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Feature #5627

open

Bug #5542: Move hub to datacenter colocation

mechanical assembly of icE1usb, 12V PSU, RS485 into 1U enclosure

Added by laforge 24 days ago. Updated 3 days ago.

Status:
New
Priority:
Normal
Assignee:
Category:
hardware
Target version:
-
Start date:
07/22/2022
Due date:
% Done:

50%


Description

as the equipment needs to go into a rack, let's put all fo this in a 1U enclosure.

As there's space left, it might make sense to also put an APU2 in (as an icE1usb host or whatver). The 12V PSU could be shared.

Enclosure could be https://www.varia-store.com/de/produkt/394440-19-quot-rack-system-konfigurator-f-uuml-r-pc-engines-apu1-2-3-boards-single-slot.html


Checklist

  • icE1usb
  • 12V PSU
  • current limit / fuse for phantom voltage
  • cable/adapter for combining RJ45 from icE1usb with 12V towards GPS02
  • custom face plate to get RJ45 out?
  • do we want something in the PCIe slot?
Actions #1

Updated by laforge 11 days ago

  • % Done changed from 0 to 10

1U enclosure, APU, PSU have arrived meanwhile

Actions #2

Updated by tnt 3 days ago

"The 12V PSU could be shared."

Not sure about that, see other thread. The 12V powering the GPS02 should be floating wrt to PE at the rack side, meaning that APU would need to be floating as well.

Actions #3

Updated by laforge 3 days ago

On Fri, Aug 12, 2022 at 10:36:30AM +0000, tnt wrote:

"The 12V PSU could be shared."

Not sure about that, see other thread. The 12V powering the GPS02 should be floating wrt to PE at the rack side, meaning that APU would need to be floating as well.

Yes, I also realized that. Luckily the Varia-Systems "DualRack" enclosure actually can mount two completely
separate 12V PSU. We'll use one only for the "isolated" side of your RS422 circuit and the GPS02 (floating
with respect to PE at the rack) and the other one for the APU [and hence indirectly the icE1usb 5V] itself,
referenced to PE.

Actions #4

Updated by laforge 3 days ago

  • Checklist item custom face plate to get RJ45 out? added
  • Checklist item do we want something in the PCIe slot? added
  • Checklist item icE1usb set to Done
  • Checklist item 12V PSU set to Done
  • % Done changed from 10 to 50

Just assembled the base 1U "DualRack" enclosure. It now contains 2x PS35 12V PSU (1x APU, 1x for the GPS02), the APU mainboard, 120GB SSD and a fan.

An icE40 is also already present, but not yet mounted/fixed in any way yet.

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