Sharp JW-20CM User Manual page 93

② Check cable/connector
As errors on the junction from the main cable to the drop cable or the contact failure on the
connecting point of each station or errors of the master module are assumed, check with the
following procedure.
Set the error operation mode of a
JW-20CM master module to "2."
Monitor "individual communication flag"
in support tool.
FT lamp turns ON
NO
Error only 1 station
NO
At plural station error
See next page
8 55
·
YES
Exchange JW-20CM
Check and exchange the "bus
cable" and "branch cable" to
YES
the station with the error or the
"station error module where
the error occurred."
8