Symbol-technologies MicroBase MRC-921 Uživatelský manuál stáhnout pdf (Strana 33)

signals Electronic impulses that transmit data from one

device to another.

two-way

communication

Exchange of information between two devices. After

each block of data, the receiving device sends a

positive or negative acknowledgment to the sending

device.

VDC Volts direct current. A unit of measure of electric

potential or potential difference in a unidirectional

electrical current.

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Symbol-technologies MicroBase MRC-921 Uživatelský manuál Strana 33