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 kΩ 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 (VIL)0 V 0.5 V
Input high voltage (VIH)2.2 V 5 V
Output low voltage (VOL), at 5 mA —0.4 V
Output high voltage (VOH), at 5 mA 2.4 V —