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Reports until 13:02, Wednesday 25 March 2026
H1 SUS (AOS, SPI)
jeffrey.kissel@LIGO.ORG - posted 13:02, Wednesday 25 March 2026 - last comment - 13:33, Wednesday 25 March 2026(89643)
PR3 Oplev Whitening Chassis Moved up in SUS-R2
J. Kissel, M. Pirello

While in SUS-R2 and thinking SPI, and looking at the proposed rack layout from G2401479, and accounting for all the SUS (BBSS, LO1, LO2) that's incoming for O5 -- I found that SPI can have a bit more space if we just move the SUS-PR3 optical lever whitening chassis up 5 U-heights from "32" to "27." I put the u-height in quotes because this is an old style rack with the u-heights labeled from top down, rather than the bottom up per industry convention. I would have and could have gone higher, but the 27 slot already had mounting clips in it, so I went there. We can go as high as "25" if need be in the future.

Pics of before vs. after are attached.
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oli.patane@LIGO.ORG - 13:33, Wednesday 25 March 2026 (89644)

Adding more photos showing the whole rack so I can accurately update the cable wiring diagram

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