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Entry  Thu Jan 20 04:43:28 2011, kiwamu, Update, Green Locking, status update: PLL connected to ADC 
    Reply  Thu Jan 20 15:15:39 2011, kiwamu, Update, Green Locking, status update: PLL connected to ADC 
Message ID: 4176     Entry time: Thu Jan 20 15:15:39 2011     In reply to: 4174
Author: kiwamu 
Type: Update 
Category: Green Locking 
Subject: status update: PLL connected to ADC 

I realized that the black AA board I mentioned on the last entry has the same range issue as Valera reported before (see #3911). 

Basically our ADC card has +/- 10V input range, but on the other hand the AA board is already limited by approximately +/- 2V.

We have to fix it.

Quote: #4174

  The output signal from the VCO box goes to a black beakout board on 1X2 rack though a BNC cable.  

Then the signal comes out from the back side of the board with DB39 style, so I put a DB39 to SCSI adapter so that we can take it to the IO chasis.

Now the SCSI is connected to ADC_1 (the second ADC card) on the IO chasis at 1X1. 

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