RS-232 Interface 8 - 11
Check Receive Errors
Select whether or not to check the parity, framing, and overrun of received characters. The parity value of received
characters is verified against the parity parameter selected above.
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).
Disable Standard RTS/CTS handshaking to transmit scan data as it becomes available. Select Standard RTS/CTS
handshaking to transmit scan data according to the following sequence:
•
The device reads the CTS line for activity. If CTS is asserted, the device waits up to 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 device sounds a transmit error, and discards any scanned data.
•
When the CTS line is de-asserted, the device asserts the RTS line and waits up to Host Serial Response
Time-out for the host to assert CTS. When the host asserts CTS, the device transmits data. If, after Host
Serial Response Time-out (default), the CTS line is not asserted, the device sounds a transmit error, and
discards the data.
•
When data transmission completes, the device de-asserts RTS 10 msec after sending the last character.
•
The host should respond by negating CTS. The device 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 deasserted for more than 50 ms
between characters, the device aborts transmission, sounds a transmission error, and discards the data.
If this communication sequence fails, the device 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.
*
Check For Received Errors
Do Not Check For Received Errors
NOTE
The DTR signal is jumpered to the active state.
Summary of Contents for MT2070
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Page 3: ...MT2070 MT2090 User Guide 72E 117859 06 Revision A June 2014 ...
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Page 22: ...xxii MT2070 MT2090 User Guide Index Glossary Tell Us What You Think ...
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Page 435: ...Advanced Data Formatting 14 25 Numeric Keypad continued 7 8 9 Cancel ...
Page 480: ...14 70 MT2070 MT2090 User Guide Send ALT Characters continued Send Alt Send Alt ...
Page 501: ...Advanced Data Formatting 14 91 Alphanumeric Keyboard Space Dash ...
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Page 507: ...Advanced Data Formatting 14 97 Alphanumeric Keyboard continued D E F G H I J ...
Page 508: ...14 98 MT2070 MT2090 User Guide Alphanumeric Keyboard continued K L M N O P Q ...
Page 509: ...Advanced Data Formatting 14 99 Alphanumeric Keyboard continued R S T U V W X ...
Page 511: ...Advanced Data Formatting14 101 Alphanumeric Keyboard continued d e f g h i j ...
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Page 540: ...A 10 MT2070 MT2090 User Guide ...
Page 548: ...B 8 MT2070 MT2090 User Guide ...
Page 549: ...Appendix C Sample Bar Codes UPC A UPC E 0 12345 67890 5 0 123456 5 ...
Page 551: ...Sample Bar Codes C 3 Trioptic Code 39 Code 93 Code 11 456123 12345ABCDE Æ1234567890Æ ...
Page 553: ...Sample Bar Codes C 5 PDF417 Data Matrix Maxicode ...
Page 554: ...C 6 MT2070 MT2090 User Guide QR Code US Postnet UK Postal ...
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Page 559: ...Appendix E Alphanumeric Bar Codes Alphanumeric Keyboard Space ...
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