Connecting Network-Based Data Acquisition Nodes to the Network

• Main Author: Hildin, John
• Other Authors: Teletronics Technology Corporation
• Language: en_US
• Published: International Foundation for Telemetering 2008
• Subjects: Network; Data Acquisition; Physical Layer; Ethernet
• Online Access: http://hdl.handle.net/10150/606220; http://arizona.openrepository.com/arizona/handle/10150/606220

ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California === Unlike communications protocols that are bus-based or multi-drop (e.g., CAIS Bus, Fibre Channel, RS-485), Ethernet relies on a point-to-point connection topology. One reason for this approach is to allow network nodes to negotiate their individual mode of communication with the network, i.e., link speed and duplexity. The goals of this paper are twofold. The first goal is to describe the process of link negotiation between nodes. This will include some of the details of how two physical layer devices establish communication. The second goal is to show how networked data acquisition nodes are physically connected within the overall system.