J. Kissel

I attach pictures of the switchable configuration boards of all optical levers in the corner station. My fingers are supposedly indicative of the rack / chassis into which they're plugged, but I add a legend here anyways with the real rack numbers, and I include the exact switchable filter status. Note, I only report one of the channels' switch status, because (thank god) in every instance, all four channels are configured in the same way.

Rack          Board      Optical Lever    Config Board  |------------------ Switch Status ----------------|    Centered?  Raw Segment Counts
              Number                       Installed?    Board    Switch                                        
                                                        CH Name   CH Name    Function    HI   LO    ON/OFF        
SUS H1-R1       1        HAM2 Table?          No          N/A                                                  (HAM2) No     1:-339 3:-2243
  (Pg 1)                 HAM3 Table?                                                                                         4:-399 2:-3548 

                2        HAM2 Table?          No          N/A                                                 (HAM3) Maybe   1:-1260 3:-1167
                         HAM3 Table?                                                                                         4:-1921 4:-1594
                                                                                                                            
SUS H1-R2       1          none?              No          N/A                                                     N/A
  (Pg 2)
                2           PR3               Yes          B0       1       +24 [dB]     X            OFF      PR3 Yes-ish   1:-5600  3:-7400
                         (pgs 3-5)                         B1       2       +12 [dB]          X       ON                     4:-17800 2:-17500
                                                           B2       3       +6  [dB]          X       ON                
                                                           B3       4       +3  [dB]     X            OFF
                                                           B4       5       (1:10)            X       ON
                                                           B5       6       (1:10)       X            OFF
                                                           B6       7       (1:10)       X            OFF
                                                           B7       8       Latch        X            OFF
                                                              Total PR3 TF = (1:10), G = 18 [dB]

SUS H1-R4       1        HAM4 Table?          No          N/A                                                  (HAM4) No     ADC Noise
  (pgs 6-7)              HAM5 Table?

                2        HAM4 Table?          No          N/A                                                  (HAM5) No     ADC Noise
                         HAM5 Table?

SUS H1-R3       1           none?             No          N/A                                                  N/A
  (pg 8)                               
                2            SR3              Yes          B0       1       +24 [dB]     X            OFF      SR3 Yes-ish   1:-9100 2:-9200
                          (pgs 9-10)                       B1       2       +12 [dB]     X            OFF                    4:-7040 3:-9200
                                                           B2       3       +6  [dB]     X            OFF                   
                                                           B3       4       +3  [dB]     X            OFF
                                                           B4       5       (1:10)            X       ON
                                                           B5       6       (1:10)       X            OFF
                                                           B6       7       (1:10)       X            OFF
                                                           B7       8       Latch        X            OFF
                                                              Total SR3 TF = (1:10), G = 0 [dB]
                
SUS H1-R6       1            BS               Yes          B0       1       +24 [dB]     X            OFF      BS  Yes-ish   1:-6800 2:-6300
  (pgs 11)                 (pg 12)                         B1       2       +12 [dB]          X       ON                     4:-7250 3:-7350
                                                           B2       3       +6  [dB]     X            OFF                   
                                                           B3       4       +3  [dB]          X       ON   
                                                           B4       5       (1:10)            X       ON
                                                           B5       6       (1:10)       X            OFF
                                                           B6       7       (1:10)       X            OFF
                                                           B7       8       Latch        X            OFF
                                                              Total BS TF = (1:10), G = +15 [dB]

                2           ITMY              Yes          B0       1       +24 [dB]     X            OFF      ITMY Yes-ish  1:-2470 2:-2380
  (pgs 15)               (pg 16-20)       (NOT AS SHOWN)   B1       2       +12 [dB]     X            OFF                    4:-2250 3:-2900
                                                           B2       3       +6  [dB]     X            OFF                   
                                                           B3       4       +3  [dB]     X            OFF   
                                                           B4       5       (1:10)       X            OFF
                                                           B5       6       (1:10)       X            OFF
                                                           B6       7       (1:10)       X            OFF
                                                           B7       8       Latch        X            OFF
                                                              Total ITMY TF = (flat), G = 0 [dB]

SUS H1-R5       1           ITMX              Yes          B0       1       +24 [dB]     X            OFF      ITMX Yes-ish  1:-1000 2:-700
  (pgs 13)                 (pg 14)                         B1       2       +12 [dB]     X            OFF                    4:-1000 3:-700
                                                           B2       3       +6  [dB]     X            OFF                   
                                                           B3       4       +3  [dB]     X            OFF   
                                                           B4       5       (1:10)            X       OFF  
                                                           B5       6       (1:10)            X       OFF
                                                           B6       7       (1:10)       X            OFF
                                                           B7       8       Latch        X            OFF
                                                              Total ITMX TF = (1,1:10,10), G = 0 [dB]

Note that I've left ITMY with all of its switches OFF because we want to assess whether the internal gain of the QPD head (see D1100290) is set to the "high" (100 [kOhm] transimpedance) or "low" (10 [kOhm] transimpedance) -- and I got booted out of the LVEA for locking the IFO. Seems like 2000 counts is a little to low, we really want something like 10000 [cts] per quadrant. We will adjust tomorrow.

I've also confirmed that all over-all transfer functions for each optic has digitally compensated for correctly.