MDMV-21SSB

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MDMV-21SSB stands for Modular Digital Multiplexer - 21 Supervisory System Bus. It is a high density spread spectrum multiplex bus system used for real-time data exchange between communication controllers or process controls.

MDMV-21SSB offers highly reliable and versatile communication capabilities necessary for modern device control systems. It is based on a synchronous serial data transfer system, such as RS485, using multiple parallel circuits and a modular design to allow communication over long distances and the possibility to accommodate a large number of nodes and data types. It is designed to function well in situations where noise and electrical interference are present.

The MDMV-21SSB bus is comprised of individual nodes that are linked together by a synchronous data link. Data is communicated serially over the data link to a central node, or controller, which then distributes the data as appropriate. The distribution protocol is based on the point-to-point type of data exchange, allowing the transmission and reception of data by two nodes only. This allows the transmission of data over long distances, making it more suitable for applications where there are multiple nodes in the same system.

The nodes in the MDMV-21SSB bus are connected to the controller through a bus interface which allows each node to monitor and control the bus status. Each node can be configured as a transmitter, receiver, or both, depending on the type of data to be exchanged. The controller can also configure the communication between nodes for different data types and speeds. Each node is assigned a unique address which is used for communication.

MDMV-21SSB has a wide range of applications. It is used in process control systems, automation systems, communication systems, and in military and aerospace applications. It is particularly useful in hostile environments, where reliability is paramount.

The principle of operation for the MDMV-21SSB system is based on the point-to-point communication model. In this model, a node, or station, is connected to the network and is able to both send and receive data to and from the other nodes in the system. Data packets are sent and received over the synchronous data link in a specific format which allows for reliable transmission of information regardless of interference. The packet format is defined by the Type 1 packet structure which allows for a maximum packet size of 20 bytes.

The MDMV-21SSB system is highly reliable and can be used in hostile environments. It creates a reliable system that is independent of noise, interference, and power fluctuation. Its flexible configuration makes it an excellent choice for real-time control applications in demanding environments.

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