January 15, 201115 yr Hi all, I have an APC Smart UPS SC 1500VA that connects via serial cable. I had a F-F serial cable and used a gender bender on the UPS as I had those spare but I'm getting this error in the syslog: Jan 15 14:02:55 Tower apcupsd[2370]: apcupsd FATAL ERROR in smartsetup.c at line 171 PANIC! Cannot communicate with UPS via serial port. Please make sure the port specified on the DEVICE directive is correct, and that your cable specification on the UPSCABLE directive is correct. (Errors)Jan 15 14:02:55 Tower apcupsd[2370]: apcupsd error shutdown completed (Errors) I'm assuming at this stage that the cable is not compatable. My questions is are the APC UPS smart cables different to a standard serial cable? Thanks Josh
January 15, 201115 yr Smart-UPS need a "smart" signaling serial cable. You have two options (these are labelled on the cable itself, on one of the connectors): 940-0024 940-1524 Any ol' serial cable will most likely not work as per APC documentation (and my own experience).
January 15, 201115 yr Author Thanks for that. I found that out after more googling. i need the 940-0024 for smart signalling. Does anyone know if they are difficult to make as they can be a bit hard to get here. Thanks Josh
January 15, 201115 yr Thanks for that. I found that out after more googling. i need the 940-0024 for smart signalling. Does anyone know if they are difficult to make as they can be a bit hard to get here. Thanks Josh Easy... I posted a few days ago where to find the pinout. Search for "APC pinout" on the forum and you will find it.
January 15, 201115 yr Author Thanks Joe, Off to burn my fingers with the soldering iron. http://www.everythingtech.net/2009/04/apc-smartups-serial-cable-pinout/
January 17, 201115 yr Author Another Website that has a few more pinouts for the usb cables and RJ45 cables I think if anyone else is interested: http://pinouts.ru/DevicesCables Josh
January 17, 201115 yr Author Ok The first pinout I tried failed. http://www.everythingtech.net/2009/04/apc-smartups-serial-cable-pinout/ This one seems to work: http://pinouts.ru/DevicesCables Does this in the syslog mean it is up? I have it set to shutdown 20sec after poweroff to check and it seemed to work and the ups shutdown also. The russian site cable pinout says that the db9 shells are connected. Mine weren't but would that be an issue? Jan 17 20:53:39 Tower apcupsd[6019]: apcupsd 3.14.3 (20 January 2008) slackware startup succeeded Jan 17 20:53:41 Tower apcupsd[6019]: NIS server startup succeeded Thanks Josh
January 17, 201115 yr Ok The first pinout I tried failed. http://www.everythingtech.net/2009/04/apc-smartups-serial-cable-pinout/ This one seems to work: http://pinouts.ru/DevicesCables Does this in the syslog mean it is up? I have it set to shutdown 20sec after poweroff to check and it seemed to work and the ups shutdown also. The russian site cable pinout says that the db9 shells are connected. Mine weren't but would that be an issue? Jan 17 20:53:39 Tower apcupsd[6019]: apcupsd 3.14.3 (20 January 2008) slackware startup succeeded Jan 17 20:53:41 Tower apcupsd[6019]: NIS server startup succeeded Thanks Josh Don't forget, you also need to install the "clean powerdown" package, ad then set both it and the apcupsd package to re-install on re-boot. You gave the main URL for the russian pinout site, which specific pinout did you use? the shells may be used for a common ground between the UPS and the server.
January 17, 201115 yr Author Thanks Joe. I do have both set to re-install. I'll try and short the db9 shells some how. I used the apc smart cable pinout. I bit different to the one you had but it seems to work. Josh
January 17, 201115 yr Thanks Joe. I do have both set to re-install. I'll try and short the db9 shells some how. I used the apc smart cable pinout. I bit different to the one you had but it seems to work. Josh It already has the grounds connected. Don't bother with the shells.
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