[evlatests] Prototype correlator Installation Plan

[Brent Carlson]

Sigh, I just looked at Figure 3-1 of the correlator prototype test plan 
and it calls for 170-264 VAC input to the -48 VDC power supply.

Brent

Jim Jackson wrote:

> Hopefully, this suffices for an initial prototype correlator 
> installation plan. We'll fill in the details as we get closer to 
> actually having a prototype correlator.
>
> Cheers,
> Jim
>
>
> The current plans for the installation of the prototype correlator are 
> as follows:
>
> 1. It will be installed in the new shielded correlator room. Power, 
> cooling, networking and other infrastructure are expected to be 
> available in this room well in advance of the prototype correlator 
> arrival sometime next year.
>
> 2. It will use an integral AC line derived -48VDC power supply. It 
> will not rely on the -48VDC power/battery plant being purchased for 
> the WIDAR correlator.
>
> 3. Fiber optic splitters will be used on the data transmission fibers 
> to simultaneously drive separate deformatters located in the prototype 
> correlator and the VLA correlator room. This will allow the EVLA 
> antennas to remain in use with the existing VLA system regardless of 
> the operational status of the prototype correlator. There is more than 
> sufficient overhead available from the EDFA's to make up for the loss 
> of this splitter. We will have to decide on the location of the 
> splitters and EDFA chassis (if required). There will be extra 
> deformatters available for this use.
>
> 4. Timing and clock signals will be provided by the coax and fiber 
> being permanently installed for this purpose.
>
> 5. This does not cover back-end computers for the prototype correlator 
> though I would assume we want those located in the new correlator room 
> as well. Any thoughts on this?
>
>

-- 
Brent R. Carlson
Brent.Carlson at nrc-cnrc.gc.ca
Tel/Tél: (250) 493-2277 (ext. 346) |  Fax: (250) 493-7767
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