[Nut-upsuser] Contact-closure UPS

[Róbert SZAKSZ]

Hi Charles,

>----- Original Message -----
>From: "Charles Lepple" <clepple at gmail.com>
>To: "Róbert SZAKSZ" <robert at szaksz.eu>
>Cc: nut-upsuser at lists.alioth.debian.org
>Sent: Monday, November 16, 2015 3:20:17 PM
>Subject: Re: [Nut-upsuser] Contact-closure UPS
>
>[please use reply-all when responding - the list does not modify the reply-to header.]
>
>> On Nov 16, 2015, at 8:24 AM, Róbert SZAKSZ <robert at szaksz.eu> wrote:
>> 
>> Hello,
>> 
>> I have one UPS Infosec XP Pro 2500 RM and it works with windows sw RUPS2000.
>> Now I want to install this UPS as virtual server on vmware ESXi vMA - (SUSE SLES 11SP2 linux).
>> On this linux I have NUT 2.6.0 and I stopped now with configuration of genericups driver.
>> 
>> Working cable (direct cable pin1-pin1 ... pin9-pin9) connection on Windows:
>> 
>> PIN   |    PC   |  UPS
>> __________________________________________________________________________________
>> Pin1  |   DCD   |  described as DTR (must keep Hi)
>> Pin2  |   RxD   |  AC Power fail (NO, connected to pin4 UPS ground in case of AC failure)
>
>The genericups driver does not have a setting to use the PC RxD line as a contact-closure input. It seems to be possible if the other software is using it, but genericups can only send a BREAK signal (rather >than receiving it).
>
>> Pin3  |   TxD   |  N/A
>> Pin4  |   DTR   |  UPS ground
>> Pin5  |   GND   |  Battery low (NO, connected to pin4 UPS ground in case of LB)
>> Pin6  |   DSR   |  1. described as UPS RxD and    2. 3 seconds Hi (UPS shutdown)
>> Pin7  |   RTS   |  UPS ground
>> Pin8  |   CTS   |  N/A
>> Pin9  |   RI    |  described as UPS TxD
>> 
>> And the question is, how to configure CP[???], OL[???], LB[???], SD[???]?
>> No one from predefined 21 types worked for me.
>> 
>
>The RUPS 2000 cable type in genericups seems to correspond to a crossed cable as shown in 5.2.1 below:
>
>http://web.archive.org/web/20100106160328/http://ups.miem.edu.ru/ups_faq5.html
>
>You might also be able to connect up the TxD and RxD lines, and use the nutdrv_qx (not available until after v2.6.5), megatec or blazer_ser drivers:
>
>PC	UPS	Description
>==	===	===========
>2	9	TxD
>3	6	RxD
>5	7	Ground
>
>-- 
>Charles Lepple
>clepple at gmail
Thank you for your answer, so I want to try make the "smart" cable, but should I use:
http://www.networkupstools.org/ups-protocols/megatec.html (cable mentioned by you - above 3 wire cable)?
or
http://web.archive.org/web/20100106160328/http://ups.miem.edu.ru/ups_faq5.html (cable 5.4.1)?

and which ist the best driver for it? blazer_ser?

Kind regards,
Robert SZAKSZ.