WiFi and ZigBee ranges are too limiting.
Cellular is too expensive and power-hungry.
And most LPWAN systems aren’t flexible
enough to meet your needs.

You need something more.

Meet Symphony Link

Symphony Link is an end-to-end wireless solution designed specifically for low power, wide-area network (LPWAN) applications. Built from the ground up by Link Labs on the LoRa PHY.

The Symphony Link radio module achieves carrier-grade connectivity, suitable for worldwide sub-GHz deployment. Its range is 20+ times that of WiFi, and it costs pennies on the dollar when compared to cellular.

Many companies offer IoT platforms that connect disparate devices to the cloud—but the Internet of Things requires actual “things,” and making those things talk to each other is hard work. With Symphony Link, we’ve done that hard work for you.

Up to 250,000 endpoints

Securely transmit over a
range of up to 7 miles

Supports radio hardware and compliant MAC architectures in 915 MHz, 868 MHz, and 433 MHz ISM bands, as well as other sub-GHz license-free and licensed spectrum

SYMPHONY LINK
CLOUD SERVER
API

Backhauls data through WiFi, Cellular, or Ethernet using bank grade security or run intelligence at the edge.

Handles routing, manages keys, data persistence, provisioning, and network management.

Interface your real time data via REST subscriptions and push downlink data instantly.

How far could your network reach?

Explore our custom range calculator and see for yourself.

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30 dBm
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Maximum Range

78465
  • Multi-Slope, Two-Ray Ground Reflection Model
  • 6dBi Omni Gain on Basestation Antenna - To assume a worse basestation antenna gain, subtract gain from another term, like fade margin.
  • For WALoP, channel data rates are: 9 kbps @ -120dBm to 150 bps @ -140dBm
  • All transmissions assumed at 900 MHz
  • For structural attenuation values, see: http://fire.nist.gov/bfrlpubs/build97/PDF/b97123.pdf

VIEW ASSUMPTIONS

Features & Benefits Of Symphony Link

SECURITY & ENCRYPTION

Symphony Link ensures that your IoT application is secure right out of the box. It offers government-grade security, including:

  • Real-time Advanced Encryption Standard (AES) key exchange
  • Bank-grade Transport Level Security (TLS) for network traffic
QUALITY OF SERVICE (QOS) TIERS

Symphony Link’s network can be managed to maintain throughput during network congestion and meet a broad range of end-user requirements, including:

  • Reserved time slots for low-latency applications
  • High-duty cycle tiers for high-throughput nodes
  • Store-and-forward mailbox features for energy-constrained nodes

The QoS tiers are adjustable in real time and allow for multiple types of nodes to exist on the same network. They also allow nodes to “change” QoS based on application requirements (such as alarm systems).

Bidirectional Message Acknowledgement

Symphony Link’s adaptive acknowledgement encoder allows for nodes to transmit less, thus saving battery power and increasing system reliability and capacity. Downlink messages are also acknowledged, so receipt is guaranteed.

EXTENSIBLE API
Symphony Link end users have the option of adding functionality directly into the gateway through an API. This allows for systems that receive a message from a local node to immediately process and generate response messages without any internet connection.
DECENTRALIZED ARCHITECTURE
With Symphony Link, gateways perform a large portion of network processing locally, eliminating the need for a single, intensive processing server. This means gateways can continue performing most of their functionality during a network outage or in a disconnected state and maintain a large data buffer to ensure that no data is lost when the backhaul network is back up and running.
REAL-TIME ADAPTIVE RATE
Symphony Link is a synchronous system, meaning the end nodes can determine what data rate to utilize on a frame-by-frame basis. When the link is strong, messages are fast to save power; when the link is weak, messages automatically lengthen to ensure delivery.
INTERFERENCE AVOIDANCE
With the Symphony Link system, up to 48 gateways (and their star networks) can coexist in the 915 MHz ISM band without affecting performance or adding redundant receive channels. This means adding a gateway truly increases capacity, unlike other LPWAN systems. The gateways also run an interference avoidance algorithm that allows them to constantly monitor and avoid RF energy from other systems in the band.
DYNAMIC SCHEDULING
In a Symphony Link system, the gateway is equally suitable for both uplink and download-focused applications. The scheduler decides how much of the available resources to allocate to uplink and downlink in real time, based on the demand and QoS subscriptions.
GATEWAY ROAMING
With Symphony Link, nodes can easily roam from one gateway to another by scanning for availability. As your capacity grows, you can swap out small, single-channel gateways with high-capacity replacements.

NEED MORE INFORMATION ON SYMPHONY LINK?

Download the complete list of
Symphony Link specifications.

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Specifications for Symphony Link

How is Symphony Link used?

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EXAMPLE

Access Control & Door Locking Systems

A large manufacturer needs to accomplish two goals in regard to its physical security:

  1. It needs a card reader system for employees.
  2. It needs a way to safely and quickly secure the facility.

By selecting Symphony Link as the core technology behind its card reader and door lock control system, the manufacturer can accomplish both of its security goals with a number of advantages over WiFi, mesh, or cellular-enabled technologies. The Symphony Link protocol is specifically designed to achieve years of battery life with low latency. In addition, each end node can be connected wirelessly for pennies rather than dollars.

Want to read through more examples of applications that run on Symphony’s low power wireless technology?

DOWNLOAD OUR USE CASE PDF

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