The 111mt080kb file is a 111 KB PDF placed under schematics, its name following a power-component part-number pattern rather than a board numbering scheme. No device, brand, board number or revision is given. A closely related 110mt080kb document exists, so the leading digits probably distinguish variants of one family. Use the sheet to confirm terminal layout, ratings and package outline when testing or sourcing the part. It opens in any PDF reader; confirm the exact code printed on the component first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.