I have an APC UPS 620 and a Windows Server 2012 R2 (non virtual) server. The server and the UPS are connected with genuine APC serial signaling cable.

  1. Without installing any software the APC is not recognized as a device in the Device Manager. Is that normal/expected? I've read that USB connected APCs are recognized.
  2. How can I monitor that APC from the server? I recently installed the latest PowerChute Business Edition (v9.2 for 5 node), but I don't see the APC listed either during the installation process. As far as I understand this latest version may not support serial signaling at all?

Some search shows that PowerChute v7.05 supports serial signaling but that version dates back to 2007, so way back before 2012 existed.

What's the best method to monitor my APC UPS in this case?

  • A serial connection in 2016? Good luck finding something that supports it...
    – Massimo
    Commented Jun 4, 2016 at 20:42
  • 1
    The Dell server was bought last year and has serial. I'm fiddling with apcupsd right now.
    – Csaba Toth
    Commented Jun 4, 2016 at 21:10

2 Answers 2


Configured http://www.apcupsd.com/ so far, http://www.apcupsd.com/manual/manual.html#a-simple-configuration-for-a-serial-smartups works

UPSTYPE apcsmart
UPSCLASS standalone
UPSMODE disable

Also possible to add email sending, useful links:

  1. http://www.miqrogroove.com/blog/2011/installing-apcupsd-for-windows/
  2. http://www.packetwatch.net/documents/guides/2010030801.php

Is the APC Serial Cable recognized in the Device Manager? I remember there being a problem with the driver for my system (Windows 10 in that case).

Link to the driver: http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41

The serial cable on my system: Prolific APC USB to Serial

  • How does your cable look like? Does it look like RS 232 physically? Or do you actually use an USB converter?
    – Csaba Toth
    Commented Jun 7, 2016 at 16:52
  • I could get it working with apcupsd (see my answer), without having any device recognized.
    – Csaba Toth
    Commented Jun 7, 2016 at 16:53
  • 1
    It's a proprietary USBtoSerial Cable: APC Serial Cable Commented Jun 8, 2016 at 7:50
  • Good to know, thanks! So with that cable I can use PowerChute too?
    – Csaba Toth
    Commented Jun 8, 2016 at 16:35

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