The 1594-02 detects presence of a contact closure to ground on any of up to 96 inputs and provides a serial data stream which provides real time indication of each channel’s status (closure to ground or open). The internal processor sequentially polls up to 96 inputs by a 96 channel multiplexer and provides a continuous serial data stream containing a header code followed by 96 bits of information which are logic one if the corresponding input has a closure to ground and logic zero if the corresponding input is open. A check sum byte follows for error detection. The output data is 9600 baud, no parity, 8 bits, 1 stop at RS232C levels. A 90 – 260 VAC power supply provide DC power to the 1594-02. The unit is housed in a 1 3/4”, rack mount chassis.
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