KEYENCE BL-N90 Series - Manual (Page 51)

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3-4 Settings for Each Communication Interface
Keyboard/USB Connection Interface (BL-N9V/N9UB)
The keyboard specifications can be selected ( page 4-23).
z
Localized settings
BL-N9V/N9UB are compatible with the following keyboard languages.
• JAPANESE . . . . . . . . . . . . . . . . . . Japanese specifications
• USA . . . . . . . . . . . . . . . . . . . . . . . . American specifications
RS-232C Communication Interface (BL-N9R)
The RS-232C communication protocol can be set to no protocol, RTS/CTS, or ACK/NAK
(
page 4-24).
z
No protocol
There is no procedure used for communication Once the barcode is read, the data is sent
in sequence.
z
RTS/CTS
The CTS signal for RS-232C (RTS on the host side) can wait to send data by using the
following methods.
• CTS signal off (Low) : Waits to send data.
• CTS signal on (High) : Sends data.
Barcodes cannot be read while waiting to send data.
Note
RTS signal for RS-232C
• With "No protocol," the RTS signal is normally set to "Always on (High)".
• With "RTS/CTS," the RTS signal becomes "On only when sending data (High)."