7
2.2 TTL-232 Interface
Serial communication interface is usually used when connecting the engine to a host device (like PC, POS).
However, to ensure smooth communication and accuracy of data, you need to set communication
parameters (including baud rate, parity check, data bit and stop bit) to match the host device.
The serial communication interface provided by the engine is based on TTL-level signals. TTL-232 can be
used for most application architectures. For those requiring RS-232, an external conversion circuit is needed.
The conversion circuit is available only to some models.
Default serial communication parameters are listed below. Make sure all parameters match the host
requirements.
Parameter
Factory Default
Serial Communication
Standard TTL-232
Baud Rate
115200
Parity Check
None
Data Bits
8
Stop Bits
1
Hardware Flow Control
None
Summary of Contents for MS846
Page 1: ...1 MS846 User s Manual Version 1 0 Unitech 2D Image Scanner...
Page 12: ...12 27 Romania 28 Russia 29 Japan...
Page 19: ...19 4 Data Formatting 4 1 General Configuration Add CR Add LF Add CRLF Add TAB...
Page 26: ...26 Enable ENA JAN 8 Addenda Separator default Disable ENA JAN 8 Addenda Separator UPC...
Page 35: ...35 No check Char default Validate and Transmit Validate not Transmit...
Page 55: ...55 Aztec Append Enable Aztec Append default Disable Aztec Append...
Page 66: ...66 6 3 Appendix 3 Digit Barcodes 0 1 2 3 4 5 6 7 8 9 A B C D E F...