Network UPS Tools User Manual
Network UPS Tools User Manual
Network UPS Tools User Manual
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<strong>Network</strong> <strong>UPS</strong> <strong>Tools</strong> <strong>User</strong> <strong>Manual</strong> 8 / 84<br />
Server version<br />
Client version 1.0 1.2 1.4 2.0+<br />
1.0 yes yes yes no<br />
1.2 yes yes yes no<br />
1.4 yes yes yes yes<br />
2.0+ no no yes yes<br />
Version 2.0, and more recent, do not contain backwards compatibility for the old protocol and variable/command names. As a<br />
result, 2.0 clients can’t talk to anything older than a 1.4 server. If you ask a 2.0 client to fetch "STATUS", it will fail. You’ll have<br />
to ask for "ups.status" instead.<br />
Authors of separate monitoring programs should have used the 1.4 series to write support for the new variables and command<br />
names. Client software can easily support both versions as long as they like. If upsd returns ERR UNKNOWN-COMMAND to a<br />
GET request, you need to use REQ.<br />
2.15 Support / Help / etc.<br />
If you are in need of help, refer to the Support instructions in the user manual.<br />
2.16 Hacking / Development Info<br />
Additional documentation can be found in:<br />
• the Developer Guide,<br />
• the Packager Guide.<br />
2.17 Acknowledgements / Contributions<br />
The many people who have participated in creating and improving NUT are listed in the user manual acknowledgements appendix.<br />
3 Features<br />
NUT provides many features, and is always improving. Thus this list may lag behind the current code.<br />
Features frequently appear during the development cycles, so be sure to look at the release notes and change logs to see the latest<br />
additions.<br />
3.1 Multiple manufacturer and device support<br />
• Monitors many <strong>UPS</strong>, PDU and SCD models from more than 100 manufacturers with a unified interface (Hardware Compatibility<br />
List).<br />
• Various communication types are supported with the same common interface:<br />
– serial,<br />
– USB,<br />
– network (SNMP, Eaton / MGE XML/HTTP).