Справочник Пользователя для Wasp Bar Code WLS 8400 ER
RS-232 Interface
6-17
Hardware Handshaking (continued)
RTS/CTS Option 2
When Option 2 is selected, RTS is always high or low (user-programmed logic level).
However, the 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.
However, the 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 2
RTS/CTS Option 3
When Option 3 is selected, the 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 scanner de-asserts RTS when transmission is
complete.
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 scanner de-asserts RTS when transmission is
complete.
RTS/CTS Option 3