This router was confiscated by the GC guys this morning around ~10am.  They barged in and said that someone at the 40m had connected a new router, and we had magically taken down half of the GC network.  The cable was plugged in to the wrong port on the back of the router. 

Junaid / Christian said that they would "secure" the router, and then reinstall it.  Apparently just having a password didn't satisfy them.  This was the compromise, versus them just taking the router and never bringing it back.

I retrieved the newly "secured" router from Junaid.  It had apparently been hooked up to the GC network via it's LAN port, but it's LAN services had no been shut off.  It was therefore offering a competing DHCP server, which will totally hose a network.  A definite NONO.

The new SSID is "40mWiFi", it's WPA2, and the password is pasted to the bottom of the unit (the unit is back in it's original spot on the office computer rack.

   I have worked out the fibers we need to get for the following distribution scheme:

1) We have a laser placed at the 1Y1 rack.  A part of the power is split off for monitoring the laser output and sent to a broadband PD also placed in the same rack.  The RF excitation applied to the laser is split and sent to LSC rack (1Y2) and used to calibrate the full PD+Demod board system for each RFPD.

2) A single fiber goes from the laser to a 11+ way switch located in the OMC electronics cabinet next to the AP table.  From here the fibers branch out to three different tables.

Cable for the laser source to the OMC table:

We also require a cable going from PSL table to the ETMY table:   This is not a part of the RFPD characterisation.  It is a part of the PSL to Y-end Aux laser lock  which is a part of the green locking scheme.  But it is  fiber we need and might as well order it now along with the rest.

If you would like to add anything to this layout / scheme, please comment.  On Monday Eric is going to take a look at this and place orders for the fibers.

(I have included the lengths required for routing the fibers and added another 20% to that ) 

Mike Pedraza came by today to install a new wireless network router configured for the 40m lab network.  It has a 'secret' SSID i.e. not meant for public use outside the lab.  You can look up the password and network name on the rack.  Pictures below show the location of the labels.

 Mike P swapped in a new network router Linksys E1000

Yuta is going to bring this up at the 40m meeting so it can be argued over, but we (I) want a permanent IR beat setup at the PSL table.  This isn't a novel idea or anything, I just think it will save us time if we can quickly re-acquire the beat signal, so I'm bringing it up again.  Eventually, as Koji suggested to me, we can make the IR beat part of a servo, so that the green beat is always within the bandwidth of the green beat PD.  But for Phase 1, it's enough to just see the Ir beat on a ~1GHz PD.  Suresh tells me most of the bits and pieces are around, we just have to gather them all in one place.

[Yaakov, Eric, Jenne, Yuta]

Two of our surfs, Yaakov and Eric, pulled two unused RG-405/SMA cables that had been running from 1X2 to (mysteriously) 1Y2 racks.  They left the 1X2 end where it was and pulled the 1Y2 end and rerouted it to the control room.  We labeled both ends appropriately.

The end at 1X2 is now plugged into a splitter that is combining the RF input monitor outputs for the X and Y beatbox channels, so that we can watch the beat signals with the HP8591 in the control room.

I'm seeing LOTS OF STUFF NOT CHECKED INTO THE SVN!!!  both modified things that haven't been updated, and things that looked like they haven't been checked in at all.

Please check in your stuff to the SVN!  We need the record!

Look through EVERYTHING that you think you might have touched, or even care about, and make sure it's checked in.

We really need something better to replace the access connector when we're at air.  This tin foil tunnel crap is dumb.  We can't do any locking in the evening after we've put on the light doors.  We need something that we can put in place of the access connector that allows us access to the OMC and IOO tables, while still allowing IMC locking, and can be left in place at night.

 It is in the shop. It will be ready for the next vent. Koji's dream comes through.

 Can we see the full design?  If we can't lock the mode cleaner with this thing on then it's really of no use.  We want it to be equivalent to the light doors, but allow us to keep the mode cleaner locked.  That's the most important aspect.

 It also needs to be wide enough that the MMT beam can go through, so that we can not only lock the MC, but also work on the rest of the IFO.

 24" diameter clear acetate access connector is in place. The 0.01" thick plastic is wrapped around twice to insure air and bug tight barrier for the MC to lock overnight. The acetate transmission for 1064 nm is 90 % This was measured at 150 mW   2.5 mm beam size.

The SP table was found open this morning. Please, do not make optics dirty!

I cleaned up the tops of the SP table.

Stop storing your junk, boxes, laptops, etc. on the optical tables. This includes the big SP table. Please move all of that junk into racks or shelves, etc.

 Aluminum sheet as shown will replace the acetate. Side entries for your arms and "window" on the top will be covered with acetate using double- sided removable-no residue tape 3M 9425

 The second loop of the bungee cord should be on the top of the acrylic  and still on the supporting aluminum tube as shown.

 After some system updates this evening, firefox can no longer handle the html input encoding for the elog.  I'm not sure what happened.  You can still use the "ELCode" or "plain" input encodings, but "HTML" won't work.  The problem seems to be firefox 17.  ottavia and rosalba were upgraded, while rossa and pianosa have not yet been.

I've installed chromium-browser (debranded chrome) on all the machines as a backup.  Hopefully the problem will clear itself up with the next update.  In the mean time I'll try to figure out what happened.

To use chromium: Appliations -> Internet -> Chromium

Koji and I figured out what the problem is.  Apparently firefox 17.0 (specifically it's user-agent string) breaks fckeditor, which is the javascript toolbox the elog uses for the wysiwyg text editor.  See https://support.mozilla.org/en-US/questions/942438.

The suspect line was in elog/fckeditor/editor/js/fckeditorcode_gecko.js.  I hacked it up so that it stopped whatever crappy conditional user agent crap it was doing.  It seems to be working now.

Edit by Koji: In order to make this change work, I needed to clear the cache of firefox from Tool/Clear Recent History menu.

I've installed the new nds2 packages on the control room machines.

These new packages include some new and improved interfaces for python, matlab, and octave that were not previously available. See the documentation in:

  /usr/share/doc/nds2-client-doc/html/index.html

for details on how to use them.  They all work something like:

  conn = nds2.connection('fb', 8088)
  chans = conn.findChannels()
  buffers = conn.fetch(t1, t2, {c1,...})
  data = buffers(1).getData()

NOTE: the new interface for python is distinct from the one provided by pynds.  The old pynds interface should continue to work, though.

To use the new matlab interface, you have to first issue the following command:

   javaaddpath('/usr/lib/java')

I'll try to figure out a way to have that included automatically.

The old Matlab mex functions (NDS*_GetData, NDS*_GetChannel, etc.) are now provided by a new and improved package.  Those should now work "out of the box".

 I've tried new nds2 Java interface in Matlab. Using findChannels method of the connection class I see only slow, DQ and trend channels. I could even download data online using iterate method. When it will be possible to do the same with fast non-DQ channels?

>> conn = nds2.connection('fb', 8088);
>> conn.iterate({'C1:LSC-XARM_OUT'})
??? Java exception occurred:
java.lang.RuntimeException: No such channel.
    at nds2.nds2JNI.connection_iterate__SWIG_0(Native Method)
    at nds2.connection.iterate(connection.java:91)

NDS2 is not designed for non DQ channels - it gets data from the frames, not through NDS1.

For getting the non-DQ stuff, I would just continue using our NDS1 compatible NDS mex files (this is what is used in mDV).

The NDS2 protocol is not for non-DQ, but the NDS2 client is capable of talking both the NDS1 and NDS2 protocols.

fb:8088 is an NDS1 server, so the client is talking NDS1 to fb.  It should therefore be capable of getting online data.

It doesn't seem to be seeing the online channels, though, so I'll work with Leo to figure out what's going on there.

The old mex functions, which like I said are now available, aren't capable of getting online data.

Leo fixed an issue with the new nds2-client packages that was preventing it from retrieving online data.  It's working now from matlab, python, and octave.

Here's an example of a dataviewer-like script in python:

#!/usr/bin/python

import sys
import nds2
from pylab import *

# channels are command line arguments
channels = sys.argv[1:]

conn = nds2.connection('fb', 8088)

fig = figure()
fig.show()
for bufs in conn.iterate(channels):
    fig.clf()
    for buf in bufs:
        plot(buf.data)
    draw()

During our 'Women in Physics' tours today, we were reminded that there are several bench power supplies being used as permanent inside.

Some are being used to power PZTs, AOMs, VCOs, RFPDs, etc. On Wednesday, after the meeting, we will all go inside and remove one and replace it with a fused, professional wiring to the rack power supplies. The temporary ones must be removed.

Did someone unlock the back door by the (unofficial) bike storage lately?  Out of habit, I checked the door behind me while about to leave, and it is unlocked. 

Please recall that if you leave through that door, it should automatically lock behind you (if it was locked already), however if you unlock and enter through the back door, it stays unlocked until someone locks it again.

(Obviously, I'm locking the door before I actually go).

I broke a small bit while using the 40m drill press to vent some 1/4-20 screws for the cryo experiment.

I replaced it and refilled the small bit row in the bit index I was using; there were ~10 missing sizes

 The 785 analyzer in the 40 had a wonky hard to read screen. I was hoping that a new white CRT would fix all the problems. 

I installed a white CRT, which didn't fix the wonkyness, but I adjusted the CRT position, brightness, focus settings to make the screen somewhat more readable.

BEFORE:

AFTER:

If we want to send the thing in for service to fix the wonkyness, we should probably hold on to the old CRT because they will probably replace the whole screen assembly and we'll lose our white screen.

It's in the elog already: http://nodus.ligo.caltech.edu:8080/40m/9922

But it seems like things still haven't fully recovered, or have recovered to an old state?  Why is the cdsutils install I previously did in /ligo/apps now missing?  It seems like other directories are missing as well.

There's also a user:group issue with the /home/cds mounts.  Everything in those mount points is owned nobody:nogroup.

I also can't log into pianosa and rosalba.

 I also still think it's a bad idea for everything to be mounting /home/cds from an IP address.  Just make a new DNS entry for linux1 and leave everything as it was.

I finally made good on the LIFE TIME WARRANTY on the ancient, Jamie-made 1811 power supply with the faulty switch:

Back to fully working form.  Hopefully I'll still be around the next time it breaks in 16 years.

 Placed in PD cabinet in Y arm, next to the OTHER Jamie-made 1811 power supply from 1998.

Rana wanted the latest GDS installed (for newest DTT), so I made an ubuntu 12 install directory into which I installed

• gds-2.16.3.2
• root_v5.34.03

I installed this stuff in

/ligo/apps/ubuntu12

which is the "official" location for stuff compiled specifically for ubuntu12.

Given that the workstations are diverging in OS (some ubuntu10, some ubuntu12), we're going to have to start supporting different software packages for the different versions, thus the new ubuntu12 directory.  This will be a pain in the butt, and will certainly lead to different versions of things for different machines, different features, etc.  We should really try to keep things at the same OS.

In any event, if you want to enable the GDS on an ubuntu 12 machine, source the ubuntu12 ligoapps-user-env.sh file:

controls@ottavia|~ > . /ligo/apps/ubuntu12/ligoapps-user-env.sh

To make the latest cdsutils available in the control room, we've done the following:

Upgrade pianosa to Ubuntu 12 (cdsutils depends on python2.7, not found in the previous release)

• Enable distribution upgrades in the Ubuntu Software Center prefs
• Check for updates in the Update Manager and click the big "Upgrade" button

Note that rossa remains on Ubuntu 10 for now.

Upgrade cdsutils to r260

• Instructions here
• cdsutils-238 was left as the default pointed to by the cdsutils symlink, for rossa's sake

Built and installed the nds2-client (a cdsutils dependency)

• Checked out the source tree from svn into /ligo/svncommon/nds2
• Built tags/nds2_client_0_10_5 (install instructions are here; build dependencies were installed by apt-get on chiara)
• ./configure --prefix=/ligo/apps/ubuntu12/nds2-client-0.10.5; make; make install
• In /ligo/apps/ubuntu12: ln -s nds2-client-0.10.5 nds2-client

nds2-client was apparently installed locally as a deb in the past, but the version in lscsoft seems broken currently (unknown symbols?). We should revisit this.

Built and installed pyepics (a cdsutils dependency)

• Download link to ~/src on chiara
• python setup.py build; python setup.py install --prefix=/ligo/apps/ubuntu12/pyepics-3.2.3
• In /ligo/apps/ubuntu12: ln -s pyepics-3.2.3 pyepics

pyepics was also installed as deb before; should revisit when Jamie gets back.

Added the gqrx ppa and installed gnuradio (dependency of the waterfall plotter)

Added a test in /ligo/apps/ligoapps-user-env.sh to load the new cdsutils only on Ubuntu 12.

The end result:

controls@chiara|~ > z
usage: cdsutils  

Advanced LIGO Control Room Utilites

Available commands:

  read         read EPICS channel value
  write        write EPICS channel value
  switch       switch buttons in standard LIGO filter module
  avg          average one or more NDS channels for a specified amount of seconds
  servo        servos channel with a simple integrator (pole at zero)
  trigservo    servos channel with a simple integrator (pole at zero)
  audio        Play channel as audio stream.
  dv           Plot time series of channels from NDS.
  water        Live waterfall plotter for LIGO data

  version      print version info and exit
  help         this help

Add '-h' after individual commands for command help.

I've checked out cdsutils-274 to /opt/rtcds/cdsutils, and updated the /ligo/apps/ligoapps-user-env.sh to have the newer machines use it by default. This was to gain access to the cdsutils.Step methods for use in the smooth ASS handoffs script. 

I installed awgstream-2.16.14 in /ligo/apps/ubuntu12.  As with all the ubuntu12 "packages", you need to source the ubuntu12 ligoapps environment script:

controls@pianosa|~ > . /ligo/apps/ubuntu12/ligoapps-user-env.sh
controls@pianosa|~ > which awgstream
/ligo/apps/ubuntu12/awgstream-2.16.14/bin/awgstream
controls@pianosa|~ > 

I tested it on the SRM LSC filter bank.  In one terminal I opened the following camonitor on C1:SUS-SRM_LSC_OUTMON.  In another terminal I ran the following:

controls@pianosa|~ > seq 0 .1 16384  | awgstream C1:SUS-SRM_LSC_EXC 16384 -
Channel = C1:SUS-SRM_LSC_EXC
File    = -
Scale   =          1.000000
Start   = 1092790384.000000
controls@pianosa|~ > 

The camonitor output was:

controls@pianosa|~ > camonitor C1:SUS-SRM_LSC_OUTMON
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:44:50.997418 0  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:49.155525 218.8  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:49.393404 628.4  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:49.629822 935.6  
...
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:58.210810 15066.8  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:58.489501 15476.4  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:58.747095 15886  
C1:SUS-SRM_LSC_OUTMON          2014-08-22 17:52:59.011415 0 

In other words, it seems to work.

I just installed cdsutils r351 at /ligo/apps/linux-x86_64/cdsutils.  It should be available on all workstations.

It includes a bunch of bug fixes and feature improvements, including the step stuff that Rana was complaining about.

Cdsutils r361 installed, for the "avg" updates. aLOG  

It's super cold in the control room and EE bench area tonight.  I'm wondering if, similar to what happened on Dec 29th (http://nodus.ligo.caltech.edu:8080/40m/10846) the campus steam is off?  Or just our heater is broken?  The thermostat is cranked up to 80 over by the bathrooms (this is usually ~74F), but we're still cold.

It's 69F in the control room right now (usually mid-high 70s).

EDIT, JCD, 4am: It's 64.3F in the desk area, 67.8F in the control room.  It also smells in the control room like some heater has been off for a while, and is turning back on - that burned dust smell that happens after you haven't turned on the heater all summer. 

EDIT again: The burn-y smell is getting stronger I think.  Security is sending someone over to come check it out.

After some searching, including help from 4 security guys (I think they don't have a lot to do at 4:30am :), we found that Ottavia is super warm, and smelled burn-y.  She has been powered down and unplugged.  Security guys may call Steve's desk to follow up later today.

Fire alarm went off several minutes ago. Talked to security and they said there was no fire. It beeped twice again just now. No one has been working on the IFO today.

The fire alarm came on around 15:05  for about 2-3 minutes. We all  left the lab and counted heads.  I called Paul Mackel x2646 (cell 626/ 890- 3259) at Fire Protection Services. He said that this alarm test was planned and we should of got an email notice. Perhaps I missed that notes.

I cleaned up the south Electronics bench today.

The other two, as well as several of the desks are in some chaotic state of degradation. Please clean up your areas and put away projects which do not need to remain staged for several months. Try to eliminate "that's not mine" and "I don't know who's that is" from your vocabulary.  Fight back against entropy!

(Steve, Chris)

The pumpdown had stalled because of some ancient vacuum interlock code that prevented opening the valve V1 between the turbo pump and the main volume.

This interlock [0] compares the channels C1:Vac-P1_pressure and C1:Vac-PTP1_pressure, neither of which is functioning at the moment. The P1 channel apparently stopped reading sometime during the vent, and contained a value of ~700 torr, while the PTP1 channel contained 0. So the interlock code saw this huge apparent pressure difference and refused to move the valve.

To bypass this check, we used caput to enter a pressure of 0 for P1.

[0] /cvs/cds/caltech/state/from_luna/VacInterlock.st

I had Rich show me his approach to a chassis for the Acromag modules. The document tree for his design can be found on the DCC. Note that he's using the high densitymodel ES series, which is available as a bare board variant with pluggable screw terminals:

He can fit up to 4 of these in a 2U chassis and has outsourced the wiring from front panel Dsubs to the board connectors to an external company. At the 40m (and in West Bridge) we currently only have the rail mounted XT series

At first glance the specs are very similar. Both A/D and D/A flavors have 16-bit precision in both cases. The high density ES series with Rich's layout can achieve 128 A/D per 2U, 64 D/A per 2U, or 384 DIO per 2U. Into a 4U chassis of the type we have currently we can fit ~32 XT modules (assuming two rows), which results in very similar numbers, except for the DAC, of which we could fit more.

XT1221-000 (8 diff. channel 16-bit ADC)                          $495.00      $61.88/ch
XT1541-000 (8 channel 16-bit DAC and 4 discrete I/O )    $525.00      $65.63/ch
XT1120-000 (16 channel DIO)                                         $320.00     $20.00/ch

ES2162-0010 (32 diff. channel 16-bit ADC)                     $2050.00    $64.06/ch
ES2172-0010 (16 channel 16-bit DAC)                           $1400.00    $87.50/ch
ES2113-0010 (96 channel DIO)                                      $1100.00    $11.46/ch

It's cheaper to stick with the current XT models, but they need the bulkier 4U chassis. The good news is that actually all these models have 16 bit precision, which wasn't clear to me before. Lydia and I will work out what connectors we want on the boxes, and how many modules/channels we need where. Rich also got me in touch with Keith Thorne, who handles the analog I/O Acromag at LLO, and I will ask him for advice. From his documents on the DCC it seems that he is using yet another series: EN. The 968EN-4008 for example is a rail-mounted ADC with pluggable connections, but looses quite clearly in price per channel.

For a generic multipurpose DAQ interface box the ES series is the best approach in my opinion, because it offers a more compact design. We could for example fit 1 ADC, 2 DAC, 1 DIO in a 2U chassis for 32/32/96 channels. The combined price tag for this scenario would be ~$6k.

Current Acromag chassis status:

I found out that Acromag offers DIN rail mounting kits for the open boards, so we can actually fit both XT series and ES/EN series in the same boxes, depending on the signal needs. The primary design driver will be the ES footprint, but if we find we don't need that many channels in some of the units, it's interchangable. For the wiring to the front panel - for which we will have a standard front panel express design, but may order modified ones for the custom needs of the 40m, I will contract the same company that Rich used for the wiring in his DIO box (Panel mount connectors terminating in loose wires/pre-routed plugs for Acromag units). We will either run a single DIN rail along the length of the chassis, or have two in parallel across.

Lydia and I took close looks at the breakout arrangements on the rack sides, and determined that because of the many cross-connects between non-DAQ ports it is not possible to redo and debug this in a reasonable amount of time without essentially shutting down the interferometer. So instead, we will connect the chassis directly to the slots that were previously leading to the slow machines. They come in two different flavors: The ADC modules have 64 pins, while the DIO and DAC ones have 50. There are a couple things we can do:

• For ADC: Put favorite 64+ pin connector on front panel. I would advocate for the 68 pin VHDIC (SCSI-5). This standard ist widely used, has a sturdy connector, and usually off-the-shelf cables have twisted pair leads.
• For DAC+DIO: Either use favorite 50 pin connector (there are 50-pin DSUB connectors, and also 50-pin IDC connectors with backshell), or also send the signals through VHDIC connectors, tolerating a few unused lanes. I would prefer the second option, after all it all goes to some 64 pin VME-crate backplane connector in the end, so if we ever get rid of the rack-side breakouts the wiring will much more uniform.
• For good measure, we will add a few (16 maybe) BNC connectors to the front panel.
• A standardized front panel could have a variety of different connectors by default: DSUBs, BNCs, etc., to be used when needed with some initial default wiring.
• Note that THEORETICALLY we could even connect all backplane EUROCARD ports to the Acromag chassis and do the cross-connect wiring entirely inside, although that would make the inside extremely messy.

Based on Rich's design I will get started on a parts list and wiring diagrams to send out to the cable company.

Very, very cool!  

While walking down to the X end to reset c1iscex I heard what I would call a "rythmic squnching" sound coming from under the turbo pump.  I would have said the sound was coming from a roughing pump, but none of them are on (as far as I can tell).

Steve maybe look into this??

Ifo pressure was 5.5 mTorr this Monday morning. The PSL shutter was still open. TP2 controller failed. Interlock closed V1, V4 and VM1

Turbo pump 2 is the fore pump of the Maglev. The pressure here was 3.9 Torr so The Maglev got warm ~38C but it was still rotating at 560 Hz normal with closed V1

Pressure plots are not available because of computer problems.

What I did:

Looked at pressures of Hornet and Super Bee  Instru Tech. Inc

Closed all annuloses and VA6,  disconnected V4 and VA6 and turned on external fan to cool Maglev

Opened V7 to pump the Maglev fore line with TP3

V1 opened manually when foreline pressure dropped to <2mTorr at P2 and the body temp of the Maglev cooled down to  25-27 C

VM1 opened at 1e-5 Torr

Valve configuration: vacuum normal with annuloses not pumped

Ifo pressure 8.5e-6 Torr -IT at 10am,  P2 foreline pressure 64 mTorr, TP3 controller 0.17A   22C  50Krpm

note: all valves open manually, interlock can only close them

PS: please call me next time you see the vacuum is not Vacuum Normal

I have recommissioned the Zojirushi coffee pot lid. You may, once again, align the dots in order to make the carafe pourable.

Details:

The Zojirushi lid is a two part mechanism:

1. The top part of the lid must be removed for cleaning.
2. When replacing the lid the two components must be aligned to < 3 mrad precision so that the "teeth" are able to land in the groove.
3. There is a 4-fold degeneracy in this process. To break the degeneracy, align the dot on top with the spout gap (visible from the bottom view).
4. After proper alignment and mating, the two parts should snap together and the relative alignment wiggle available should be < 2 mrad.
5. After screwing the two-piece lid onto the carafe, ensure that the 2 dots are separated by < 170 deg in the closed position.