Overview
IEC 62481-10:2017 - "Digital Living Network Alliance (DLNA) home networked device interoperability guidelines - Part 10: Low-power mode" defines guidelines for managing low-power modes for DLNA home networked devices. The standard describes how modular power saving is applied within a physical device, how individual physical network interfaces and components (screens, hard drives, etc.) can support different power states, and how devices remain discoverable and interoperable when parts are powered down. It builds on DLNA architecture and UPnP energy-management concepts to enable coordinated low-power operation across the home network.
Key topics and technical requirements
- Network Interface Mode: Defines modes such as "IP-up", "down but wakeable" (internally or externally), or unwakeable. This is central to maintaining Layer 2/Layer 3 connectivity while other components are powered down.
- UPnP EnergyManagement Service (EMS): A UPnP DCP that exposes information about network interface descriptions and power modes, and supports resource subscription.
- EnergyManagement Control Point: Issues action requests to EMS to query network interface state and to indicate interest in reserving device functionality.
- Device capabilities: Defines roles and behavior for:
- Low-Power Controller (+LPC+) - control point issuing requests,
- Low-Power Endpoint (+LPE+) - device reporting network interface modes and supporting subscriptions,
- Low-Power Proxy (+LPPRX+) - tracks interface availability for other endpoints and reports to controllers.
- WakeOnPattern Signaler: Mechanism to transmit a bit pattern to wake another device’s network interface to "IP-up".
- Interoperability considerations: Low-power features do not change DLNA content-sharing usages but introduce potential latency and require coordination; the standard does not mandate user interface behavior.
Applications and who should use it
IEC 62481-10 is intended for:
- CE and smart-home device manufacturers implementing DLNA/UPnP-enabled devices that require power-saving capabilities.
- Firmware and network-stack developers who manage network interface states and EMS/Control Point interactions.
- System architects and integrators designing energy-efficient home networks where devices must remain reachable.
- Interoperability testers and certification labs validating DLNA low-power behavior.
- Use cases include energy-aware media players, NAS devices, smart displays, set-top boxes, and proxy devices that maintain network presence on behalf of sleeping endpoints.
Related standards
Keywords: IEC 62481-10:2017, DLNA low-power mode, UPnP EnergyManagement Service, Network Interface Mode, Low-Power Controller, Low-Power Endpoint, WakeOnPattern Signaler, home networking interoperability.