Troubleshooting guide (continued) – Metrologic Instruments MS7120 Series User Manual
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Troubleshooting Guide (continued)
RS-232 only
SYMPTOMS
POSSIBLE CAUSE(S)
SOLUTION
Power-up OK
Com port at the host is not
Check to make sure that the baud rate
and scans OK
working or configured
and parity of the scanner and the
but does not
properly
communication port match and the
communicate
program is looking for “RS-232" data
properly to the
host
Power-up OK
Cable not connected to the
Check to make sure that the baud rate
and scans OK
proper com port
and parity of the scanner and the
but does not
communication port match and the
communicate
program is looking for “RS-232" data
properly to the
host
Power-up OK
Com port not operating
Check to make sure that the baud rate
and scans OK
properly
and parity of the scanner and the
but does not
communication port match and the
communicate
program is looking for “RS-232" data
properly to the
host
The host is
The scanner and host may
Check that the scanner and the host
receiving data
not be configured for the
are configured for the same interface
but the data does
same interface font
font
not look correct
Characters are
Intercharacter delay needs
Add some intercharacter delay to the
being dropped
to be added to the
transmitted output by using the
transmitted output
MetroSelect Programming Guide
MLPN 2407