B. Weaver, J. Kissel
WP 12109

Betsy, myself, and several others are looking to propose redlines to the WHAM3 flange cable layout (D1002874) in prep for O5 (see T2400150 for DCN and discussion there-of). 

However, in doing so, we discovered that the flange layout may have double-counted the shared cable for the MC2/PR2 M1 (top) RTSD / T1T2 OSEMs. Other drawings (e.g. the Cable Routing D1101463 and the wiring diagrams D1000599) indicate "yes, there's an extra 'SUS-TRIPLE' entry somewhere between the D6 and D3 allocation," but we wanted to be sure.

As such, Betsy went out to HAM3 today and confirmed that YES the MC2/PR2 M1 (top) RTSD / T1T2 cable, labeled "SUS_HAM3_002" in the wiring diagram or "SUS-HAM3-2" in real life, does come out of D3-1C1 and *not* out of any D6 port, and thus we validate that D6's list of 4x DB25s to support the 'SUS-TRIPLE' (i.e. MC2) in D1002874 is incorrect.

Pictures attached show the D3 flange, and highlight the SUS-HAM3-2 cable at the flange going to D3-1C1, and then the other end of that cable, clearly going into the MC2-TOP/PR2-TOP satamp box in the SUS-R2 field rack (S1301887).