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Line 12:
Line 12: + + + +
→Putting Fibers in Dark Box
SUM1 to SUM3 go to board 1, the bottom preamp board. SUM4 to SUM6 go to board 2, the top preamp board.
SUM1 to SUM3 go to board 1, the bottom preamp board. SUM4 to SUM6 go to board 2, the top preamp board.
The curtain should not be closed until the fibers are all aligned in the chimneys and the preamp boards are in place. Closing the curtain before putting the fibers through the chimneys means they bend too much on the way in as they are put through the positioning wire above the preamp boards.
Instead of closing the curtain, use the positioning wire that is somewhere along the ramp that slopes down toward the mirror to keep the fibers from falling over.
==Test Results==
==Test Results==