
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LS 1220 Product Reference Guide
Figure 8-2. Software Handshaking
END SWITCHED ON?
WAIT FOR END CHARACTER
TO BE RECEIVED FROM HOST
DATA IS TRANSMITTED
ACK/NAK SWITCH ON?
WAIT FOR ACK OR NAK
RESPONSE FROM HOST
ACK RESPONSE?
TRY 3 TIMES?
YES 4
LONG BEEPS
NO RESPONSE AFTER 2 SECONDS THE UNIT BEEPS
4 TIMES TO INDICATE A TRANSMISSION ERROR
NO RESPONSE AFTER 2 SECONDS THE UNIT BEEPS
4 TIMES TO INDICATE A TRANSMISSION ERROR
YES
YES
YES
NO
SYMBOL IS DECODED
NO
NO
FINISHED
NO
Summary of Contents for LS 1220
Page 2: ...LS 1220 Product Reference Guide ...
Page 3: ......
Page 4: ...LS 1220 Product Reference Guide 70 12072 03 Revision A January 2003 ...
Page 23: ...1 8 LS 1220 Product Reference Guide Figure 1 3 LS 1220 Connector ...
Page 33: ...2 10 LS 1220 Product Reference Guide ...
Page 71: ...8 14 LS 1220 Product Reference Guide Figure 8 1 Hardware Handshaking ...
Page 97: ...9 6 LS 1220 Product Reference Guide Code Lengths cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 105: ...9 14 LS 1220 Product Reference Guide Prefix Suffix Values cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 108: ...9 17 Parameter Menus UPC Security Zone cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 120: ...9 29 Parameter Menus Intercharacter Delay cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
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