ECR: Acquisition of green arm transmitted signals in ASC front-end

Document #:

LIGO-E1400047-v1

Document type:

E - Engineering documents

Abstract:

The arm initial alignment (dither alignment) code needs the green arm transmitted signals to be available in the ASC front-end. Those signals are currently only available in Beckhoff corner system. A DB9 cable and 4 ADC channels are required to make the signals available

Files in Document:

• pdf (ECR_ALS2ASC.pdf, file is not accessible)

Other Files:

• word (ECR_ALS2ASC.docm, file is not accessible)

Topics:

• Sensing and Control

Authors:

• Stefan Ballmer
• Daniel Sigg

Keywords:

ASC ALS IAL

Notes and Changes:

2/5/2014 approved by Dennis Coyne & Peter Fritschel
See Integration Issues & ECR Tracker #652:
https://services.ligo-wa.caltech.edu/integrationissues/show_bug.cgi?id=652

Referenced by:

• LIGO-E1400312: Electronics and Optics Change Request from the HIFO-XY Test