After returning the sat boxes to the rack, M0 F1 was glitchy.  Filiberto reseated the cable at the Sat box which appeared to fix it.  Now hours later, we are aligning the BOSEMs and have found that this signal peggs at ~6k alot.  We have been able to fix it by reseating the cable at the sat box, but this is not working right...

After removing them from the stand last Thur, 2 Sat boxes were modified to fix a blown IC chip (OP2177).  Symptoms were that output of IC chip were railing.  Replaced with OP284, while waiting for correct OP2177 which are on order.  Likely the Sat boxes will have to revisit the EE shop when these chips are in later this week.  We will progress with BOSEM alignment and testing until then.
Filiberto reinstalled the 2 sat boxes into the test stand this morning.

 We completed the test assembly of the Beam Splitter Upper Structure. To ease installation of the Shear Plates we enlarged all but the top two mounting holes to 29/64”.
  
Beam Splitter Upper Structure Assembly Procedures: 

(1). Assemble the Upper Structure Face Plates, Bottom Ring and US Cross Member. Snug the bolts enough to allow a semi-ridge structure, but with enough give to allow some wiggle. This will help to align the Face Plate bolts.
 
(2). Stand the assembled Upper Structure upright on a level surface.
 
(3). Hold one of the Shear Plates to a Face Plate and run in the top two bolts. Lightly snug these bolts, but do not tighten.
 
(4). Run in the remaining bolts so the washer has about a 1 mm gap between the Shear Plate and the Face Plate. Note: Rock the structure from side to side slightly and/or wiggle the Shear Plate to allow alignment of the bolts. When you get to the bottom bolts, it may be necessary to lever up the Shear Plate due to sag.
 
(5). Repeat steps 3 and 4 on the other Shear Plate.
 
(6). When both Shear Plates are mounted, tighten the bolts using a crossing pattern, paying close attention to squaring the Shear Plates to the Face Plates. Make at least two rounds of tightening to ensure the structure does not creep, as the bolts are tightened.
  
(7). When all the Shear Plate bolts are tight, tighten the bolts on the Bottom Ring and US Cross Members.

(8). Remove the Shear Plates and store until the Beam Splitter has been installed in the chamber and aligned. 

This procedure should ensure the Shear Plate to Upper Structure fit is correct for installation. If it is not, you may try slightly loosening the bolts on the Bottom Ring allowing the Structure to “float” into a square alignment. Tighten all bolts as noted above. 

Syptoms before plugging in any OSEMs - medm actuation verified to be disabled.
OSEM signals strange in 3 of 12 signals (-4k, -31k, -19k, when should be zero).
Fault lights on 3 of 5 sat boxes.

2 of 2 yellow cables tested out ok.  Even unplugged, signals strange.

Powered bscteststand down from work station.  No go.
Powered it down at computer (button)
Powered down Expansion chassis.
Powered on chassis
Powered on bscteststand

Ran startup script

Richard poked around

Powered everything down again
Reseated ADC

More troubleshooting at the rack by Richard/Filberto...
Pulling 2 satellite boxes to take to the EE shop.

After a report form Vincent that the time had drifted enough to make awgstream unusable, I modified the configuration files on seiteststand and workstation for ntp.  

On seiteststand:
1. stop ntpd
2. modify settings in configuration file
3. sync time with ntp server
4. start ntpd

On workstation:
1. stop ntpd
2. Modify settings in configuration file to use seiteststand as time server
3. sync time with seiteststand
4. start ntpd

Checked bscteststand, suswork1, found the time had drifted on these as well.  Modified the configuration files on bscteststand and syswork1 similar to seiteststand, workstation.

Checked times, they are sync'ed again.  Will monitor this, seiteststand was stubborn about being able to connect to the ntp server although bscteststand had no problem.

See images for final positioning work.  Great job JimW EricA MitchR!

Testing will begin on Unit#3 after final instrumentation and cable routing.

Last week we swapped QUADs out on the mechanical test stand.  This never being done before, it took a few days to work the kinks out of maneuvering 4 sections of QUADs simultaneously.  Currently, the Q1 upper structure is in it's case waiting for an N2 purge, while the lower structure is parked in the modified LSAT Top Plates on the "installation Genie".  It's case will not arrive for a few weeks yet.

Q2 was fully hung earlier in the week.  As of today, all 6 DOFs have been adjusted mechanically so we are installing the tablecloth and BOSEMs.  A final tweak to pitch will likely be needed during the OSEM installs over the next day or so.  (Note our alignment is to within a few mRad in pitch with the 5mm gap between chains set with a 5mm spacer.)  The chains are slightly misaligned laterally (side shift) with the barrel of the ReTM set <1mm off the barrel of the TM.  We could adjust this out at the expense of overall height of the Test Mass.  We opted to live with the slight side shift for now.

Q2 has one Top Stage Blade cartridge which is almost out of yaw range in one direction.  The screws are very difficult to adjust under normal circumstances, but one of the outer most blade clamp 3/8-16 is feeling very rough when loosening.  The yaw which is somewhat pinned is the motion of M0 in the counter-clockwise direction as viewed from above.

I will be applying some critical security patches to the aLOG system tomorrow around 8:00am.  The system will require a reboot.  Downtime is estimated to be on the order of 5-10 minutes.

Please remember to save any unfinished entries as a draft prior to 8am pacific tomorrow.

Added new Linux workstation to SUS Quad test stand.  It's name is suswork1.

When logged in as user controls, the home directory is the same one as on bscteststand.  You should be able to run programs on suswork1 the same as you would on bscteststand without having to ssh to bscteststand first.  Matlab is installed locally on suswork1.  Adobe Reader is installed, and firefox is set up with the aLIGO LHO Logbook as a bookmark.  Be sure to use your own name for logbook entries!

All /cvs/cds/llo files are visible on suswork1, as are all /apps/Linux files.

Details - 
mounted bscteststand:/cvs, /apps, /opt, and /home/controls to suswork1:/cvs, /apps, /export/opt, and /export/controls.
Made symbolic links from /export/opt to /opt for directories in /export/opt.  
Set up shared library default paths to the same as on bscteststand.
Installed or updated libraries to run gds tools.
Set up suswork1 to ntp sync time from bscteststand.  

Let me know when you find stuff that doesn't work.

We have completed assembly of the first Beam Splitter Lower Structure. No fit, machining, or alignment issues were noted. The main Lower Structure drawing (D080005) calls for eight 1/4-20x0.5 SHCS. However, the EQ Stop Plate (D080008) and the LS-US Bracket (D080011), both require 1/4-20x.05 SHCS and therefore 16 of the 0.5” bolts are required.

Over the past two weeks we have repurposed the three X2200 units
for aligo auxillary system prototyping. From top to bottom the
X2200 are being used for:

top: 10.11.0.70, Cyrus network management tests
middle: 10.11.0.72, Patrick aconlog prototype
bottom: 10.11.0.71, Cyrus second net mgt machine

This morning I noticed some extra testpoints on the GDS Overview medm on the Test Stand even though I was not running measurements or had dataviewer open. I ran Dave B.'s 'system_check' script that checks to see if the processes are running correctly.  There were several errors with processes not running and so I decided to reboot the front end.  Afterwards, the test points cleared and the system_check came up clean.  The workstation linux machine was also running really slowly, so that machine was rebooted as well.

We have completed the assembly of the five Beam Splitter Top Stage cartridges, which are undergoing the 100-hour creak bake.  

Assembly Notes:
 
(1). We made the assembly jig out of four sections of aluminum box. For assembly, the end of the Base Plate is secured to the box sections via 1/4-20 SHCS into tapped holes. For blade pull down, the two end sections, bolted to the Base Plate, are dog clamped to the optics table. The remaining two box sections are slid under the Base Plate near the edge of the optics table to support the front half of the assembly. (See photos Assembly Jig and Clamp Down). 
     
(2). When installing Helicoils into the Blade Clamp Bottom ensure the two outer ones are run down to the bottom (the curved side) of the clamp. If not the 1/4-20x 1” mounting bolts will not engage the Helicoil.

(3). The Rotational Bushing can be a tight or loose fit in the Bottom Plate or Blade Clamp Base. If you have to tap or press to set the bushing, install a 1/4-20 SHCS into the bushing and push on the head of the SHCS. Tapping or pressing directly on the phosphors bronze will distort the bushing making it difficult to insert into the other part.
 
(4). If the mounting SHCS for the adjuster assembly do not line up with the slots cut into the Base Plate, loosen the 8-32 SHCS holding the two halves together to allow some free play. Once all five SHCS have been installed, the 8-32s can be tightened back down. This may cause some binding when trying to rotate the adjuster. 

(5). Use 20kg for the blade pull down weight. The assembly book calls for 50kg, which is too much.  

The General Standards ADC adapter board was replaced today after some investigations by Richard, Hugh, Dave B. and others regarding the flat-lined channels seen this morning by Corey.  The previous General Standards ADC board had a Serial #080421-35.  The replacement board (same model) installed today has a Serial #091102-16.  The channels have been confirmed to be reading and outputting data through dataviewer. 

the SATABOY finally finished its RAID6 build at 15:00.
Dan noticed that the spare 2TB SATA drive was configured
as a global spare for the 64GB SSD drives as well! So 
we removed it from the global spare pool and added it to
the SATA RAID pool only.

I connected the Sun X4270 (frame writer) fibre channel
cards to the sataboy controllers. There are two FC cards
in the Sun and two controllers, so the connection is:

sun pci-e slot1 to controller 0 (left connector)
sun pci-e slot4 to controller 1 (left connector)

I've handed the system over the DCS for QFS install.

Dave, Greg, Dan