20-Tube Coaxial Cable
From the records of the Lyons, NE main station, courtesy of Terry Michaels
Thanks to a retired "Long Liner" for providing this information
- COC is "Cableman's Order Circuit", which provided voice communications for cable maintenance between repeaters/main stations/terminals;
the COC pair was also accessed in test/splice pits during trouble locations and repairs.
It appeared in primary testboard jacks in main and terminal offices and sounded a "call in" alarm when shorted anywhere in the field.
It also appeared in risers along the route.
- LOC is "L Order Circuit", also for voice communications, appearing in repeaters, main and terminal stations,
and activated by a short on the pair.
Created on June 17, 2003 at 22:05 by Albert LaFrance