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Entry  Thu May 17 13:51:35 2018, Jon Richardson, Configuration, Electronics, Documentation & Schematics for AUX-PSL PLL 
    Reply  Fri May 18 14:18:03 2018, gautam, Configuration, Electronics, Basic MEDM Control Screen setup AUX_PLL_CTRL.png
       Reply  Mon May 21 15:34:19 2018, gautam, Configuration, Electronics, Channel hijacking history 
    Reply  Tue May 22 10:14:39 2018, Jon Richardson, Configuration, Electronics, Documentation & Schematics for AUX-PSL PLL Schematic_PLL.pdf
Message ID: 13873     Entry time: Mon May 21 15:34:19 2018     In reply to: 13863
Author: gautam 
Type: Configuration 
Category: Electronics 
Subject: Channel hijacking history 

Since we've been hijacking channels like there is no tomorrow for the AUX-PLL setup, I'm documenting the channel names here. The next time c1psl requires a reboot, I'll rename these channels to something more sensible. To find the channel mapping, Koji suggested I use this. Has worked well for us so far... We've labelled all pairs of wires pulled out of the cross connects and insulation taped the stripped ends, in case we ever need to go back to the original config.

Previously unused C1PSL Channels now used for AUX PLL

Channel name AI/AO Function
C1:PSL-126MOPA_126CURADJ AO Slow temperature control
C1:PSL-FSS_RFADJ AO Servo trigger TTL
C1:PSL-126MOPA_126PWR AI PLL error signal monitor
C1:PSL-126MOPA_DMON AI PLL control signal monitor
C1:PSL-FSS_PHCON AO

To mitigate integrator railing

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