Advanced Instruments 3300, Руководство пользователя

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Barcode port (Figure 2)
A D-type, 15-pin barcode port is provided in the back of the 3300 for
connecting and providing power to such a device. For proper operation,
the barcode port requires a 1200 bps, RS232-level signal providing
asynchronous serial data containing 1 start bit, 8 data bits, 1 stop bit and
no parity.
A suitable RS232 barcode scanner is available from Advanced
Instruments, Inc. To interface with the 3300, the barcode scanner must
be programmed as follows, referring to the scanner users guide.
10 msec Intercharacter Delay
Disable Line Feed Suffix
No Parity
1200 BAUD Rate
8 Data Bits
Supervisor/operator keyswitch (Figure 2)
The supervisor/operator keyswitch allows certain instrument functions to
be locked. The Supervisor keyswitch position is required for re-calibration
and for access to the following diagnostic menu items: Set Probe Bin #s,
Set Serial Rate, Serial Comm Set and Select Language.
If a restricted function is attempted while Supervisor/Operator keyswitch
is in the operator position, a
“ Supervisor Key Needed ” message is dis-
played and may be cleared by pressing both function buttons simultane-
ously before selecting any other function.
To utilize the supervisor/operator keyswitch you must use the key sup-
plied with your instrument.
+5V DC 1 to reader
receive data 10 from reader
gnd/earth 9 common
Signal Pin Direction
Table 2: Barcode Port Connections
9
Instrument Operation