david.barker@LIGO.ORG - posted 16:35, Friday 31 July 2015 - last comment - 18:23, Friday 31 July 2015(20113)
channels which differ between the two sites' science frames
attached is a file listing the channel differences between the L1 and H1 science frames.
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Comments related to this report
It looks like almost all of the non-PEM differences can be explained by differences in hardware, control scheme/choices, and non-deprecated channels due to little-to-no maintenance. LHO has a beam rotation sensor, and LLO does not. < H1:ISI-GND_BRS_ETMX_REF_OUT_DQ 256 < H1:ISI-GND_BRS_ETMX_RY_OUT_DQ 256 LHO uses a different tidal scheme (T1400733). < H1:LSC-Y_ARM_OUT_DQ 256 < H1:LSC-Y_TIDAL_OUT_DQ 256 LHO has not yet updated the CAL-CS calibration for IMC-F, so it remains in OAF. < H1:OAF-CAL_IMC_F_DQ 16384 LLO has PI damping and LLO does not? > L1:LSC-X_EXTRA_AI_1_OUT_DQ 2048 > L1:LSC-X_EXTRA_AI_2_OUT_DQ 2048 > L1:LSC-X_EXTRA_AI_3_OUT_DQ 2048 > L1:LSC-Y_EXTRA_AI_1_OUT_DQ 2048 > L1:LSC-Y_EXTRA_AI_2_OUT_DQ 2048 > L1:LSC-Y_EXTRA_AI_3_OUT_DQ 2048 Regardless of what was decided via the formal process, Daniel hasn't visited LLO recently and force-reduced the ODC data rate. < H1:ODC-X_CHANNEL_OUT_DQ 16384 < H1:ODC-Y_CHANNEL_OUT_DQ 16384 < H1:PSL-ODC_CHANNEL_OUT_DQ 16384 --- > L1:ODC-X_CHANNEL_OUT_DQ 32768 > L1:ODC-Y_CHANNEL_OUT_DQ 32768 > L1:PSL-ODC_CHANNEL_OUT_DQ 32768 LLO has not completely deprecated OAF for all of its LSC DOF calibrations. > L1:OAF-CAL_CARM_X_DQ 16384 > L1:OAF-CAL_DARM_DQ 16384 > L1:OAF-CAL_MICH_DQ 16384 > L1:OAF-CAL_PRCL_DQ 16384 > L1:OAF-CAL_SRCL_DQ 16384 > L1:OAF-CAL_XARM_DQ 16384 > L1:OAF-CAL_YARM_DQ 16384 LLO uses a different ISS second loop scheme (or hasn't deprecated one of its attempts that is no longer used)? > L1:PSL-ISS_SECONDLOOP_PD_14_SUM_OUT_DQ 16384 > L1:PSL-ISS_SECONDLOOP_PD_58_SUM_OUT_DQ 16384 LLO has a HV ESD driver on its ITMX, LHO does not. > L1:SUS-ITMX_L3_ESDAMON_DC_DQ 256 > L1:SUS-ITMX_L3_ESDAMON_LL_DQ 256 > L1:SUS-ITMX_L3_ESDAMON_LR_DQ 256 > L1:SUS-ITMX_L3_ESDAMON_UL_DQ 256 > L1:SUS-ITMX_L3_ESDAMON_UR_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_CAS_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_HVN_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_HVP_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_LVN_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_LVP_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_MCU_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM1_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM2_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM3_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM4_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM5_DQ 256 > L1:SUS-ITMX_L3_ESDDMON_TM6_DQ 256