Appendix C: Configuration or Firmware Upgrade with a USB Drive668Configuration FilesThere are three types of configuration files. fwupdate.cfg:This file MUST be always present for performing configuration orfirmware upgrade tasks. Seefwupdate.cfg (on page 668). config.txt:This file is used for configuring device settings. Seeconfig.txt (onpage 672). devices.csv:This file is required only when there are device-specific settings toconfigure for multiple PX3TS devices. Seedevices.csv (on page 674).Raritan provides a Mass Deployment Utility, which helps you to quicklygenerate all configuration files for your PX3TS. SeeCreatingConfiguration Files via Mass Deployment Utility (on page 675).