This is a disk image from a floppy disk comes with a TDS7104 with Radisys SF810 motherboard and it says

BIOS Update and LAN Enable
Version 1.03.01
CSA7000, TDS7000, and
TDS6000 Series
063-3645-00

on the disk. And there is an instruction about how to install it in the disk.
Please restore the image into a floppy disk and boot from it on the scope.