Some points before we can set up the can:

1. Cable length and type
   • For the DAC, we can use the LEMO outputs and change it to BNC, then have a long BNC cable running over the top of the lab and to the can 
   • ADC is also LEMO, which we can convert to BNC and have a cable run from that to the temperature sensors
   • Sorensens use plain cables, so we need to find ones that can take a few amps of current and have them be long enough to reach the can and temperature sensors
2. Making sure that there is enough space for the can
   • Can measures about 59 cm in diameter, which does fit in the space we chose
3. Finding Sorensens that work and can provide +/-24V to the heater circuit (since Rana said we want the heater to have its own supply)
   • Found two Sorensens, but only one works for our purpose (update: found a second one that works)
   • The other can only proviide up to 20V before shorting and has been labeled
   • Grounding (see point 5) - we want to have these power supplies be independent, but we must still specify a ground
   • There is exactly enough space to fit in the two Sorensens below the ones that are currently there
4. DIN fuses for 15V and 24V
   • 15V fuses can be easily installed since we don't need a very high current for the temperature sensors
   • the 24V fuses seem to be able to handle 6.3A according to the datasheet, but it only says 4V on the fuse itself. Not sure if this is the wrong darasheet...
5. Connecting the crcuit to the DAC and what connectors to use
   • Using the rightmost DAC because there's less important things connected to it, and use the LEMO conncectors to provide the input
   • Connect the grounds of the DAC and the new Sorensens that we're going to install to the grounds of the rest of the Sorensens
   • *confirm that this setup will work and if not find an alternative
6. Which channels to use for the ADC
   • channels 29, 30, 31 are available, so we can use any two of those (one for each sensor)

Also, I need to eventually remake the connections on my circuit board because they are all currently test points. I also need to find a box for the heater circuit and figure out what to do with the MOSFET and heat sink for it. This can either be done before setting everything up, or we can just change it later once we have the final setup for the can ready.

If all of this looks good then we can begin the setup.

gautam:

1. I recommend using a DAC output from the rightmost AI board because (i) only the green steering mirror PZTs are hooked up to it while the other has ETMX suspension channels and (ii) the rightmost AI board has differential receiving from the DAC, and in light of the recent discussions about ground loops, this seems to be the way to go. Outputs 5-8 are currently unused, while outputs 1-4 are used for the EX green input steering mirror control.
2. Converters required:
   • 2 pin LEMO to BNC --- 2pcs for each temp sensor.
   • Single pin LEMO to BNC --- 1pc for AI board to heater circuit input (readily available)