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Message ID: 10954     Entry time: Thu Jan 29 09:50:47 2015
Author: manasa 
Type: Update 
Category: Electronics 
Subject: IOO rack amplifier panel 

The RF amplifier panel on the IOO rack (Attachment 1) will be used to also hold the RF amplfiers for the frequency counters. The amplifiers mounted on it right now are getting +15 (orange wire) and GND (black wire) from the rack power supply (Attachment 2).

Proposed plan to install RF amplifiers:

1. Disconnect the D sub connector that powers the amplifiers and pull out the panel. The rack power supplies will NOT be shut down for this. 

2. Mount the RF amplifiers with bypass capacitors. There will be 4 amplifiers ZFL-500LN mounted on the same panel (2 for each frequency counter).

3. While putting back the panel on the IOO rack, we will need to shut down the +15V and -15V sources to connect the amplifiers to the rack power supply.

I will do this over this weekend so that we dont lose any locking time. If anybody has any concerns, let me know

Attachment 1: panel_front.jpg  2.796 MB  | Hide | Hide all
panel_front.jpg
Attachment 2: panel_back.jpg  857 kB  | Hide | Hide all
panel_back.jpg
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