Reply to "LIRR has been around longer than...."

NYandWOGR Forum Member

Hi Folks, I need help with the following photo: MU connections ID view
#1: The 27 point trainline jumper was used to control the locomotive from the cab control / power-pack unit.

#2 and #3: The other two jumpers were for the 650 VDC Head End Power system, a system design unique to LIRR. Does anyone know the size of the four individual conductors in LIRR’s positive power trainline? For comparison, Amtrak uses twelve 4/0 (four ought) conductors in their 480 VAC HEP trainline.

1. You can see there is a fourth jumper located between #2 and #3. What was the function of that fourth jumper?
2. Anyone with color shots of this type material?
3. A a photo that shows these trainline receptacles on the end of a push-pull car

Thank you. :-)

7/6/199:50 PM

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