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National Instruments Corporation
33
SCC-68 User Guide
Specifications
This appendix lists the SCC-68 specifications. These ratings are typical at
25 °C unless otherwise stated.
Power Requirement
Power consumption (at +5 VDC, ±5%)
Typical ............................................ 1 mA with no signal
conditioning installed
Note
The maximum power consumption of the SCC-68 is a function of the SCC modules
installed and any circuits constructed on the general-purpose breadboard area. Refer to the
Power Supply Considerations
section for more information.
External Power Supply Requirements
Using an external power supply is optional. Any external power supply
used with the SCC-68 must meet the following requirements.
Voltage output........................................ 4.75 V min,
5.25 V max
Current output ........................................ 2 A max;
minimum current requirement
is load dependent.
External Power Supply Protection
The SCC-68 external power supply screw terminal is protected against
overcurrent, overvoltage, and reverse voltage.
Overcurrent ............................................ Fused at 2 ADC
Overvoltage and reverse voltage............ ±20 VDC max
±15V Power Supply
The ±15V power supply is only accessible by SCC modules. You may
access it using an SCC-FT01 module. Refer to Figure 14 and Figure 15.
Tolerance................................................ ±5%
Max load current .................................... 50 mA
