RS-232 Interface 8 - 13
Hardware Handshaking (continued)
Software Handshaking
This parameter offers control of the data transmission process in addition to, or instead of, that offered by hardware
handshaking. There are five options.
If software handshaking and hardware handshaking are both enabled, hardware handshaking takes precedence.
•
None
: Select this option to transmit data immediately. No response is expected from host.
•
ACK/NAK
: If you select this option, after transmitting data, the digital imager scanner expects either an ACK
or NAK response from the host. When it receives a NAK, the digital imager scanner transmits the same data
again and waits for either an ACK or NAK. After three unsuccessful attempts to send data after receiving
NAKs, the digital imager scanner issues an error indication and discards the data.
The digital imager scanner waits up to the programmable Host Serial Response Time-out to receive an ACK
or NAK. If the digital imager scanner does not get a response in this time, it issues an error indication and
discards the data. There are no retries when a time-out occurs.
•
ENQ
: If you select this option, the digital imager scanner waits for an ENQ character from the host before
transmitting data. If it does not receive an ENQ within the Host Serial Response Time-out, the digital imager
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.
RTS/CTS Option 2
RTS/CTS Option 3
Содержание DS6707-DP20411ZZR - Symbol Digital Scanner DS6707-DP
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Страница 3: ...Symbol DS6707 Digital Imager Scanner Product Reference Guide 72E 83978 06 Revision A May 2009...
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Страница 15: ...Table of Contents xiii Index Tell Us What You Think...
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Страница 40: ...2 16 Symbol DS6707 Digital Imager Scanner Product Reference Guide...
Страница 68: ...4 20 Symbol DS6707 Digital Imager Scanner Product Reference Guide...
Страница 97: ...SSI Interface 6 5 Baud Rate continued Baud Rate 19 200 07h 38 400 08h 57 600 0Ah 115 200 0Bh 230 400 0Ch...
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Страница 253: ...Advanced Data Formatting 11 13 Code Types continued MSI GS1 128 UPC E1 Bookland EAN Trioptic Code 39 Code 11 Code 32...
Страница 265: ...Advanced Data Formatting 11 25 Numeric Keypad continued 7 8 9 Cancel...
Страница 293: ...Advanced Data Formatting 11 53 Keyboard Characters continued Send Send Send Send Send Send Send...
Страница 295: ...Advanced Data Formatting 11 55 Keyboard Characters continued Send 2 Send 3 Send 4 Send 5 Send 6 Send 7 Send 8...
Страница 297: ...Advanced Data Formatting 11 57 Keyboard Characters continued Send Send A Send B Send C Send D Send E Send F...
Страница 299: ...Advanced Data Formatting 11 59 Keyboard Characters continued Send N Send O Send P Send Q Send R Send S Send T...
Страница 301: ...Advanced Data Formatting 11 61 Keyboard Characters continued Send Send Send Send _ Send Send a Send b...
Страница 303: ...Advanced Data Formatting 11 63 Keyboard Characters continued Send j Send k Send l Send m Send n Send o Send p...
Страница 305: ...Advanced Data Formatting 11 65 Keyboard Characters continued Send x Send y Send z Send Send Send Send...
Страница 310: ...11 70 Symbol DS6707 Digital Imager Scanner Product Reference Guide Send ALT Characters continued Send Alt Send Alt...
Страница 331: ...Advanced Data Formatting 11 91 Alphanumeric Keyboard Space Single Close Quote Dash...
Страница 332: ...11 92 Symbol DS6707 Digital Imager Scanner Product Reference Guide Alphanumeric Keyboard continued Comma...
Страница 333: ...Advanced Data Formatting 11 93 Alphanumeric Keyboard continued...
Страница 336: ...11 96 Symbol DS6707 Digital Imager Scanner Product Reference Guide Alphanumeric Keyboard continued 6 7 8 9 A B C...
Страница 337: ...Advanced Data Formatting 11 97 Alphanumeric Keyboard continued D E F G H I J...
Страница 338: ...11 98 Symbol DS6707 Digital Imager Scanner Product Reference Guide Alphanumeric Keyboard continued K L M N O P Q...
Страница 339: ...Advanced Data Formatting 11 99 Alphanumeric Keyboard continued R S T U V W X...
Страница 341: ...Advanced Data Formatting 11 101 Alphanumeric Keyboard continued d e f g h i j...
Страница 342: ...11 102 Symbol DS6707 Digital Imager Scanner Product Reference Guide Alphanumeric Keyboard continued k l m n o p q...
Страница 343: ...Advanced Data Formatting 11 103 Alphanumeric Keyboard continued r s t u v w x...
Страница 344: ...11 104 Symbol DS6707 Digital Imager Scanner Product Reference Guide Alphanumeric Keyboard continued y z...
Страница 354: ...A 10 Symbol DS6707 Digital Imager Scanner Product Reference Guide...
Страница 362: ...B 8 Symbol DS6707 Digital Imager Scanner Product Reference Guide...
Страница 363: ...Appendix C Sample Bar Codes Code 39 UPC EAN UPC A 100 123ABC 0 12345 67890 5...
Страница 366: ...C 4 Symbol DS6707 Digital Imager Scanner Product Reference Guide Maxicode QR Code US Postnet...
Страница 367: ...Sample Bar Codes C 5 UK Postal...
Страница 368: ...C 6 Symbol DS6707 Digital Imager Scanner Product Reference Guide...
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