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in this time, it issues an error indication and discards the data. There are no retries when a time-out
occurs.
ENQ: When this option is selected, the scanner waits for an ENQ character from the host before transmitting data. If an ENQ
is not received within the Host Serial Response Time-out, the scanner issues an error indication and discards the data. The
host must transmit an ENQ character at least every Host Serial Response Time-out to prevent transmission errors.
ACK/NAK with ENQ: This combines the two previous options. For re-transmissions of data, due to a NAK from the host,
an additional ENQ is not required.
XON/XOFF: An XOFF character turns the scanner transmission off until the scanner receives an XON character. There are
two situations for XON/XOFF:
· XOFF is received before the scanner has data to send. When the scanner has data to send, it waits up to Host Serial
Response Time-out for an XON character before transmission. If the XON is not received within this time, the scanner
issues an error indication and discards the data.
· XOFF is received during a transmission. Data transmission then stops after sending the current byte. When the scanner
receives an XON character, it sends the rest of the data message. The scanner waits up to 30 seconds for the XON.
*
None
ACK/NAK
ENQ
Содержание LS 4208
Страница 1: ...Symbol 400 1166 021 LS 4208 Product Reference Guide...
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Страница 3: ...LS 4208 Product Reference Guide 72 69413 01 Revision A May 2005...
Страница 5: ...Revision History Changes to the original manual are listed below Change...
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Страница 33: ...2 2 LS 4208 Product Reference Guide...
Страница 41: ...2 10 LS 4208 Product Reference Guide Decode Zone light...
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Страница 73: ...Disable Caps Lock Override...
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Страница 96: ...Even Mark Space None...
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Страница 141: ...WARNING...
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Страница 152: ...WARNING...
Страница 155: ...issues the decode beep Beep On Successful Transmit Beep At Decode Time Do Not Beep...
Страница 161: ...123Scan Introduction 11 3 Communication with 123Scan 11 3 123Scan Parameter 11 3...
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Страница 179: ...Do Not Transmit UPC E Check Digit...
Страница 221: ...Symbologies 12 49 Redundancy Level continued Redundancy Level 1 Redundancy Level 2 Redundancy Level 3 Redundancy Level 4...
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Страница 242: ...A 8 LS 4208 Product Reference Guide...
Страница 243: ...Programming Reference Symbol Code Identifiers B 3 AIM Code Identifiers B 4...
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Страница 250: ...C 2 LS 4208 Product Reference Guide...
Страница 254: ...C 6 LS 4208 Product Reference Guide...
Страница 255: ...Numeric Bar Codes Numeric Bar Codes D 3 Cancel D 4...
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