The Telecommunications Industry Association (TIA) has announced that its TR-51 Committee has published the first revision to the TIA-4957 standard and that work has began on a second revision. The updated standard includes several key changes from the previous version, with the goal of improving the connectivity of smart utility networks,
TIA ANSI/TIA PN-4957.000-A defines the physical data link, network and transport communications protocol layers required to support a range of Smart Utility Network (SUN) applications from small home area network deployments through to large-scale advanced metering infrastructure and distribution automation networks.
Flexibility is provided to enable systems to be optimised for particular applications and regulatory domains.
According to Michael J Lynch, chairman of the TR-51 committee, “the applicability of this standard has matured over time in parallel with the ongoing development of the Internet of Things (IoT) and fits well with the IoT concept. Originally, it was thought that this standard would connect with an existing telecommunications network, but now it supports both that option as well as IoT.”
Recognising that advanced connectivity is essential for smart communities, and a key area in connected services is smart utility networks, the revisions ensure that smart utility networks function to the best of their ability. Smart utility networks standards are intended to provide solutions for two-way data transmission between devices and back-office systems of the utility provider, with a focus on improving services and for the benefit of the nation’s smart cities.
The new TIA-4957.000-A standard includes the following:
- Overview and architecture for a field area network
- Layer 1 standard specification for the smart utility network
- Multi-hop delivery specification of a data link sub-layer
- Layer 3 specification for the field area network
- Layer 4 specification for the field area network
- Smart utility network-security
- Layer 2 standard specification for the smart utility network
Looking forward, the TIA TR-51 Committee will make further revisions, including:
- Architecture Overview – Extension on Field Area Networks (4957.000-A)
- Physical Layer Specification – Extension on Field Area Networks (4957.100-B)
- Data Link Layer Specification – Extension on Field Area Network (4957.200-A)
- Multi-hop Sublayer Specification – Extension on Field Area Networks (4957.210-A)
- Network Layer Specification – Extension on Field Area Networks (4957.300-A)
- Transport Layer Specification – Extension on Field Area Networks (4957.400-A)
- Security Specification – Extension on Field Area Networks (4957.500)
The revised version of the TIA-4957 standard is available here.