Network Card User Manual

FP-CTR-502 and cFP-CTR-502 18 ni.com
Specifications
The following specifications are typical for a range of –40 to 70 °C
unless otherwise noted.
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Input Characteristics
Number of channels.......................... 12 (8 count, 4 gate)
Input type.......................................... 5–30 VDC sourcing,
compatible with TTL devices
and other 5, 12, or 24 VDC
devices
Maximum input voltage.................... 30 VDC
Input threshold level (V
SUP
is the external supply voltage)
Typical ........................................ V
SUP
– 2.5 V
Maximum ................................... V
SUP
– 2.0 V
Minimum.................................... V
SUP
– 3.0 V
Input current limiting........................ 6 mA
Input bandwidth
Count inputs ............................... 50 kHz; 200 Hz with
software-enabled lowpass
filter
Gate inputs.................................. 50 kHz
Minimum input pulse width..............10 µs with 50 kHz,
2.5 ms with 200 Hz
Maximum off-state leakage
current for external devices............... 0.3 mA
Output Characteristics
Number of channels .......................... 4
Output type ....................................... 5–30 VDC sinking,
compatible with TTL devices
and other 5, 12, or 24 VDC
devices
Supply voltage .................................. 5–30 VDC, user-provided
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The operating range of the cFP-CTR-502 is –40 to 60 °C.