J. Freed, J. Warner

We set up a small rack to be put into the optics lab for the SPI build housing (most) SPI electronics and hooked up all the power cables for these electronics (For the build we are using a dual source RF generator to instead of the 80MHz OCXO and Single Sideband Mixer like in the final set up). Before this set up can be used, a RF power meter should to be used to check to make sure the correct RF power is going to the AOMs in the SPI laser prep chassis. 

After applying power to the TIA chassis I also checked that the DB25 on the front panel of varient 2 of the TIAs was correctly outputing -15V on pins 1-10. 

Results:

Pins 1-4,7-10 were outputing -14.8V

Pins 5-6 were outputing -15.1V

This discrepancy in pins power is expected and is caused by the fact that the Variant 3 TIA is the one that is actually powering pins 5-6 through the front panel DB9 cable from varient 3 to varient 2.