90% non-condensing