Lot of three assorted industrial telecommunications modules from Pulsecom. These are models "DSU-DP3" - "B105515-1", "4TDM-1L2" - "D105056-1" and "4E & MER-1L2" - "D105027-1".
These are from the estate of an industrial telecommunications engineer and ham radio enthusiast. We don't know much about them and we have not tested them.
