User's Manual UPS control system
Table Of Contents
- Apcupsd User's Manual
- Release Notes
- How To Use This Manual
- Basic User's Guide
- Planning Your Installation
- Building and Installing apcupsd
- After Installation
- Configuration Examples
- Testing Apcupsd
- Troubleshooting Your Installation
- Monitoring and Tuning your UPS
- Maintaining Your UPS
- Frequently-Asked Questions
- Apcupsd Bugs
- Advanced topics
- Customizing Event Handling
- Master/Slave Configurations
- Controlling Multiple UPSes on one Machine
- Support for SNMP UPSes
- Alternate Ways To Run The Network Information Server
- apcupsd System Logging
- Installation: Windows
- Windows Version of apcupsd
- Installation: Serial-Line UPSes
- Overview of Serial-Interface UPSes
- Connecting a Serial-Line UPS to a USB Port
- Connecting a APC USB UPS to either a PC USB or Serial Port
- Cables
- Smart-Custom Cable for SmartUPSes
- Smart Signalling Cable for BackUPS CS Models
- Voltage-Signalling Cable for "dumb" UPSes
- Other APC Cables that apcupsd Supports
- Voltage Signalling Features Supported by Apcupsd for Various Cables
- Voltage Signalling
- Back-UPS Office 500 signals
- Analyses of APC Cables
- Win32 Implementation Restrictions for Simple UPSes
- Internal Apcupsd Actions for Simple Cables
- RS232 Wiring and Signal Conventions
- Pin Assignment for the Serial Port (RS-232C), 25-pin and 9-pin, Female End
- Ioctl to RS232 Correspondence
- Testing Serial-Line UPSes
- Troubleshooting Serial Line communications
- Recalibrating the UPS Runtime
- DATA Logging
- Technical Reference
- Configuration Directive Reference
- apcupsd Status Logging
- Shutown Sequence and its Discontents
- APC smart protocol
- Apcupsd --- RPM Packaging FAQ
- Credits
- Kernel Config
analysis) indicates that this cable under the right conditions may provide
the Low Battery signal. This is to be confirmed.
APC Part# - 940-0020B
Signal Computer UPS
DB9F DB9M
CTS 8 -------------------- 2 On Battery
DTR 4 -------------------- 1 Kill power
GND 5 ---------------*---- 4 Ground
|
--- *---- 9 Common
DCD 1 ----|///|----------- 5 Low Battery
|\\\|
RTS 7 ----|///| (probably a
--- semi-conductor)
Thanks to Lazar M. Fleysher.
940-0020C Cable Wiring:
This diagram is for informational purposes and may not be complete, we
don’t recommend that use it to build you build one yourself. This cable
can only be used on voltage-signalling UPSes, and provides the On Battery
signal, the Low Battery signal as well as kill UPS power. In apcupsd versions
3.8.2 and prior, please set your UPSCABLE to 940-0020B. In version 3.8.3
and later, you may specify the cable as 940-0020C. Please note that this
diagram may not be accurate.
APC Part# - 940-0020C
Signal Computer UPS
DB9F DB9M
CTS 8 -------------------- 2 On Battery
DTR 4 -------------------- 1 Kill power
GND 5 ---------------*---- 4 Ground
|
*---- 9 Common
RTS 7 -----[ 93.5K ohm ]----- 5 Low Battery
or semi-conductor
144