Lonworks, short for Local Operating Network, is an open and fully distributed monitoring system that serves as a powerful network platform technology. Known for its unique features, it has become one of the most efficient and widely used fieldbus technologies in industrial control systems. In China, it has been adopted by various national standards. Lonworks utilizes large-scale integrated neuron chips, which combine control and communication functions to create intelligent monitoring nodes. These nodes connect through network transceivers and communication media, forming a fully distributed local operating network known as the LON network.
As a measurement and control network technology, Lonworks is specifically designed for industrial applications, often referred to as fieldbus technology. It enables easy networking of field sensors, actuators, and meters. Unlike traditional LANs, Lonworks is an industrial control network optimized for transmitting small data volumes such as monitoring, status, and control information.
At the core of Lonworks is the Neuron Chip, a 3-bit 8-bit CPU that integrates both communication and control functions. It also supports the Lontalk protocol and 34 common I/O control objects. By adopting the full seven-layer OSI communication model and using object-oriented design, Lonworks introduces the concept of "network variables," simplifying network communication to simple parameter settings. This not only reduces development time but also enhances communication reliability.
**Lonworks Transmission Methods**
- **Single-ended mode**: Typically used with fiber optic cables, copper coaxial cables, or wireless RF transceivers.
- **Differential mode**: Primarily used for connecting twisted pair network transceivers.
**Lonworks Structural Model**
Lonworks follows the full seven-layer communication protocol structure of the OSI model, offering the basic functionalities of a LAN. Its compatibility with heterogeneous networks is superior to other existing fieldbuses, earning it the title of "universal control network." It also provides an interface for LANs, enabling seamless integration between the two.
**Lonworks Hierarchy**
**Lonworks Network Architecture**
The Lonworks Control Network consists of five key components:
1. **Lontalk Protocol**: The communication protocol that defines how devices interact on the network.
2. **Network Transmission Media**: Includes twisted pair, power line, infrared, fiber optics, and coaxial cable.
3. **Network Equipment**: Such as intelligent measurement and control units (nodes), routers, and gateways.
4. **Actuators**: The physical devices that perform actions based on control signals.
5. **Management Software**: Tools like Lontalk open communication protocol that manage and monitor the network.
**Key Components of Lonworks**
- **Router**: Essential for connecting different media-based Lonworks networks. Routers can also act as repeaters, bridges, or routers, helping to manage network traffic and improve performance.
- **Communication Media**: The physical medium through which nodes communicate, including twisted pair, power lines, and fiber optics.
- **Network Management Tools**: Used to assign addresses to nodes and configure network variables. These tools are crucial for maintaining and monitoring the network after deployment.
- **Lontalk Support for Large Networks**:
- **Domain**: A top-level structure ensuring independent communication between domains.
- **Subnet**: Each domain can have up to 255 subnets, logically grouping channels.
- **Node**: Each subnet can support up to 127 nodes, allowing a domain to have a maximum of 255 x 127 = 32,385 nodes.
- Every Neuron chip has a unique 48-bit ID address, ensuring each node is uniquely identifiable on the network.
Lonworks stands out for its flexibility, scalability, and robustness, making it ideal for complex industrial automation and building control systems.
Coin/button Cell-Holders
Antenk battery holders are manufactured from UL rated 94V-O materials. Contacts made of high quality spring steel to assure reliable connections and allow contact resistance. Each contact is clearly marked with its polarity to assure proper battery insertion.
Lightweight and rugged, these PCB coin cell holders offer uniquely designed notched battery slot that assures quick and easy insertion and replacement of all major battery manufacturers' lithium coin cells.
Coin Cell Battery Holders
We have created a wide variety of coin cell battery holders for use in all types of devices, and from handheld medical devices to server motherboards we have solutions for any application. The ever increasing types, sizes, and sheer number of devices which use coin cell battery holders have been keeping us busy, and we have a similarly increasing selection of coin cell battery holder designs. After all, the perfect coin cell battery holder for a handheld medical device is going to be vastly different from the one for a server motherboard.
Lithium Coin/button Cell-Holders Battery Holders
Compact and vertical holders allow battery insertion and replacement from the top, making them ideal for high-density packaging
compact and vertical holders allow battery insertion and replacement from the top, making them ideal for high-density packaging, which maximizes board placement choices. The through-hole mount (THM) versions feature an "air-flow" support-leg design that facilitates soldering and quick battery insertion. The surface-mount (SMT) versions feature a "flow-hole" solder tail design for increased solder joint strength and are available on tape-and-reel.
These holders are manufactured from UL rated 94 V-0 materials. Contacts are made of high-quality spring steel to assure reliable connections and allow contact resistance. Each contact is clearly marked with its polarity to assure proper battery insertion.
Lightweight and rugged, these PCB coin cell holders offer a uniquely designed notched battery slot that assures quick and easy insertion and replacement of all major battery manufacturers' lithium coin cells.
Features and Benefits of Coin/button Cell-Holders Battery Holders
Low profile for high-density packaging
Reliable spring-tension contacts assure low-contact resistance
Retains battery securely to withstand shock and vibration
Rugged construction, light weight
Unique notched battery slot assures quick and easy battery insertion and replacement
Compatible with vacuum and mechanical pick and place systems
Base material UL rated 94 V-0. Impervious to most industrial solvents
THM "air-flow" design pattern enhances air circulation around battery
SMT "flow-hole" solder tail design for increased solder joint strength
Clearly marked polarities to help guard against improper insertion
Unique Coin Cell Battery Holders
Antenk has pioneered a large number of new styles of coin cell battery holders to suit the various needs of the electronics industry. Our Verticals are an excellent way to save space on a crowded board, while our Minis can save almost 3 mm in height above the PCB over traditional coin cell battery holders. Gliders are an excellent upgrade over coin cell retainers, offering more reliable connections while also having simple, tool-less battery replacements. Our newest technology is Snap Dragon, which adds a snapping cover to the traditional style of coin cell battery holders for increased reliability.
Coin Cell Battery Holders by Size of Cell
191 | 335 | A76 | CR1025 | CR1216 | CR1220 | CR1225 | CR1620 | CR1632 | CR2016 | CR2025 | CR2032 | CR2320 | CR2325 | CR2330 | CR2335 | CR2354 | CR2420 | CR2430 | CR2450 | CR2477 | CR3032 | Coin Cell | F3 iButton | F5 iButton | LR1120 | LR44 | ML414 | SR512SW | SR60 | V80H or CP1654 | iButton | BR1025 | BR1216 | BR1220 | BR1225 | BR1620 | BR1632 | BR2016 | BR2025 | BR2032 | BR2320 | BR2325 | BR2330 | BR2335 | BR2420 | BR2430 | BR2450 | BR2477 | BR3032 | Other Sizes
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ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com