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INPUT AND OUTPUT CHANNELS FOR USE IN MAIL METER
INPUT AND OUTPUT CHANNELS FOR USE IN MAIL METER
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机译:邮件表中使用的输入和输出通道
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摘要
ABSTRACT OF THE DISCLOSUREAn improved input/output channel for linkinga computer control unit for an electronic postal meterto input/output units. The invention includes lightemitting diodes for converting unit-output electricalsignals to optical signals and phototransistors forconverting the unit-input optical signals to electricalsignals. Light-transmitting fibers are used to transmitthe optical signals between the meter and the input/outputunits.
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