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Feature #5624

closed

Bug #5542: Move hub to datacenter colocation

design / prototyping / testing of icE1usb RS485/422 daughterboard

Added by laforge over 1 year ago. Updated over 1 year ago.

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

100%


Description

The idea is to have a board with 3x RS422/485 drivers/receivers.

For the "OCTOI hub" situation, we'd need
  • 1x Rx NMEA
  • 1x Rx 1PPS
  • optionally: 1x Tx NMEA (no use case for it right now)
For the "DUG/DUL GPS source" use case, we'd need
  • 1x Tx NMEA
  • 1x TX 1PPS
  • optionally: 1x Rx NMEA (not 100% certain it's needed, but recommended)

The ISL83485 (switchable direction) I used in the siu-clock-breakout is sadly not available right now, but I'd hope some other driver circuit is.


Files

20220825_214236.jpg View 20220825_214236.jpg 427 KB tnt, 08/25/2022 08:23 PM
icE1usb-rs422.bin icE1usb-rs422.bin 102 KB tnt, 09/05/2022 02:35 PM
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