Usb Hub Wiring Diagram - How To Use This Manual. This is the manual for apcupsd, a daemon for communicating with UPSes (Uninterruptible Power Supplies) made by American Power Conversion Corporation (APC).. Here's an index of Tom's articles in Microprocessor Report. All articles are online in HTML and PDF formats for paid subscribers. (A few articles have free links.) Microprocessor Report articles are also available in print issues. For more information, visit the MPR website.. Setting up a Raspberry Pi running Raspbian Stretch or Jessie. KI6ZHD dranch at trinityos.com 11/16/18.0 This document is intended for new users to both Raspberry Pi SBC computers and the Raspbian based Linux operating system..