[Halld-jlab] Electronics Power Shut Down - 2 Weeks Duration

[Fernando J Barbosa]

Hello everyone,

Conditions in the hall have stabilized and the network updates have been 
performed.

Each rack may have up to three AC power sources: UPS (blue outlet), 
110VAC strip and 208VAC (orange outlets). During the power outage 
period, the 110VAC strips were turned off and these power all of the 
network equipment in a rack. Chris and Nick will turn the strips back on 
this morning. Feel free to turn the power on on crates and chassis as 
needed.

REMINDER: BCAL, CDC and FDC - Before turning on the power (LV, HV, Bias) 
to the frontend electronics, please verify that the cooling systems are 
operational and at nominal conditions.

Best regards,
Fernando


On 6/11/2015 9:54 AM, Fernando J Barbosa wrote:
> Hello everyone,
>
> In preparation for the power outage period, all the electronics on the 
> racks in the hall and the tagger will be turned off today, with the 
> exception of those already on UPS power. Conditions permitting, all 
> the electronics will be powered up on Monday, 6/29. This will allow 
> the hall and tagger environments to stabilize at nominal operational 
> conditions (temperature, humidity) following the power outage.
>
> Electronics off period: 6/11/2015 - 6/29/2015
>
> Subsystem owners should ensure that all the other powered equipment is 
> either off or on UPS power, i.e. cooling, gas, etc. As indicated by 
> Tom, lights will be on backup power for most of the period. Also, 
> coordinate any access to the hall or the tagger buildings during this 
> period with Tom.
>
> Best regards,
> Fernando
>
>
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> Halld-jlab at jlab.org
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