Appendix B
Specifications
NI CVS-1450 Series User Manual
B-2
ni.com
Network
Network interface ...................................10BaseT and 100BaseTX
Ethernet
Compatibility ..........................................IEEE 802.3
Communication rates ..............................10 Mbps, 100 Mbps,
auto-negotiated
Maximum cabling distance.....................100 m/segment
TTL Inputs and Outputs
Digital logic levels
TTL Inputs
Number of channels................................2
Maximum pulse rate ...............................2 MHz
Minimum pulse detected ........................500 ns
Power-on state ........................................Input (high-impedance)
61.9 k
Ω
pull-up to 5 V
TTL Outputs
Number of channels................................10
Output voltage range ..............................0 V to 5 V
Maximum pulse rate ...............................2 MHz
Level
Minimum
Maximum
Input low voltage (V
IL
)
0 V
0.5 V
Input high voltage (V
IH
)
2.2 V
5 V
Output low voltage (V
OL
), at 5 mA
—
0.4 V
Output high voltage (V
OH
), at 5 mA
2.4 V
—
