Making a Technical Support Query .................................................... 475
Who To Contact ............................................................................... 475
Have Your Product Information Ready ............................................ 475
Making a support query via the Perle web page .............................. 475
Repair Procedure.................................................................................. 476
Feedback on this Manual..................................................................... 476
Appendix J Data Logging ...............................................477
Introduction .............................................................................. 477
Trueport Profile ........................................................................ 477
TCP Socket Profile................................................................... 477
Appendix K Modbus Remapping ...................................478
Configuring the Modbus UID Translation Feature ................ 478
Appendix L Symmetric Key File.....................................480
Symmetric Key File.................................................................. 480
Appendix M Troubleshooting the USB Modem ............481
Modem not connecting to the network. ................................. 481
USB Modem Support and Custom Options.......................... 484
Downloading Custom USB Modem Configuration Files................... 484
Glossary ...........................................................................486
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