The BCU is acting as: frame grabber, slope computer, High-Voltage Controller for the tip-tilt mirrors, collector of slopes from the FLAO BCU and from the TipTiltUnit, sender of slopes to the ASM.

List of devices of this kind

Name Serial Number Location
BCU #1 0001 ArgosCabinet0
BCU #2 0002 LgswRack2
BCU #3 0003 LgswRack1

  • BCU #1 a.k.a. Heidelberg-BCU (the one originally in HD for SW development)
  • BCU #2 a.k.a. ADC-BCU (the first one with the ADC board received in Florence with the DX rack)

Documentation

Firmware database

Maintenance

The BCU is installed in the ElectronicRackLgsw and it is connected to several devices:
  • to the WfsCamera head via 8 thin LEMO cables on the DSP board
  • to the WfsCamera electronic via a sequencer cable
  • to the 3 PiezoPIS334 used for jitter stabilization in the LgswUnit via 5 LEMOs cable each connected to the 2 HVC boards
  • to the ethernet switch in the LaserSupplyRack
  • to the ASM via the optical fiber connected to the FastLink "FL output"
  • to the TipTiltComputer (aka Bonn unit) via a serial cable on the BCU board
  • to the FLAO pyramid WFS can send slopes to the ARGOS BCU using the Fastlkink "FL input"

ARGOS_BCU_Connections.jpg

ARGOS_BCU_Connections-2.jpg

Power Off the BCU

  1. Make sure the BCU is correctly connected and the ElectronicRackLgsw is on.
  2. From the LabGUI, select the "Rack I/O" tab
  3. Click ON on "BCU Reset" to power OFF the BCU
  4. In the LabGUI select the BCU tab and check that the connection LED is red

Power On the BCU

  1. Make sure the BCU is correctly connected and the ElectronicRackLgsw is on.
  2. From the LabGUI, select the "Rack I/O" tab
  3. Click OFF on "BCU Reset" to power ON the BCU
  4. In the LabGUI select the BCU tab and check that the connection LED turns green. It typically takes <30s.

Remove a BCU from the ElectronicRackLgsw

  1. Power off the BCU using the remote command. LEDs should be all off.
  2. Take a picture of current cabling.
  3. Unplug all cables paying attention that they are all labelled.
  4. Unscrew the BCU from the rack (four small cross-screws on each corner).
  5. Take partially out smoothly the BCU and reach the power switch on the back of the BCU to switch it off.
  6. Disconnect the power plug on the back of the BCU. It is the only cable on the back of the BCU.
  7. Fully remove the BCU from the rack.
  8. Store the BCU in ArgosCabinet0
  9. Update the corresponding twiki page and notify Lorenzo.

Install a BCU in the ElectronicRackLgsw

  1. [Only if you need to change the IP address] It may be easier to do this using a laptop. If it is already on the correct subnet you can use the VirtualBox and its EngPanel.
  2. Make sure the remote power to the BCU power plug is off by checking on the remote command.
  3. Make sure the power switch on the back of the BCU is set to ON.
  4. Connect the power plug on the back of the BCU.
  5. Insert the BCU in the rack following the red rails.
  6. Screw the BCU to the rack (four small cross-screws on each corner).
  7. Plug all cables paying attention to labels.
  8. Take a picture of current cabling.
  9. Power on the BCU using the remote command. LEDs should be all on.
  10. Double check that the optical fiber is connected to the FL output; a single blue LED is on if there is already a physical link (the selected ASM input port is the ARGOS's one)
  11. Update the corresponding twiki page and notify Lorenzo.

Firmware configuration

Use the EngPanel to:
  • set the IP address
  • upload a new firmware version
  • read diagnostic parameters
  • check configuration

Read power supply voltage on BCU board

Roberto provided 2 pages showing HowToAdjustBcuPowerSupply.

GustavoRahmer maintains informations about HowToInstallARGOSFiberSplitter
Topic attachments
I Attachment Action Size Date Who Comment
ARGOS_BCU_Connections-2.jpgjpg ARGOS_BCU_Connections-2.jpg manage 190 K 24 Apr 2014 - 07:07 LorenzoBusoni photo of cabled BCU and WfsCamera rack
ARGOS_BCU_Connections.jpgjpg ARGOS_BCU_Connections.jpg manage 218 K 23 Apr 2014 - 21:53 LorenzoBusoni BCU board names and cabling
ARGOS_CodesMemMap_v4.xlsxls ARGOS_CodesMemMap_v4.xls manage 150 K 15 Apr 2014 - 12:36 LorenzoBusoni From Mario 9 apr 2014
BCULogic_11_65.rbfrbf BCULogic_11_65.rbf manage 1 byte 01 Jan 1970 - 00:00 UnknownUser Should have been 11_68, it is actually 11_65. From Mario Andrighettoni - 19 Jul 2013
BCULogic_11_68.rbfrbf BCULogic_11_68.rbf manage 1 MB 19 Nov 2013 - 18:13 LorenzoBusoni From Mario 19 Nov 2013
BCULogic_11_69.rbfrbf BCULogic_11_69.rbf manage 1 MB 19 Nov 2013 - 18:13 LorenzoBusoni From Mario 19 Nov 2013
BCULogic_11_70.rbfrbf BCULogic_11_70.rbf manage 1 MB 04 Feb 2014 - 18:15 LorenzoBusoni From Mario on 04 Feb 2014. Same version on 03 Feb is bugged
BCULogic_11_71.rbfrbf BCULogic_11_71.rbf manage 1 MB 15 Apr 2014 - 14:17 LorenzoBusoni Bug fixing. From Mario 15 apr 2014
BCUNios_5_08_0046_readFromFlash.binbin BCUNios_5_08_0046_readFromFlash.bin manage 256 K 12 May 2014 - 23:53 UnknownUser  
BCUNios_5_09_0046.binbin BCUNios_5_09_0046.bin manage 150 K 07 Jul 2014 - 15:14 LorenzoBusoni Sent from Mario to Alfio about May, 25th 2014
BCUNios_5_09_0046.bin-NObin-NO BCUNios_5_09_0046.bin-NO manage 150 K 12 May 2014 - 23:53 UnknownUser  
DSPLogic_8_46.rbfrbf DSPLogic_8_46.rbf manage 1 MB 15 Apr 2014 - 14:12 LorenzoBusoni DSP Logic 8.46 It allows enabling/disabling of ADC
LBT-MIC-TRE-00910-0001_Rev3.pdfpdf LBT-MIC-TRE-00910-0001_Rev3.pdf manage 2 MB 15 Apr 2014 - 11:31 LorenzoBusoni from Mario 9 apr 2014
Topic revision: r21 - 19 May 2016, MarcoBonaglia
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