RS-232 Interface
6-15
Hardware Handshaking
The data interface consists of an RS-232 port designed to operate either with or without the
hardware handshaking lines,
Request to Send
(RTS), and
Clear to Send
(CTS).
If Standard RTS/CTS handshaking is not selected, scan data is transmitted as it becomes
available. If Standard RTS/CTS handshaking is selected, scan data is transmitted according
to the following sequence:
•
The scanner reads the CTS line for activity. If CTS is de-asserted, the scanner waits
up to the Host Serial Response Time-out for the host to de-assert the CTS line. If,
after Host Serial Response Time-out (default), the CTS line is still asserted, the
scanner sounds a transmit error, and any scanned data is lost.
•
When the CTS line is de-asserted, the scanner asserts the RTS line and waits up to
the Host Serial Response Time-out for the host to assert CTS. When the host asserts
CTS, data is transmitted. If, after Host Serial Response Time-out (default), the CTS
line is still de-asserted, the scanner sounds a transmit error, and discards the data.
•
When data transmission is complete, the scanner de-asserts RTS 10 msec after
sending the last character.
•
The host should respond by de-asserting CTS. The scanner checks for a de-asserted
CTS upon the next transmission of data.
During the transmission of data, the CTS line should be asserted. If CTS is de-asserted for
more than 50 ms between characters, the transmission is aborted, the scanner sounds a
transmission error, and the data is discarded.
If the above communications sequence fails, the scanner issues an error indication. In this
case, the data is lost and must be rescanned.
If Hardware Handshaking and Software Handshaking are both enabled, Hardware
Handshaking takes precedence.
The DTR signal is jumped to the active state.
Summary of Contents for Duraline WLS 8400 ER Series
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Page 3: ...WLS 8400 Product Reference Guide February 2005...
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Page 60: ...WLS 8400 Product Reference Guide 5 2 Keyboard Maps 5 15 ASCII Character Set 5 18...
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Page 189: ...Symbologies 8 43 Do Not Convert I 2 of 5 to EAN 13 Disable...
Page 208: ...WLS 8400 Product Reference Guide 9 2...
Page 216: ...WLS 8400 Product Reference Guide 9 10...
Page 229: ...Advanced Data Formatting 10 13 RSS Expanded Code 128...
Page 232: ...WLS 8400 Product Reference Guide 10 16 Code Types continued Trioptic Code 39 Code 11 EAN 128...
Page 238: ...WLS 8400 Product Reference Guide 10 22 Code Lengths continued 29 Characters 30 Characters...
Page 242: ...WLS 8400 Product Reference Guide 10 26 Numeric Keypad continued 6 7 8 9 Cancel...
Page 277: ...Advanced Data Formatting 10 61 Keyboard Characters continued Send Send Send Send Send Send...
Page 291: ...Advanced Data Formatting 10 75 Keyboard Characters continued Send z Send Send Send Send...
Page 297: ...Advanced Data Formatting 10 81 Send ALT Characters continued Send Alt 6 Send Alt...
Page 314: ...WLS 8400 Product Reference Guide 10 98 Send GUI 2 Send GUI 3...
Page 323: ...Advanced Data Formatting 10 Alphanumeric Keyboard Space...
Page 324: ...WLS 8400 Product Reference Guide 10 108 Alphanumeric Keyboard continued Dash...
Page 325: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued...
Page 326: ...WLS 8400 Product Reference Guide 10 110 Alphanumeric Keyboard continued...
Page 328: ...WLS 8400 Product Reference Guide 10 112 0 1 2 3...
Page 329: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued 4 5 6 7 8 9...
Page 330: ...WLS 8400 Product Reference Guide 10 114 Alphanumeric Keyboard continued A B C D E F...
Page 331: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued G H I J K L...
Page 332: ...WLS 8400 Product Reference Guide 10 116 Alphanumeric Keyboard continued M N O P Q R...
Page 333: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued S T U V W X...
Page 335: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued a b c d e f...
Page 336: ...WLS 8400 Product Reference Guide 10 120 Alphanumeric Keyboard continued g h i j k l...
Page 337: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued m n o p q r...
Page 338: ...WLS 8400 Product Reference Guide 10 122 Alphanumeric Keyboard continued s t u v w x...
Page 339: ...Advanced Data Formatting 10 Alphanumeric Keyboard continued y z...
Page 340: ...WLS 8400 Product Reference Guide 10 124...
Page 341: ...A Standard Default Parameters...
Page 342: ...WLS 8400 Product Reference Guide A 2...
Page 350: ...WLS 8400 Product Reference Guide A 10...
Page 351: ...B Programming Reference Symbol Code Identifiers B 3 AIM Code Identifiers B 4...
Page 352: ...WLS 8400 Product Reference Guide B 2...
Page 358: ...WLS 8400 Product Reference Guide C 2...
Page 359: ...Sample Bar Codes C 3 UPC A UPC E UPC E1 0 12345 67890 5 0 123456 5 1 123456 2...
Page 360: ...WLS 8400 Product Reference Guide C 4 EAN 13 EAN 8 Code 39 3 456789 012340 1234 5670 123ABC...
Page 361: ...Sample Bar Codes C 5 Trioptic Code 39 Code 93 Code 11 456123 12345ABCDE 1234567890...
Page 363: ...D Numeric Bar Codes 0 1 D 3 2 3 4 D 4 5 6 7 D 5 8 9 D 6 Cancel D 7...
Page 364: ...WLS 8400 Product Reference Guide D 2...
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Page 386: ...WLS 8400 Product Reference Guide GL 16...
Page 392: ...WLS 8400 Product Reference Guide IN 6...
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