J. Kissel, F. Clara
WP:13296

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Executive Summary: 
Following up after last week's completion of SUS-R2 (LHO:90500), all HAM3 in-air electronics cables and optical fiber patch cords to/from SUS-R2 or TCSY to the chamber have been "pulled," i.e. routed fully to each end of their connections. This leaves *only* the HAM2 ISIJ QPD connection to its transimpedance amplifier in SUS-R1 as the last cable to be landed in the ex-vacuo part of the SPI electronics wiring and optical fiber network.
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Details
Here's the status summary of each of the HAM3 cables and patch cords Fil and I pulled today.

SPI Picomotor Cable SPI_HAM3_013
Description :: This cable connects drive CHs 5, 6, 7, and 8 of the TCSY / CO2Y Picomotor Controller "G" (driven by Corner 2 ECAT Chassis) to the HAM3 D6 12x D25 feedthru into port F11. 

Status :: Now connected at controller and at flange. Strain relief at flange is not yet final.

SPI PD Concentrator Cable SPI_HAM3_015
Description :: This cable bus routes the SPI HAM3 ISIK Transceiver PD and QPD signals (IFO_REF_A, IFO_REF_B, IFO_MEAS_A, FBR_PWRIN_REF, FBR_PWRIN_MEAS, IFO_MEAS_B, QPDB_Q1, QPDB_Q2, QPDB_Q3, QPDB_Q4) from HAM3 D6 port F10 to the "PD Input" port of the S2500712 D1002481-v4 "Variant 2" of the SPI transimpedance amplifier (TIA) chassis in SUS-R2 U4. 

Status :: Now connected at TIA and at flange. Strain relief at flange is not yet final.

SPI_PSL_001 Optical Fiber Patch Cord
Description :: This optical fiber patch cord connects the fiber collimator SPI-FC1 fiber output of the SPI Pick-off Path in the PSL to the "PSL IN" fiber input port on the front-panel of S2500058 D2400156 SPI Laser Prep Chassis in SUS-R2 U6+U7.

Status :: NOT ENERGIZED (thanks to newly installed Uniblitz Shutter; LHO:90490). BUT -- shielded with standard orange protective tubing and now brought down from the cable tray (2nd story of "high" tray running above the input arm) and landed at the Laser Prep Chassis. Neither strain relief nor routing through rack is final.

SPI_REF_001 and SPI_MEAS_001 Optical Fiber Patch Cords
Description :: This pair of optical fiber patch cords connect the modulated at 80.0 MHz [MEAS] and (80.0 MHz - 4096 Hz) = 79.995904 MHz = "80- MHz" [REF] light from the SUS-R2 U6+7 Laser Prep Chassis fiber output ports to the HAM3 D4-1J1 [S3228003 MEAS] and D4-1J2 [S3228002 REF] fiber feedthrus (D2500175).

Status :: NOT ENERGIZED (no laser input from PSL, nor are the AOMs being driven with any RF). BUT -- shielded with standard orange protective tubing and routed in the "low" cable tray system that runs from SUS-R2 to the feedthrus underneath the -X side of the chamber. They're connected at the SUS-R2 U6+7 Laser Prep Chassis fiber output ports, but they're dangling at the feedthru end because we haven't finished upgrading the feedthrus (see LHO:90511).

References
The SPI Pathfinder has been integrated into lots of different subsystems, so there's a ton of disparate systems drawings that are need to follow its signals from "soup to nuts."

Optical Fiber
[1] D1300348 As-built PSL/IO Table Layout
[2] D2400110 Optical Fiber Routing Diagram

RF electronics and PD Electronics
[3] D2400111 SPI Wiring Diagram
[4] D1002874 HAM3 Flange Layout
[5] G2401479 Systems-level Slides for HAM3D4_12xD25 and HAM3D6_FiberFeedthru plans
[6] SUS-R2 Rack Layout w.r.t. SPI
[7] E1100591 (Heliax) RF Signal Distribution System

Picomotor Drive
[8] E1100892 TCS Wiring Diagram
[9] D1900511 ISC Wiring Diagram
[10] D1100683 EtherCAT (Beckhoff) System Diagram
[11] E1200072 Picomotor Channel Inventory [[Very-out-of-date -- see unresolved IIET:32610]]