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H | S | P S S | P S S | P S S | P S S | P S S | P S |
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RXD | T 0 1 1 | 0 0 0 0 0 B P T 0 0 0 1 1 0 | 1 0 B P T 0 0 | 0 0 0 0 0 0 B P T 0 0 0 | 1 0 1 0 1 B P T 0 | 0 1 1 0 0 1 0 B P T 0 0 0 | 1 0 0 0 0 B P |
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TXD |
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CTS |
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RTS |
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DTR |
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DSR |
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t1: Less than 500 ms
t2: More than 1 word length
Sequence 1: The host computer sends the CONTROL command to the scanner.
X`06', `58', `00', `A8', `4C', `08'
Sequence 2: ACK for the CONTROL command is sent to the host computer.
X`FF'
Figure 6.6 Control command sequence (1/4)