Our latest run of T1XG boards omitted a slot which is needed for installation of the front panel hardware. See photo: ​http://ohm.bu.edu/~hazen/AMC13/2020Fab/T1XG_PCB_NO_SLOT.jpg

We ordered the boards from these Gerbers:

• T1: ​http://gauss.bu.edu/svn/amc13-hardware/AMC13XG/Gerbers/T1XG/T1XG_0.3.zip
• T2: ​http://gauss.bu.edu/svn/amc13-hardware/AMC13XG/Gerbers/T2New2FLASH/T2New2019.zip
• T3: ​http://ohm.bu.edu/~hazen/CMS/AMC13/Rev1/T3/BU_AMC13_T3_Rev2.zip
  • ​http://ohm.bu.edu/~hazen/CMS/AMC13/Rev1/T3/T3.xls

While Shouxiang claims these are the latest:

• T1: ​http://physics.bu.edu/~wusx/download/AMC13XG/T1XG_Dec6.zip

The files are definitely different, and the "0.3" zip file does not contain key file "T1XG-RoundHoles.TXT" and "T1XG-SlotHoles.TXT" but only "T1XG.DRL" which is a binary file.