40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Wed Feb 24 22:13:47 2021, Jon, Update, CDS, Planning document for front-end testing 
    Reply  Fri Mar 5 17:48:25 2021, Jon, Update, CDS, Front-end testing image_67203585.JPGimage_67216641.JPGimage_17185537.JPG
       Reply  Tue Mar 9 16:52:47 2021, Jon, Update, CDS, Front-end testing image_72192707.JPG
          Reply  Tue Mar 16 16:27:22 2021, Jon, Update, CDS, Front-end testing 
             Reply  Tue Mar 16 19:04:20 2021, gautam, Update, CDS, Front-end testing 
             Reply  Fri Mar 19 18:14:56 2021, Jon, Update, CDS, Front-end testing image_72192707_(1).JPGimage_50412545.JPG
                Reply  Wed Mar 24 19:02:21 2021, Jon, Update, CDS, Front-end testing 
                   Reply  Mon Mar 29 17:55:50 2021, Jon, Update, CDS, Front-end testing 
                      Reply  Tue Mar 30 18:21:34 2021, Jon, Update, CDS, Front-end testing 
                      Reply  Tue Apr 6 07:19:11 2021, Jon, Update, CDS, New SimPlant cymac 
                         Reply  Tue Apr 6 11:13:01 2021, Jon, Update, CDS, FE testing 
                            Reply  Sat Apr 10 08:51:32 2021, Jon, Update, CDS, I/O Chassis Assembly 
                               Reply  Thu Apr 29 10:51:35 2021, Jon, Update, CDS, I/O Chassis Assembly 
                                  Reply  Tue May 4 07:38:36 2021, Jon, Update, CDS, I/O Chassis Assembly Screen_Shot_2021-05-03_at_4.16.06_PM.png
                                     Reply  Tue May 11 16:29:55 2021, Jon, Update, CDS, I/O Chassis Assembly Screen_Shot_2021-05-11_at_3.03.42_PM.png
                                        Reply  Tue May 11 17:43:09 2021, Koji, Update, CDS, I/O Chassis Assembly 
                                           Reply  Fri May 28 11:16:21 2021, Jon, Update, CDS, Front-End Assembly and Testing c1bhd.pnggds_tp.pngteststand.jpegbench_supply.jpeg
                                              Reply  Sun Jun 6 08:42:05 2021, Jon, Update, CDS, Front-End Assembly and Testing c1bhd.png16bit_dacs.pngmyricom.png
                                                 Reply  Tue Jun 22 16:53:01 2021, Ian MacMillan, Update, CDS, Front-End Assembly and Testing 
                                                    Reply  Thu Jun 24 17:32:52 2021, Ian MacMillan, Update, CDS, Front-End Assembly and Testing C1-SU2_Channel_Responses.pdfC1-BHD_Channel_Responses.pdfCDS_Channel_Test.zip
                                                       Reply  Fri Jun 25 14:06:10 2021, Jon, Update, CDS, Front-End Assembly and Testing test_stand.JPG
                         Reply  Sat Apr 10 11:56:14 2021, Jon, Update, CDS, 40m LSC simPlant model x1lsp_main.png
                            Reply  Tue Apr 13 16:24:38 2021, Ian MacMillan, Update, CDS, 40m LSC simPlant model 
                               Reply  Mon Apr 19 13:15:20 2021, Ian MacMillan, Update, CDS, 40m LSC simPlant model 
                                  Reply  Wed Apr 21 10:03:01 2021, Ian MacMillan, Update, CDS, 40m LSC simPlant model Overview.png
                                     Reply  Wed Apr 21 11:01:37 2021, Rana, Update, CDS, 40m LSC simPlant model 
                                     Reply  Fri Apr 23 15:52:19 2021, Ian MacMillan, Update, CDS, 40m LSC simPlant model Plant_framework.pdfSimple_Plant.pdfControls.pdf
                                        Reply  Sun Apr 25 21:21:02 2021, rana, Update, CDS, SUS simPlant model 
                                           Reply  Tue Apr 27 15:15:17 2021, Ian MacMillan, Update, CDS, SUS simPlant model x1sus_single_plant.pdfx1sup.pdf
                                              Reply  Thu Apr 29 13:41:40 2021, Ian MacMillan, Update, CDS, SUS simPlant model Non-IPC_Plant.pdf
                                                 Reply  Fri Apr 30 12:52:14 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                    Reply  Mon May 3 13:35:12 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                       Reply  Tue May 4 14:55:38 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                          Reply  Wed May 5 15:11:54 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                             Reply  Thu May 6 16:13:24 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                                Reply  Fri May 7 11:19:29 2021, Ian MacMillan, Update, CDS, SUS simPlant model 
                                                                   Reply  Wed May 12 13:06:15 2021, Ian MacMillan, Update, CDS, SUS simPlant model SimplePlant_SingleContr.pdfx1sup_isolated.pdfX1SUP_ISOLATED_GDS_TP.pngX1SUP_ISOLATED_C1_SUS_SINGLE_PLANT_Plant_POS_Mod.png
                                                                      Reply  Fri May 21 09:44:52 2021, Ian MacMillan, Update, CDS, SUS simPlant model Transfer_Function_of_Damped_Harmonic_Oscillator.pdf
                                                                         Reply  Fri May 21 14:36:20 2021, Ian MacMillan, Update, CDS, SUS simPlant model Plant_Mod_TF.pdf
                                                                            Reply  Thu Jun 3 13:06:47 2021, Ian MacMillan, Update, CDS, SUS simPlant model SingleSusPlantTF.pdfSUS_PLANT_TF.zip
                                                                               Reply  Mon Jun 7 17:49:19 2021, Ian MacMillan, Update, CDS, SUS simPlant model SingleSusPlantTF.pdfTF_Graph_Code.zip
                                                                                  Reply  Wed Jun 9 13:50:48 2021, Ian MacMillan, Update, CDS, SUS simPlant model SingleSusPlantTF.pdf
                                                                                     Reply  Tue Jun 15 11:46:40 2021, Ian MacMillan, Update, CDS, SUS simPlant model x1sup_isolated-6-15-v1.pdfC1_SUS_SINGLE_PLANT-6-15-v1.pdf
                                                                                     Reply  Wed Jun 30 14:09:26 2021, Ian MacMillan, Update, CDS, SUS simPlant model SingleSusPlantTF.pdfPlant_TF_Test.zip
                                                                                        Reply  Mon Aug 23 15:25:59 2021, Ian MacMillan, Update, CDS, SUS simPlant model SimPlantStateSpace.zip
Message ID: 15998     Entry time: Tue Apr 6 11:13:01 2021     In reply to: 15997     Reply to this: 16012
Author: Jon 
Type: Update 
Category: CDS 
Subject: FE testing 

I/O chassis assembly

Yesterday I installed all the available ADC/DAC/BIO modules and adapter boards into the new I/O chassis (c1bhd, c1sus2). We are still missing three ADC adapter boards and six 18-bit DACs. A thorough search of the FE cabinet turned up several 16-bit DACs, but only one adapter board. Since one 16-bit DAC is required anyway for c1sus2, I installed the one complete set in that chassis.

Below is the current state of each chassis. Missing components are highlighted in yellow. We cannot proceed to loopback testing until at least some of the missing hardware is in hand.

C1BHD

Component Qty Required Qty Installed
16-bit ADC 1 1
16-bit ADC adapter 1 0
18-bit DAC 1 0
18-bit DAC adapter 1 1
16-ch DIO 1 1

C1SUS2

Component Qty required Qty Installed
16-bit ADC 2 2
16-bit ADC adapter 2 0
16-bit DAC 1 1
16-bit DAC adapter 1 1
18-bit DAC 5 0
18-bit DAC adapter 5 5
32-ch DO 6 6
16-ch DIO 1 1

Gateway for remote access

To enable remote access to the machines on the test stand subnet, one machine must function as a gateway server. Initially, I tried to set this up using the second network interface of the chiara clone. However, having two active interfaces caused problems for the DHCP and FTS servers and broke the diskless FE booting. Debugging this would have required making changes to the network configuration that would have to be remembered and reverted, were the chiara disk to ever to be used in the original machine.

So instead, I simply grabbed another of the (unused) 1U Supermicro servers from the 1Y1 rack and set it up on the subnet as a standalone gateway server. The machine is named c1teststand. Its first network interface is connected to the general computing network (ligo.caltech.edu) and the second to the test-stand subnet. It has no connection to the Martian subnet. I installed Debian 10.9 anticipating that, when the machine is no longer needed in the test stand, it can be converted into another docker-cymac for to run additional sim models.

Currently, the outside-facing IP address is assigned via DHCP and so periodically changes. I've asked Larry to assign it a static IP on the ligo.caltech.edu domain, so that it can be accessed analogously to nodus.

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