User manuals are sorted by product serial number and model codes. The first 4 digits of the serial number represent the manufacture date (YYMM) eg, 2203-XXXX = March 2022 build date.
Models: TUF-520-30-1-SD, TUF-950-30-2-SD
October 2023 - current (2310 - current)
Models: TF-160-SP-1-SD, TF-260-SP-1-SD, TRF-DUAL-SP
October 2023 - current (2310 - current)