Microscan MS-3000 User Manual page 114

Appendices
Full Duplex Mode
In full duplex mode, all monitor data and bar code data is sent directly to the
host. Bar code data is not displayed on the monitor screen.
Data initiated from the Monitor
• Monitor data is passed directly through
to the host whenever it is received by
the MS-3000, unless the decoder is in
a polled mode, in which case the data
will be ignored.
• Monitor data is not echoed.
• Monitor data to the host will not have a
preamble or a postamble.
• A <D> command is the only command
accepted by the decoder from the
monitor. All other commands will pass
through to the host.
Data initiated from the Decoder
• Scan data is not sent to the monitor.
Data initiated from the Host
• In polled mode, data echoed from the
host to the monitor must be in the for-
mat <B____> (for example, to send
the word "LUNCH" to the terminal, it
must be sent in the format
<BLUNCH>).
• In unpolled mode, all host data is ech-
oed to the monitor.
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MS-3000 Single Head Decoder User's Manual
Monitor
Host
MS-3000 Decoder
Monitor
Host
MS-3000 Decoder
Monitor
Host
MS-3000 Decoder