New-Tech Europe Magazine | February 2018

Figure 1: EManager

Figure 2: VManager

IPv6 addressability - Combines 6LoWPAN with IEEE 802.15.4e Comprehensive security management - Allows you to configure NIST-certified AES-128 based security to meet your requirements Flexible configuration - Network parameters can be selected to match specific system requirements (power / latency / bandwidth) Fully tested network stack and manager software - Application programming interfaces are used to communicate with and configuring the product - no user networking code necessary. Network overview A SmartMesh IP ® network consists of a self-forming multi-hop mesh of nodes known as motes, and an Access Point mote that connects the motes to the Network Manager that monitors and manages network performance and security, and acts as a bridge between the host application and the wireless network. Motes are capable

of two way communication and collect and relay data. SmartMesh networks communicate using a Time Slotted Channel Hopping (TSCH) link layer, pioneered by Linear's Dust Networks group. In a TSCH network, all motes are precisely synchronized to within tens of microseconds. Time in the network is organized into timeslots, which enables collision-free packet exchange and per-transmission channel-hopping. In a SmartMesh network, every device has one or more parents (e.g. mote 3 has motes 1 and 2 as parents) that provide redundant paths to overcome communications interruption due to interference, physical obstruction or multi-path fading. If a packet transmission fails on one path, the next re-transmission may try on a different path and different RF channel.

messages (supports bidirectional data). Each mote may have a different data reporting rate and the network manager will automatically coordinate individual pair-wise communications to efficiently route the traffic. Each mote may have a different power supply capability (e.g. line-, battery-, or energy- harvested power). The network manager will load balance traffic accordingly to extend time until the network's first battery replacement. default factory firmware mote in master mode (Figure 3 - on the left) (no external API client required) default factory firmware mote in slave (Figure 3 - on the right) mode attached to an API client such as a microcontroller. SmartMesh IP features Ultra low-power network - The network can run on batteries, energy harvesting, or line power High network reliability - >99.999% network reliability even in harsh RF environments

Kristóf Féja, IoT Applications Engineer, Arrow Electronics

Figure 3: Motes

MC27561-DRAGONFLY

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