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TROUBLESHOOTING
Symptom Possible Cause(s) Solution
RS232 Only
The host is receiving
data but the data
does not look correct.
The scanner and host may not be
configured for the same interface.
Check that the scanner and the host are configured for the
same interface.
Characters are being
dropped.
The intercharacter delay needs to be
added to the transmitted output.
Add some intercharacter delay to the transmitted output by
using the MetroSelect Configuration Guide (MLPN 00-
02407x).
Aux Port Operation With Any Interface
The secondary
scanner is not
functioning.
Refer to the user’s guide provided with the secondary
scanner.
The secondary
scanner powers up
but data is not
relayed to the host.
The secondary scanner cable may
not be connected to the proper port
on the StratosS.
Ensure that the secondary scanner is connected to the
MS2220 com port marked “Aux” port.
The auxiliary com port may not be
operating properly.
* The StratosS must be configured to enable the auxiliary
port.
The auxiliary input port’s data format must match the main
output format of the secondary scanner.
* Refer to the MS2xxx Stratos Series Configuration Addendum (MLPN 00-02034x) under Scanner Configuration Bar
Codes: Auxiliary Port, Quick Start for a Secondary Metrologic Scanner.
RS232 DEMONSTRATION PROGRAM
If an RS232 scanner is not communicating with your IBM compatible PC, key in the following BASIC program to test that
the communication port and scanner are working. This program is for demonstration purposes only. It is only intended to
prove that cabling is correct, the com port is working, and the scanner is working. If the bar code data displays on the
screen while using this program, it only demonstrates that the hardware interface and scanner are working. At this point,
investigate whether the application software and the scanner configuration match. If the application does not support
RS232 scanners, a software wedge program that will take RS232 data and place it into a keyboard buffer may be needed.
This program tells the PC to ignore RTS-CTS, Data Set Ready (DSR) and Data Carrier Detect (DCD) signals. If the
demonstration program works and yours still does not, jumper RTS to CTS and Data Terminal Reading (DTR) to DCD and
DSR on the back of your PC.
10 CLS
20 ON ERROR GOTO 100
30 OPEN “COM1:9600,S,7,1,CS0,DS0,CD0,LF” AS #1
35 PRINT “SCAN A FEW BAR CODES”
40 LINE INPUT #1, BARCODE$
50 PRINT BARCODE$
60 K$ = INKEY$: IF K$ = CHR$(27) THEN GOTO 32766
70 GOTO 40
100 PRINT “ERROR NO.”; ERR; “ PRESS ANY KEY TO TERMINATE.”
110 K$ = INKEY$: IF K$ = “” THEN GOTO 110
32766 CLOSE: SYSTEM
32767 END
42
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