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This document is also available from our website at www.gov.uk/decc.
All references in this document to the second version of the Smart Metering Equipment Technical Specifications (SMETS) are to Version 1.581. All references to the Communications Hub Technical Specifications (CHTS) are to Version 1.46.
Both these documents can be obtained here: https://www.gov.uk/government/consultations/smart-metering-equipment-technical-specifications-second-version
DLMS Green and Blue Books
This document aligns with the published versions of the Green Book (DLMS UA 1000-2 Ed. 8.0) and Blue Book (DLMS UA 1000-1 Ed. 12.0) . These documents can be obtained from the DLMS User Association: http://www.dlms.com.
All references in this document to the ZigBee Smart Energy (ZSE) Profile Specification relate to 1.2a v0.9 (reference 14-0256 Rev 04: http://zigbee.org/About/GBCSPartner.aspx). The following documents are also referenced and are available from the same link:
ZigBee OTA Upgrade Cluster Specification, reference 09-5264 Rev 23;
ZigBee Specification – 05-3474 Rev 20; and
ZigBee Pro PICS and Stack Profiles – 08-0006 Rev 05.
Please note that ZigBee Smart Energy Profile 1.2a v0.9 may be subject to minor amendment in accordance with the ZigBee development process prior to its publication as a standard (ZigBee Smart Energy Profile 1.2a v1.0).