>On Nov 20, 2015, at 12:17 PM, R?bert SZAKSZ <robert at szaksz.eu> wrote: >> >> No progress has been made: >> >> cable is UPS - PC >> 6 - 3 >> 7 - 5 >> 9 - 2 >> > >Maybe pins 4 and 7 (ground) both need to be connected on the UPS side?I connected both to pin 5>Unfortunately, I don't think there is a safe way (in software) to determine whether the UPS is not receiving the signal, or whether the PC is not receiving the reply. > >If you have a multimeter, you could check pin 9 on the UPS relative to pin 4/7 to see if it is being driven negative.I mesured it and on DC and it shows 0 V (zero V). May be the information (pls. see attachment) that UPS PIN1 should bee keept HI is mandatory. Should I connect it to PC PIN4 DTR? OR I need to follow with contact closure cable? Best regards, Robert SZAKSZ. -------------- next part -------------- A non-text attachment was scrubbed... Name: Infosec_UPS_connector.PNG Type: image/png Size: 51305 bytes Desc: not available URL: <http://lists.alioth.debian.org/pipermail/nut-upsuser/attachments/20151121/3c6c2f60/attachment-0001.png>
> On Nov 21, 2015, at 2:43 AM, R?bert SZAKSZ <robert at szaksz.eu> wrote: > > I mesured it and on DC and it shows 0 V (zero V). > May be the information (pls. see attachment) that UPS PIN1 should bee keept HI is mandatory. Should I connect it to PC PIN4 DTR?Certainly possible. blazer_ser and nutdrv_qx should set DTR high and RTS low by default, but that can be adjusted.> OR > > I need to follow with contact closure cable?If the UPS is capable of the smart protocol, I still think that is worth trying first. But it's up to you. -- Charles Lepple clepple at gmail
>> On Nov 21, 2015, at 2:43 AM, R?bert SZAKSZ <robert at szaksz.eu> wrote: >> >> I mesured it and on DC and it shows 0 V (zero V). >> May be the information (pls. see attachment) that UPS PIN1 should bee keept HI is mandatory. Should I connect it to PC PIN4 DTR? > >Certainly possible. blazer_ser and nutdrv_qx should set DTR high and RTS low by default, but that can be adjusted.>I will try to make both cables, but UPS PIN9 (TX) doesn't answer it seems like no power on it.>> >> OR >> >> I need to follow with contact closure cable? > >If the UPS is capable of the smart protocol, I still think that is worth trying first. But it's up to you.I am not 100% sure that smart protocol is capable, because the only one place where it is mentioned is the picture I sended you. Question for contact cable http://web.archive.org/web/20100106160328/http://ups.miem.edu.ru/ups_faq5.html type 5.2.1 is to set CP[RTS] OL[CTS] LB[DCD] SD[DTR] is this correct? Best regards, Robert SZAKSZ.