The UPS Howto

Harvey J. Stein, hjstein@bfr.co.il, Berger Financial Research, Ltd.

1. Introduction

• 1.1 Contributors
• 1.2 Important disclaimer
• 1.3 Other documents

2. Important note on obsolete information

3. Smart and dumb UPSs.

4. Software

5. Do it yourself guide

• 5.1 What you need to do (summary)
• 5.2 How it's supposed to work
• 5.3 How to set things up
• 5.4 User Enhancements

6. Hardware notes

• 6.1 How to make a cable
• 6.2 Reverse-engineering cables and hacking powerd.c
• 6.3 Serial port pin assignments
• 6.4 Ioctl to RS232 correspondence

7. What to do when you're really stuck

8. Info on selected UPSs

• 8.1 General Experiences.
• 8.2 Advice 1200 A
• 8.3 Trust Energy Protector 400/650
• 8.4 Trust UPS 400-A
• 8.5 Sustainer S-40a
• 8.6 Systel
• 8.7 Deltec Power, Fiskars Power Systems and Exide.
• 8.8 Beaver model UB500 UPS
• 8.9 Sendom
• 8.10 Best
• 8.11 GPS1000 from ACCODATA
• 8.12 TrippLite BC750LAN (Standby UPS)
• 8.13 APC

9. How to shutdown other machines on the same UPS