IANA ups/401 was registered by Charles Bennett for "Uninterruptibe Power Supply" but I have been unable to find any details of any protocol that might have been developed. The IANA ups/401 contact address corresponds to Charles Bennett's employment by Ohio University as an IT technologist for the Chemistry and Biochemistry Departments. I believe Charles Bennet died in March 2015, his obituary may be found at https://www.jagersfuneralhome.com/obituary/3000455 and matches his IANA-registered e-mail addresses. Does any reader of this list have any recollection of the ups/401 protocols or any products that used them? Any pointer or reference would be very welcome. Roger