Motorola DS9808 - Symbol - Wired Handheld Barcode Scanner, Product Reference Manual

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RS-232 Interface 7 - 11
Hardware Handshaking (continued)
•
None : Scan this bar code to disable hardware handshaking.
•
Standard RTS/CTS : Scan this bar code to select Standard RTS/CTS Hardware Handshaking.
•
RTS/CTS Option 1 : If you select RTS/CTS Option 1, the digital scanner asserts RTS before transmitting and
ignores the state of CTS. The scanner de-asserts RTS when the transmission completes.
•
RTS/CTS Option 2 : If you select Option 2, RTS is always high or low (user-programmed logic level).
However, the digital scanner waits for CTS to be asserted before transmitting data. If CTS is not asserted
within Host Serial Response Time-out (default), the scanner issues an error indication and discards the data.
•
RTS/CTS Option 3 : If you select Option 3, the digital scanner asserts RTS prior to any data transmission,
regardless of the state of CTS. The scanner waits up to Host Serial Response Time-out (default) for CTS to
be asserted. If CTS is not asserted during this time, the scanner issues an error indication and discards the
data. The digital scanner de-asserts RTS when transmission is complete.
*
None
Standard RTS/CTS
RTS/CTS Option 1
RTS/CTS Option 2
RTS/CTS Option 3