[Jordan, gautam]

We did the following:

• Route the fiber from the control room to 1Y2.
• Plug fiber in to FiBox at either end, turned FiBoxes ON.
• Tested the optical connection by driving a 1Vpp 440 Hz sine wave from a function generator - Yehonathan hears it loud and clear in the control room.
• Tested that both CH1 and CH2 work - only CH1 is connected to the speakers in the control room at the moment.
• There is some cross-coupling between the channels - not sure if this is happening in the multi-mode fiber or in the electroncis, but I estimate the isolation to be >30dB.
• Connected CH8 and CH9 of DAC0 in the c1lsc expansion chassis to CH1 and CH2 respectively of the FiBox in 1Y2. 
• Restarted the c1daf model on c1lsc, came up smooth.
• Routed the POY11 error signal through the various matrices in c1daf, and we could 👂 the Y-arm cavity 🔐 😎 
• Channels are muted for now - I'll give this a whirl while doing the PRFPMI locking.