Yuefan and Yuhang

Today we finished all the cabling works for the AA telescope.

On the top left of the first picture shows the DGS board, 16 channels on the bottom are connected to the I and Q DC output of the demodulation board for both quadrants. On the top, the middle 8 channels are the DC output from the QPDio-base for two quadrants.

In the right middle of this picture, there are the two boards to control the galvo, four inputs on both boards are also from the QPDio-base DC output. and the x and y output will be connected to the galvo.

Second picture shows the demodulation board for two quadrants, one the left is the 16 demodulation signal mentioned before, and on the right, there are 8 channels which connect to the RF output of the quadrants. We didn't connect the LO yet.

Third picture shows the QPDio-base, the left four channels are the DC output, and the right two cables will be connected to the quadrant.

In the fourth picture,  these are the cables that will connect the galvo motors and the RF output of the quadrants. 

We put lables for all the cables we connected today to avoid any confusion in the future. We still need to organize a bit the cables, and we will also check if all of them are working tomorrow.

We also prepared the rest lens and mirrors for the telescope, if the green is availabe tomorrow we can continue the installation.