Access RAD ASMi-54 Installation And Operation Manual page 116

Appendix B Boot Sequence and Downloading Software
B-4 Transferring the Software and Configuration Files
ASMi-54 automatically erases the backup partition (it takes about
25 seconds). Once the downloading is completed, ASMi-54 saves the new
release as an active partition; the former active partition becomes a backup.
Installation and Operation Manual
ASMi-54 Ver. 1.0