中文版
Description
Manufactured by General Electric as an Analog Input/Output Board, the IS200VAICH1DAB model is used in the Mark V system in either TMR or simplex applications. When used in a TMR system configuration, the input signals on the attached terminal boards, TBAIH1C or STAI board, will be fanned out to three VME racks, T, R, and S, each containing a VAIC board. The output signals on the VAIC board will be driven with a proprietary circuit creating a desirable current using all of the available VAIC boards. If any of the IS200VAICH1DAB models fail on the VME rack, the failed VAIC model will be removed from the output, and the remaining VAIC boards can continue to provide the correct current. When the model is used in a simplex configuration, the attached terminal boards will provide inputs to one of the VAIC models providing all current for the outputs.
IS200VAICH1DAB
During the operation of the IS200VAICH1DAB model, it will control four analog outputs and accept up to twenty analog inputs. The model has an analog MUX, A/D converter, D/A converter, and signal conditioning. There are two analog inputs in the model, either ±1 mA or 4-20 mA, which are selected by jumpers on the attached terminal boards. The analog output circuits are divided; two outputs can be configured at 0-200 mA or 4-20 mA, and the others are just 4-20 mA. Both inputs and outputs on the IS200VAICH1DAB model contain high-suppression circuitry to protect against high-frequency noise and surges.
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