USP End-of-Line Supervision Device, Model R64

[mm <NOPSAMmm2005@xxxxxxxxxxx>]

I inherited a couple USP End-of-Line Supervision Devices, Model R64.
I'm not in the business, but I was hoping someone could explain to me
what this thing does.

This was the description on some website, maybe www.spy something.com.


Model R64
End of Line Relay

Adaptable to any standard 4 or 6 wire system.  Provides 12-24 VDC
E.O.L. Power Supervision
CSFM Approved
Size: 2-3/8" X 2-1/4" X 1"


If you are inclined to email me
for some reason, remove NOPSAM  :-)