UDAS-1001E Series Data Acquisition Systems
1-4
Digital Input/OutputDigital Input/Output
• 16 Programmable digital I/O channels. Groups of 8 separately programmable for input or
output.
• Digital inputs can be programmed to read digital signal status, detect a change-of-state or to
perform low speed event counting (up to 2 kHz).
• Digital outputs can drive TTL level signals.
• 8 of the 16 I/O channels can be configured for preset direction and output state levels for safe
power-up and reset situations.
CounterCounter
One 16-bit counter channel performs general purpose event counting and frequency measurement
up to 20 MHz up to 2 MHz for high-speed event counting.
TerminationTermination
The UDAS-1001E-3 and UDAS-1001E-4 units have built-in depluggable termination blocks for
connecting I/O signals. The UDAS-1001E-1 and UDAS-1001E-2 units have a 50-pin I/O connector
for attaching external termination. Information on termination panels is provided in Appendix B,
Accessories.
1.21.2 UDAS 1001E Series Functional DescriptionUDAS 1001E Series Functional Description
This section provides information on the following data acquisition functions:
• Analog input
• High-speed analog input
• Acquisition pacing and triggering
• Power supplied by the USB port or by an external power supply
1.2.11.2.1 Data Acquisition FunctionsData Acquisition Functions
Analog InputAnalog Input
The A/D converter on the UDAS device is a 12-bit converter with a throughput rate of 100 kHz.
For analog input:
• Programmable input voltage ranges are 0-10 V, ±5 V, and ±10 V.