All protocol information on this site is provided in the hope that it will be useful.
Some are officially provided by the manufacturers, while others are the result of reverse engineering work.
However, UPS hardware is plentiful and varied. Test your software thoroughly, as these documents may not always reflect the reality within your equipment!
APC
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APC’s smart protocol - unofficial decoding work
Belkin
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Belkin’s smart protocol - unofficial decoding work on the Regulator Pro
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Belkin UPS Protocol - protocol specifications
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Belkin Universal UPS - courtesy of Peter Selinger
CyberPower
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https://www.cyberpowersystems.com/products/software/mib-files/
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CyberPower UPS MIB v2.3 (TXT, 330 KB)
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CyberPower UPS MIB v2.9 (TXT, 341 KB)
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CyberPower UPS MIB v2.11 (TXT, 420 KB)
Delta
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Delta UPS v4 SNMP definitions (TXT, 46 KB)
Eaton
Documents in this section are provided courtesy of Eaton.
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UPScode II Concept Description (ODT, 50 KB)
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MGE Office Protection Systems protocol library (serial SHUT, USB and SNMP protocols)
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EATON (prev. Powerware) XCP protocol:
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X-format Communications Protocol (XCP) Specification (PDF, 996 KB)
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XCP Alarm Map (PDF, 54 KB)
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XCP Meter Map (PDF, 21 KB)
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EATON SNMP Management Information Base:
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EATON general SNMP definitions (TXT, 6.7 KB)
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EATON PowerMIB (XUPS-MIB) (TXT, 71 KB)
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EATON ePDU G2/G3 (EPDU-MIB) (TXT, 83 KB)
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EATON ATS (ATS-MIB) (TXT, 19 KB)
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The MIB module for Eaton ATS (Automatic Transfer Switch) (TXT, 23 KB)
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The MIB module for Eaton Environment Monitoring Probes (EMP) (TXT, 9.2 KB)
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The MIB module for "pulizzi" Eaton Monitored ePDUs (Enclosed Power Distribution Units) with blue local display (TXT, 44 KB)
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The MIB module for "pulizzi" Eaton Switched ePDUs (Enclosed Power Distribution Units) (TXT, 114 KB)
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The MIB module for "genesis2" Eaton Monitored ePDUs (Enclosed Power Distribution Units) (TXT, 4.5 KB)
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The MIB module for objects and notifications supported by Eaton’s Toolkit-enabled Power Xpert Gateways (TXT, 18 KB)
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MGE Pulsar, version 1.7 AE (TXT, 91 KB)
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The MIB module for "pulizzi" Eaton Switched ePDUs (Enclosed Power Distribution Units) (TXT, 14 KB)
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The MIB module for Power Distribution Unit by Aphel Ltd. (TXT, 21 KB)
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Best Fortress protocol - for LI 520, 720, 1020, and 1420 models
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SOLA/Best Power protocol (Phoenixtec) - courtesy of Invensys Energy Systems
Legrand
Documents officially provided by Legrand.
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Meta System UPS protocol v1.20b (PDF, 420 KB) — for ECO, HF, ALLY HF, MEGALINE and DHEA series
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Legrand (prev. Meta System) UPS protocol v1.21 (PDF, 264 KB) — for MEGALINE, WHAD, DHEA and ALLY HF series
MicroDowell
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MicroDowell UPS Serial Protocol v3.3.1 (PDF, 225KB)
MGE
Documents in this section are provided courtesy of MGE Office Protection Systems, and formerly MGE UPS SYSTEMS.
These have been mirrored from their their web server.
The Utalk (legacy ASCII protocol) documents only applies to MGE UPS SYSTEMS.
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MGE UPS SYSTEMS SNMP MIBS descriptions (PDF, 78 KB)
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MGE USB Devices Draft AA - official MGE HID UPS data (PDF, 310 KB)
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Simplified SHUT protocol (PDF, 63 KB)
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U-Talk protocol general specifications (PDF, 104 KB)
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U-Talk command set specifications (PDF, 288 KB)
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U-Talk basic command set for UPS single monitoring communication (PDF, 7 KB)
ONEAC
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ONEAC serial information - protocol specification
Opti-UPS
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Opti-UPS protocol - more guesswork
Powercom
All these document are officially provided by Powercom
PowerKinetics
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PowerKinetics MiniCOL protocol - courtesy of PowerKinetics technical support
Riello
All these document are officially provided by Riello
Standard protocols
SEC
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SEC protocol - superset of the US9003, below
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SEC UPS Standard Protocol - protocol specification
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SEC Standard UPS Communication interface - details of SEC communication interface
SNMP
Documents in this section are provided courtesy of various manufacturers.
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IETF Management Information Base:
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UPS MIB (RFC 1628) (TXT, 64 KB)
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fixed UPS MIB (RFC 1628) (TXT, 45 KB)
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APC Management Information Base:
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UPS MIB (PowerNet) (TXT, 484 KB)
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MIB description (PDF, 998 KB)
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Delta Management Information Base:
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Delta UPS v4 SNMP definitions (TXT, 46 KB)
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MGE Management Information Base:
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UPS MIB (MGE-MIB) (TXT, 76 KB)
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MIB description (PDF, 78 KB)
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EATON Management Information Base:
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EATON general SNMP definitions (TXT, 6.7 KB)
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EATON PowerMIB (XUPS-MIB) (TXT, 71 KB
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EATON ePDU G2/G3 (EPDU-MIB) (TXT, 79 KB)
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EATON ATS (ATS-MIB) (TXT, 19 KB)
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HP/Compaq Management Information Base:
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HP/Compaq Power MIB (TXT, 68 KB)
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HP/Compaq UPS MIB (TXT, 24 KB)
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Offsite links
USB/HID Power Devices Class
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Power Device Class Document 1.0 library page
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Currently published revision of USB Usage Tables for HID Power Devices (offsite PDF, 981 KB)
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Various
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Megatec UPS Protocol
Voltronic Power
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Voltronic Power UPS Protocol - unofficial decoding work
