Manual PCI-IDIO-16
6
Specification
Digital Inputs
•
Number of inputs:
Sixteen
•
Type:
Non-polarized, optically isolated from each other and
from the computer
•
Input voltage range:
2.5 to 50V DC or 2-36Vrms AC (50 to 10000 Hz) with
0.2V hysteresis
•
Isolation*:
500V
•
Input Resistance:
The opto-isolator diode current is constant at 2 mA
regardless of input voltage. Total input current is 4 mA
maximum at 50V
•
Interrupts:
When enabled by software, interrupts are generated
when digital inputs change state
•
Response Time:
5 mSe
c w/ filter, 50 μSec w/o filter
Protected FET Outputs
•
Number of outputs:
Sixteen in two groups of 8 channels each. In each group
4 channels are totally isolated and 4 channels have a
common ground
•
Output Type:
High Side Power MOSFET Switch. Protected against
short circuit, over temperature, ESD, capable of driving
inductive loads
•
Compliance Voltage:
5-34VDC (customer supplied) 40VDC absolute max
•
Current:
2A maximum (source only)
•
Turn-on time:
9
0μsec (typical)
•
Turn-off time
110
μsec. (typical)
* Notes on Isolation:
Opto-
Isolators, connector and FET’s are rated for at least 500V, but isolation
voltage breakdowns will vary and is affected by factors like cabling, spacing of pins, spacing between
traces on PCB, humidity, dust and other environmental factors. This is a safety issue so a careful
approach is required. For CE certification, isolation was specified at 40V AC and 60V DC. The design
intention was to eliminate the influence of common mode. Use proper wiring techniques to minimize
voltage between channels and to ground. For example, when working with AC voltages do not connect
the hot side of the line to an input.
