48 Connection of signals.4.6. Calculation of the total load power of L-502 outputcircuitsIf you intend to use L-502 output circuits to connect any external loads, then the total loadpower should not exceed the power specified in the specification (see section 5.7 on p. 56). Theload power should be estimated according to the procedure described below.The total load power taken from the L-502 power system is:where is the total load power taken from digital DO outputs in the "1" state (only forloads connected to the GND circuit);— power load removed from the DAC outputs;— power load, taken from the output of +15 V;— power load, taken from the output of -15 V;— power load, taken from the output of +3.3 V;In turn, the power summands of the corresponding i-th outputs must be calculated eitherthrough the known load current by the formula , or through the known loadresistance at the i-th outputThe power summands of the corresponding j-th outputs must be calculated eitherthrough the known load current by the formula , or through the known loadresistance at the j-th outputThe power and should also be calculated either through known load currentsby formulas , or through a known loadresistance , according to formulas ,All terms in the power formulas are positive, dimension: power — Watt, current — Ampere,resistance — Ohm
