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  • LIRR Push-Pull Train Concept Overview 1971-72 - Power Packs, P72's , and more

  • Discussion of the past and present operations of the Long Island Rail Road.
Discussion of the past and present operations of the Long Island Rail Road.

Moderator: Liquidcamphor

 #1621620  by jhdeasy
 
nyandw wrote: Fri May 05, 2023 5:12 pm Oops, found one! Here we go:
#607 nose at Oyster Bay 1973 Photo/Archive: Richard Glueck

MIght folks indicate the function of the trainline receptacles, as I have numbered, thanks!
Image
I believe the receptacles are setup as follows:

1: Communications trainline (27 pin)
2: HEP trainline (single point negative)
3: HEP trainline (four point positive)
4: HEP trainline (four point positive)
5: HEP trainline (single point negative)
6: Communications trainline (27 pin)
7: Locomotive MU control (27 pin)

If you actually worked with this equipment, please verify or correct. I might have the functions of 1/3 and 4/6 incorrectly swapped.