So, the hardware way seems too difficult.
I see the raspberry documentation in order to understand if its possible replicate an USB signal to GPIO. So, with a TTL-USB cable I send the signal to the NVR. I hope this is possible! Da: Charles Lepple [mailto:[email protected]] Inviato: mercoledì 21 gennaio 2015 13:41 A: Maurizio Iacaruso Cc: NUT List Oggetto: Re: [Nut-upsuser] R: NUT and relay on USB On Jan 21, 2015, at 3:41 AM, Maurizio Iacaruso <[email protected] <mailto:[email protected]> > wrote: The device is this <http://www.dlink.com/it/it/business-solutions/network-storage/network-video -recorders/dnr-322l-cloud-network-video-recorder> http://www.dlink.com/it/it/business-solutions/network-storage/network-video- recorders/dnr-322l-cloud-network-video-recorder , a NVR with USB port for monitoring UPS. It doesnt support monitoring by LAN. So, my aim is to replicate the state of the UPS, in the sense that the information are sent to raspberry (for NUT) AND to NVR, so it may shutdown properly. It is not a simple matter to replicate the UPS state, in that sense. In general, UPS monitoring ports cannot be "shared" by two devices (although some high-end UPSes have more than one serial port for that purpose). This is why NUT has 'upsd'. In the following diagram, "communication" is the USB link between the UPS and the Raspberry Pi (or the NVR). Either the Raspberry Pi has to share the UPS status through something like upsd (or something similar, like apcupsd's NIS master mode), or the NVR has to send the shutdown signal to the Raspberry Pi. http://www.networkupstools.org/docs/user-manual.chunked/ar01s03.html#_advanc ed_configuration -- Charles Lepple clepple@gmail
_______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsuser
