19
RS-232
I
NTERFACE
H
ANDSHAKING
Review your system documentation to identify handshaking requirements,
and use these labels to change the settings if required. The following brief
descriptions explain each selection.
H
ARDWARE
C
ONTROL
CTS/RTS Flow Control
— is hardware handshaking. The
scanner activates the RTS (Ready to Send) line when it is ready to
send data to the host. The scanner waits for an active Clear to
Send (CTS) signal from the host before transmitting data. If
hardware control is disabled, CTS/RTS communication will not
take place. If the host deactivates the CTS line during data trans-
mission, the host will receive additional characters for no more
than 2msec
1
.
Label Transmission
Label Transmission
Xmission
CTS
Data
CTS/RTS Flow Control
Active
Disabled
Inactive
CTS Scan Control
— is also a hardware control. When scan
control is enabled, label transmission is disabled until CTS is
asserted and de-asserted.
Label 1
Label 2
Label 1
CTS
Data
CTS Scan Control
Assert
Will not scan again
until toggle
De-assert
Disabled until
1
Varies slightly depending upon baud rate selected.
Summary of Contents for Bar Code Laser
Page 6: ...NOTES iv Wasp Laser Scanner Programming Guide...
Page 43: ...37 L ABEL T RANSMIT F ORMAT C ONFIG 5 6 7 8 9 A B C D E F ONE CHARACTER ONLY END...
Page 51: ...45 L ABEL T RANSMIT F ORMAT C ONFIG A B C D E F ONE CHARACTER ONLY END...
Page 67: ...61 S YMBOLOGY S ELECTION 5 6 7 8 9 END C ODE 39 M INIMUM L ABEL L ENGTH...
Page 77: ...71 S YMBOLOGY S ELECTION S TANDARD 2 OF 5 F IXED AND M INIMUM L ABEL L ENGTHS 7 8 9 END...
Page 96: ...90 Wasp Laser Scanner Programming Guide A PPENDIX B T EST B ARCODES NOTES...
