WIRE LESS BAR CODE SCANNER
21
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 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
ACK/NAK:
When this option is selected, after transmitting data, the scanner expects either an ACK or NAK
response from the host. When a NAK is received, the scanner transmits the same data again and waits for either an
ACK or NAK. After three unsuccessful attempts to send data when NAKs are received, the scanner issues an error
indication and discards the data.
ACK/NCK
ENQ:
When this option is selected, the scanner waits for an ENQ character from the host before transmitting data.
If an ENQ is not received within the Host Serial Response Time-out, the scanner issues an error indication and
discards the data. The host must transmit an ENQ character at least every Host Serial Response Time-out to prevent
transmission errors.
ENQ
ACK/NAK with ENQ: This
combines the two previous options. For re-transmissions of data, due to a NAK from
the host, an additional ENQ is not required.
ACK/NCK with ENQ
XON/XOFF:
An XOFF character turns the scanner transmission off until the scanner receives an XON character.
There are two situations for XON/XOFF:
• XOFF is received before the scanner has data to send. When the scanner has data to send, it waits up to Host
Serial Response Time-out for an XON character before transmission. If the XON is not received within this time,
the scanner issues an error indication and discards the data.
• XOFF is received during a transmission. Data transmission then stops after sending the current byte. When the
scanner receives an XON character, it sends the rest of the data message. The scanner waits up to 30 seconds for
the XON
XON/XOFF
RTS Line State
Host: Low RTS
(
Default
)
Host: High RTS &RH
Summary of Contents for SCWBS-1
Page 1: ...Wire Less Bar Code Scanner User Manual Version TS_UM_EN_V1 0 2 Jun 2011 ...
Page 7: ...WIRE LESS BAR CODE SCANNER 5 RS232 cable ...
Page 21: ...WIRE LESS BAR CODE SCANNER 19 Disable ...
Page 28: ...WIRE LESS BAR CODE SCANNER 26 Decode UPC EAN Only With Supplementals Enable Disable ...
Page 32: ...WIRE LESS BAR CODE SCANNER 30 ...
Page 67: ...WIRE LESS BAR CODE SCANNER 65 Scan Insert String 2 1 Digit 0 6 0 ...
Page 73: ...WIRE LESS BAR CODE SCANNER 71 Test Bar Code ...
Page 75: ...WIRE LESS BAR CODE SCANNER 73 Appendix 4 Decode zone High Density series Long Range series ...