Importance

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Abstract

A portable encoded information reading (EIR) terminal for incorporation in a data collection system can comprise a terminal module communicatively coupled to a wireless interface module via a wired interface. The terminal module can include a central processing unit (CPU), a memory, and an encoded information reading (EIR) device. The wireless interface module can include a microcontroller, a memory, and at least one wireless communication interface. The wireless interface module can establish one or more wireless links with one or more peer EIR terminals, to join a wireless network which is collectively formed by the peer EIR terminals. The wireless interface module can receive or transmit beacons containing at least an identifier of a path selection protocol which is used for unicast, multicast and broadcast frame transmission within the wireless network. The wireless interface module, responsive to receiving a MAC frame from the terminal module, can forward the MAC frame, according to the path selection protocol, to a peer EIR terminal or to a portal which is capable of routing MAC frames between the wireless network and one or more OSI layer 2 networks.

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First Claim