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tnt

  • Registered on: 02/07/2016
  • Last connection: 07/13/2018

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06/13/2018

02:38 PM Misc Hardware Projects Feature #3326: Build a batch of Openvizsla USB LS/FS/HS protocol tracers
Attached the BOM. Generated directly from the 'Altium output script' in the repo.

06/09/2018

09:25 AM E1/T1 Hardware Interface Support #3317 (Resolved): Do we still have MAX5215 and/or MAX6163 at sysmocom?
Got the parts, tx !

06/07/2018

04:37 PM Misc Hardware Projects Feature #3314: design simple SFP experimentation board with LVDS transceiver
Huh ... don't you have TX/RX swapped on the SFP there ?!?
RD pins are the SFP receiver pins i.e. they are outputs....

06/06/2018

06:41 AM Misc Hardware Projects Feature #3314: design simple SFP experimentation board with LVDS transceiver
Does it have to be a separate board ?
I would think some simple 0R links to switch between external LVDS lines or ...

06/05/2018

01:09 PM E1/T1 Hardware Interface Support #3317: Do we still have MAX5215 and/or MAX6163 at sysmocom?
That would be a bit much. I just want to compare if tuning with such a precision setup makes a lot of difference for ...
11:33 AM Misc Hardware Projects Feature #3313: design simple SFP experimentation board
Added eagle SFP cage and connector. Could use a double check of course :p
10:07 AM Misc Hardware Projects Feature #3313: design simple SFP experimentation board
I just did a footprint for SFP cage and connectors referenced above. I'll upload it this afternoon (couple of tweaks ...

05/17/2018

08:59 AM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
I'm not sure how "bad" it is. But it's more in relation with what the gain of using a precision voltage reference rat...

05/16/2018

08:48 PM E1/T1 Hardware Interface Feature #3272: next-generation osmo-e1-xcvr board
Precision voltage reference is only required if you want to 'save' a calibration value. When locked to GPS, then it d...

05/15/2018

08:45 PM E1/T1 Hardware Interface Bug #3269: osmo-e1-xcvr has magnetics not placed the right way
I don't think that's necessary.
(1) it might just work since the pulse are just attenuated by 1/4 and for short di...

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