Reference Articles 301 - 400 of 427
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High-speed Tire Inspection Through the use of Ethernet
From: LMI Technologies Inc.Description: Tire manufacturers require very fast throughput and high-resolution inspection data in order to meet production and quality requirements. ...
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Weighing the Costs of DeviceNet vs. Standard Wiring for Distributed Inputs/Outputs
From: Omron Electronics LLCDescription: Here's the challenge Omron's Networked Systems Product Manager Dave Kaley proposed: Where's there cost savings at installation and over the long run based on choosing distributed I/O handled by ...
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Auxiliary Electrical System Control via High-Speed Communications Networks
From: Burns & McDonnellDescription: The desire to reduce installation costs and improve operator information and control is rapidly advancing the use of communication networks in power plant's auxiliary electrical systems. Recent ...
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Establishing Risk-Based Security Criteria for Structural Design
From: Burns & McDonnellDescription: The structural provisions of current building codes are intended to provide life safety to occupants under usual and occasional hazards such as those represented by dead, live, flood, wind, snow, and ...
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N-TRON 500 Series Switches in EtherNet I/P Environments (.pdf)
From: N-TronDescription: This application note will explain how switches utilizing IGMP snooping can significantly reduce traffic from bandwidth-intensive IP multicast traffic generated by Rockwell Automation products. ...
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Network Power Protection (.pdf)
Description: Your company, like many others, has a sizable investment in computer networks: hardware, software, and customer-related information. You also have a significant investment in the people and processes ...
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Network Security (.pdf)
Description: In today's world it's impractical-if not impossible-to isolate your network. Networks are interconnected and usually feature a full-time connection to the Internet, which can be a dangerous place. ...
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ATM vs. IP/PPP: Why Frame Is Better Than Cells At The Network Edge
From: Patton Electronics Co.Description: There has been much excitement and talk over the years about the appropriateness of ATM for all manner of telecommunications applications. Many white papers and articles asserted that ATM was the ...
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Builing Integrated Services Intranets
From: Patton Electronics Co.Description: Managers responsible for enterprise networks are facing unprecedented changes in the technology which is available to them. These new technologies offer the opportunity to operate enterprise ...
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Multi-Service Access: Bundling Solutions That Increase Competitiveness and Promote Differentiation
From: Patton Electronics Co.Description: The changes and upheaval in the telecommunications resulting from the Telecommunications Act of 1996 have spawned a need for tighter integration of access, multiplexing and routing functions. These ...
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Patton 2800 Solutions - Corporate Access
From: Patton Electronics Co.Description: The Patton 2800 Remote Access Server can help small corporations consolidate and manage a variety of voice and data access demands. In the Typical Corporate Access Scenario (below), telecommuters are ...
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Patton 2800 Solutions - Enterprise Networking
From: Patton Electronics Co.Description: The Patton 2800 Remote Access Server can help corporations provide cost-effective data access for branch offices, and can connect those offices to the corporate headquarters. In the Enterprise Network ...
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Patton Has The Remotest Idea! Models 360 and 3022 Are Great For Remote Configuration
From: Patton Electronics Co.Description: Patton Electronics has always been the champ when it comes to RS-232 products. And though some fingerwaggers might label RS-232 as "obsolete," fascinating applications for Patton RS-232 products just ...
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Providing Integrated Services Access Part 1 - Services
From: Patton Electronics Co.Description: Service providers are finding it increasingly difficult to compete in the telecommunications market by differentiating their offering on price alone. A combination of regulatory and competitive ...
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Providing Integrated Services Access: Part 2 - Management
From: Patton Electronics Co.Description: The capital cost of introducing any new service is often the figure that attracts attention. However, with multi-service provision, the initial equipment costs can be exceeded by the operational costs ...
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Solving a Management Problem: Patton's Monitoring & Control System An Alternative to SNMP
From: Patton Electronics Co.Description: System managers use network management software to monitor, control, and test communication devices. A variety of standardized and proprietary management systems have been deployed. However, Simple ...
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The Access Network - Evolution From Separate Simple Services To A Fully Flexible Environment
From: Patton Electronics Co.Description: The technology which now enables us all to be part of one large global community is impressive. Fibre optic cables cross oceans, networks of satellites link continents and sophisticated management ...
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VoIP in Industrial Networks
From: Patton Electronics Co.Description: For many years, serial interfaces such as current loop, RS-232, and RS-485 have been the preferred methods for industrial communications. Ethernet offers high reliability with the proven ability to ...
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VoIP: Addressing QoS Beyond The Provider Network
From: Patton Electronics Co.Description: Today's Internet does far more then email and file transfers. Initially designed for non-real-time (NRT) data applications, the Internet has matured far beyond these tasks. In addition to web ...
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Case Study: Military Operation of Computers and Signaling Equipment
From: Visicomm IndustriesDescription: Industry: Military Problem: Operating computers and signaling equipment in a 50hz country (Qatar and Iraq) without depending on standby engine generators. Solution: Model 250QDesStorm which is in our ...
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Improving Plant Production with Wireless Condition Monitoring (.pdf)
From: ProSoft Technology, Inc.Description: Mechanical failure of motors, drives and other vital electromechanical equipment are among the most common reasons for production stoppages. Fortunately, recent advancements in vibration monitoring ...
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Using Operator Interfaces to Optimize Performance of Industrial Wireless Networks (.pdf)
From: ProSoft Technology, Inc.Description: The performance of wireless networks can change over time due to increased performance demands, changes in the radio frequency (RF) environment and changes in the physical environment. This article ...
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Wireless Security on the Plant Floor (.pdf)
From: ProSoft Technology, Inc.Description: Wireless networks can consist of many radio types based on the radio frequency and the modulation methods. Radios may be required to obtain a license to operate in an area or be part of the FCC ...
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How Safe Is Remote Access To Omron PLCs Via The Internet?
From: Omron Electronics LLCDescription: With the advent of the Internet, manufacturing firms and OEMs have gained access to a new method of monitoring, troubleshooting, and programming automation devices remotely. While this can provide ...
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Marshall's New Resources: Work Measurement in Retail
Description: In a business as diverse as a department stores, every second matters. In order to save time and streamline processes, Marshall Field?s, a division of Target Corp., wanted to automate one of its ...
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The Evolution of Eurocard based Architecture from VMEbus to AdvancedTCA and Beyond
From: ELMA Electronic Inc.Description: 19" Technology and associated Eurocard mechanics still play a significant role in the Electronic packaging industry. Their continued success can in large part be attributed to the steady and ...
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Innovations Through Evolutionary Concepts And Opportunities
From: Sunstone CircuitsDescription: If one looks at the development of internet commerce in terms of generational growth, from the initial World Wide Web to the current 2.0, one sees that successful Internet-based companies not only are ...
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PTC Thermistor Application in Automated Reading Electronic Meter
Description: Automatic meter reading is becoming increasingly popular in electronic power meters, This technology provides a communications port to the power meter, allowing it to be read electronically in a ...
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SeaLATCH™ Locking USB Cable Solution
From: Sealevel Systems, Inc.Description: The Problem: The USB Interface Was Not Designed for Industrial Environments The USB interface was originally designed to give home computer users a universal method for connecting peripherals. Over ...
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Communications Interfaces Explained
Description: Ethernet Communications Interface (Also known as IEEE 802.3 as it was standardized by the Institute for Electrical and Electronics Engineers) Definition: Ethernet is a frame-based computer network ...
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Etherbus Industrial Fieldbus Solutions with PoE
From: SixnetDescription: A fieldbus combines power and communications into a single cable. It simplifies system wiring, reduces maintenance time, and reduces costs in many ways. Fieldbus products have been around for a long ...
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Sending a Numeric Message to a Cell Phone with SIXNET Modems
From: SixnetDescription: The information in this document was created by SIXNET. It details the configuration for dialing and sending a numeric message to a cell phone using the "Self-Dialing" feature in the VT-MODEM-2. Upon ...
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Boom in Broadband Boosts Advanced Compliance Solutions Testing 60 Percent -- ACS Expands Staff, Adds New Building
Description: "We help broadband internet hardware companies such as Scientific Atlanta (a Cisco company), Arris Group, Wave 7 Optics, and Intel ensure their broadband products are compliant for the market in which ...
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Amplifier Testing With The 37300C VNA
From: Anritsu CompanyDescription: Vector Network Analyzers (VNA) are designed to measure S-parameters of RF and Microwave devices and circuits. S-parameters are by definition ratios and as such the actual test power utilized is not ...
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Arbitrary Impedance
From: Anritsu CompanyDescription: S-parameters are dependent on the impedance to which they are referenced and many measurements are now performed in a non-50 ohm world. Matching and other tasks are now often referenced to something ...
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Embedding/De-embedding
From: Anritsu CompanyDescription: A frequent need in S-parameter measurements is to remove the effects of a fixture or virtually add in the effects of other networks (e.g., matching). Embedding and de-embedding are tools for virtually ...
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Insertion Loss Measurement Methods
From: Anritsu CompanyDescription: Transmission feed line system performance plays an important role in wireless network coverage. Insertion loss measurement is one of the critical measurements used to analyze transmission feed line ...
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Intermodulation Distortion (IMD) Measurements Using the 37300 Series VNA
From: Anritsu CompanyDescription: Intermodulation distortion (IMD) has become increasingly important in microwave and RF amplifier design. As modulation techniques become more sophisticated, greater performance is required from ...
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Measuring Frequency Conversion Devices
From: Anritsu CompanyDescription: This application note discusses frequency conversion device measurements with the Anritsu 37100A Vector Network Analyzer. The 37200B and 37300A VNAs will also make these measurements, in addition to ...
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Primer on Vector Network Analysis
From: Anritsu CompanyDescription: Anritsu Vector Network Analyzers (VNAs) measure the magnitude and phase characteristics of networks that include passives (e.g., diplexers, cables, filters, antennas, SAW devices, balanced and ...
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Pulsed S-parameter Measurements
From: Anritsu CompanyDescription: Many devices, particularly power devices, were not designed to operate continuously or with CW signals. When devices are being tested on-wafer, this becomes even truer since thermal resistance is ...
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S-parameter Measurements with Multiport Balanced Test Sets
From: Anritsu CompanyDescription: With the increasing proliferation of multiport devices at both RF and microwave frequencies, it is sometimes practical to use a multiport test set connected to a 2 or 4 port Vector Network Analyzer ...
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Techniques for VNA Measurements of Non-insertable Devices
From: Anritsu CompanyDescription: While the simplest coaxial two port device to measure on a vector network analyzer (VNA) would be insertable (i.e., one male and one female connector), these are often in a minority of the devices to ...
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Three and Four Port S-parameter Measurements
From: Anritsu CompanyDescription: Calibrations are the critical first step to multiport vector network analyzer (VNA) measurements and there are many choices. A mixed-mode S-parameter representation for balanced devices is also ...
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Tower Mounted Amplifiers, Diagnostics and Isolation Measurements
From: Anritsu CompanyDescription: The use of Tower Mounted Amplifiers (TMAs) in cellular, PCS, GSM and 3G Base Stations has offered significant improvements to carriers to minimize call drops, loss of communication, and provide a more ...
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Understanding Frequency Accuracy in Crystal Controlled Instruments
From: Anritsu CompanyDescription: Synthesizers, vector network analyzers, frequency counters, spectrum analyzers and many other instruments must accurately create or measure frequency. However, their accuracy is affected by time, ...
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Avaya/Quintum Remote Office Survivability AppNote
Description: These Application Notes describe the procedure for configuring the Quintum Tenor AS VoIP MultiPath Switch as a back-to-back user agent (B2BUA) in support of SIP endpoints and local survivability with ...
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Extending VoIP to Remote Locations: Challenges and Solutions
Description: In the early days of VoIP, the central issue facing the industry was whether voice quality could be effectively maintained using IP as the transport. Technology vendors, service providers and ...
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Life on the Edge
Description: Voice-over-IP (VoIP) offers a wide range of benefits - including cost savings, the convenience of managing one network instead of two, simplified provisioning of services to remote locations, and the ...
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Risk and Rewards of VoIP Implementations
Description: With the rapid changes taking place in communications today, business decision-makers face both compelling opportunities and potentially costly pitfalls. The issue of "convergence" - whereby voice, ...
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SP Solutions: VoIP over Wireless Broadband
Description: Many service providers are pursuing wireless broadband opportunities. Wireless broadband allows these service providers to bypass the local loop and/or reach customers whose physical locations make ...
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Tenors at the Super Bowl - Article from VON Magazine
Description: On Sunday, February 5, the US football world will be tuned in to Super Bowl XL (40). Arguably the highest-profile single sporting event in the US, the National Football League championship game will ...
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VoIP-Enabled Internet Cafe in Iraq Benefits US Military
Description: With the nation's communications infrastructure still largely in disarray and local phone company operations still unable to respond to citizens' needs, Iraqi citizens have found their ability to ...
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Network Security for Device Servers
From: Sena TechnologiesDescription: Device servers deliver the appropriate network connection and physical interface for industrial device applications. Providing this function in a secure fashion is becoming a major concern for ...
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802.11 Basics
From: B&B ElectronicsDescription: Currently, most wireless networks (WLANs) are based on the IEEE 802.11b, 802.11a or 802.11g standards. These standards define how to wirelessly connect computers or devices to a network. Wireless ...
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DSP GMSK Modem for Mobitex and Other Wireless Infrastructures
Description: Mobitex is a packetized wireless 900-MHz wide area network (WAN) that allows mobile/portable subscribers to transfer data, including e-mail, through the growing national and international network ...
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802.11 Basics: Wireless LAN Configurations
From: B&B ElectronicsDescription: Currently, most wireless networks (WLANs) are based on the IEEE 802.11b, 802.11a or 802.11g standards. These standards define how to wirelessly connect computers or devices to a network. Wireless ...
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Automatic Serial Data Collection
From: B&B ElectronicsDescription: As more and more devices come equipped with some type of communication for data collection and monitoring, the amount of data that can be collected by a PC in a system is astounding. A problem arises, ...
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Basics of the RS485 Standard
From: B&B ElectronicsDescription: This information touches on some of the most commonly asked aspects of RS-485 communications. B&B Electronics has a free application note available on RS-422/485 that gives a more complete picture of ...
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Cable Selection for RS422 and RS485 Systems
From: B&B ElectronicsDescription: Selecting data cable for an RS-422 or RS-485 system isn't difficult, but often gets lost in the shuffle of larger system issues. Care should be taken, however, because intermittent problems caused by ...
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COM4 Address Conflicts
From: B&B ElectronicsDescription: As today's PC applications become both more graphic and communications intensive, users are finding that many systems will not work with COM4's address configured as 2E8h. Often the problem is blamed ...
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Create Palm Software to Communicate with Your Serial Devices!
From: B&B ElectronicsDescription: Are you wondering how to write software that will allow you to communicate to serial devices with your Palm? Just download PalmTerm software from the B&B Electronics website for a complete and easy ...
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Ethernet Basics
From: B&B ElectronicsDescription: 10BASE5-Thick Ethernet or Thicknet-is the original Institute of Electronic and Electrical Engineers (IEEE) 802.3 Ethernet. 10BASE2-Thin Ethernet, Thinnet, or Cheapernet-resembles 10BASE5, was ...
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Ethernet Buzzword Guide (.pdf)
From: B&B ElectronicsDescription: Ethernet has a zillion buzzwords and plenty of strange abbreviations, acronyms and "short hand" - for example, "10BASE-T" means 10 megabits per second, baseband, Twisted Pair. This guide is a ...
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Ethernet Moves Out of the Office
From: B&B ElectronicsDescription: An interesting circumstance of events occurred several days back. Sitting at my desk I received an invitation to attend an on-line Webcast presentation. The topic, "Ethernet on the Factory Floor" ...
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FAQs on USB (Universal Serial Bus)
From: B&B ElectronicsDescription: Q: My computer has only a 9 pin serial port but my new device (Printer, Camera, etc.) has only USB Connections. Do you have a converter that can be used to connect them? ...
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Getting From Here to There: Serial Communications Systems
From: B&B ElectronicsDescription: What do you do when you need to make a dedicated low speed data connection between two places? Need to monitor a PLC on the factory floor from an office area, connect a host PC to a timeclock or alarm ...
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Guide to Ethernet Components and Terminology
From: B&B ElectronicsDescription: The power of an Ethernet LAN (Local Area Network) is tremendous when applied to a factory floor or other industrial application. However, to take full advantage of its features, it requires more than ...
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IEEE 802.11 for Industrial Applications
From: B&B ElectronicsDescription: Wireless networking is catching the attention of a lot of people these days. Its impact is growing and spreading out from its early focus on office network applications into a host of other areas. In ...
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Introduction to Industrial Ethernet
From: B&B ElectronicsDescription: When you talk about office and home networking, usually you are talking about Ethernet-based networkscomputers, printers and other devices that contain Ethernet interfaces connected together via ...
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Merging Ethernet and Serial Technology
From: B&B ElectronicsDescription: Emerging Ethernet technology is providing new ways of connecting legacy serial devices to a Local Area Network (LAN) or Wide Area Network (WAN). It does not matter what type of serial interface- ...
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Options for Adding Serial Ports
From: B&B ElectronicsDescription: The serial port is prevalent on PC's as well as scores of industrial, scientific and consumer devices, making it a convenient starting point for communications. Since RS-232 itself is only suited to ...
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Polarities for Differential Pair Signals (RS-422 and RS-485)
From: B&B ElectronicsDescription: B&B Electronics labels the data lines on RS-422 and RS-485 with an "A", for negative or "B" for positive, to indicate the positive and negative relationship between the two data lines. It is important ...
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Port Powered Serial Converter FAQ
From: B&B ElectronicsDescription: These converters steal their power from the connected RS-232 device's output signals. As an example, a PC normally has outputs on the Transmit Data (TD), Request to Send (RTS), and Data Terminal Ready ...
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Power Over Ethernet (PoE)
From: B&B ElectronicsDescription: With the introduction of new Ethernet-enabled devices expanding geometrically, the need to power these devices from standard AC power outlets has become a limiting factor. IP telephones, wireless ...
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Put Serial Ports on Your LAN
From: B&B ElectronicsDescription: Much of todays' high-tech equipment ships with a serial port for programming, monitoring or diagnostics. Put those serial ports to work for you with B&B Electronics' Ethernet to Serial Converters, ...
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RS-485 Tale of Woe
From: B&B ElectronicsDescription: Most are dry as bone dust and full of cheesy promos. Right? You delete them just as soon as they show up in your inbox. Big Yawn. Mine is nothing like that. Sign up today and every few weeks Ill dish ...
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RS485 Application
From: B&B ElectronicsDescription: The EIA/TIA RS-485 communications standard, an upgrade of RS-422, supports 32 devices (driver/receiver pairs) in a party line or multi-drop mode, on a cable of up to 4,000 feet for balanced ...
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RSS422/485 Application Note
From: B&B ElectronicsDescription: You're on your way to becoming an expert RS-422/RS-485 system designer. This extensive technical note describes the main elements of both specifications. ...
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Stepping up to Wireless?
From: B&B ElectronicsDescription: Following the spirit of the free-wheeling and immensely popular eConnections newsletter, B&B Electronics is launching a new companion newsltter devoted to wireless data communications - eWireless ...
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System Design With Port Powered Converters
From: B&B ElectronicsDescription: RS-232 port-powered devices are often preferred over those that require an external power supply for matters of convenience. This is often a good choice, but it is important to be aware of the ...
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The Ten Commandments of Industrial Ethernet: 10 Rules of Smart Networking Practice
From: B&B ElectronicsDescription: The first thing to remember is this: The most probable cause of problems is not the environmental extremist who sees your smokestack on his way to work and decides to launch a virtual terrorist attack ...
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The USB (Universal Serial Bus) Solution
From: B&B ElectronicsDescription: A new computer finally arrives. It has lightning speed, the latest operating system, and a RWCD. Then you notice the manufacturer has shipped the computer without the standard DB-9 serial ports. If a ...
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Tips for Success in Using RS-485 Data Communications
From: B&B ElectronicsDescription: A: RS-485 devices can be connected to a computer and multi-dropped at various locations in a network style configuration. Devices can be up to 4000 feet (1220 meters) feet away before a repeater is ...
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Tips for Using Port Powered Converters
From: B&B ElectronicsDescription: When using or installing any RS-232 port powered device, it is important to keep a few things in mind. The two main items are the Power Available from the RS-232 port and the Power Dissipated by the ...
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Troubleshooting an RS-232 to RS-485 Interface Converter
From: B&B ElectronicsDescription: Have you ever been stuck in the field trying to troubleshoot a faulty system? When communications are suspect you'll want to be armed with information on how to field-test an RS-232 to RS-485 ...
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Troubleshooting Guide for RS485
From: B&B ElectronicsDescription: Step-by-step problem solver to get your RS-485 network up and running again. learn how to avoid pitfalls and troubleshooting by paying attention to some fundamentals. ...
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USB: Adaptable for Industrial Applications
From: B&B ElectronicsDescription: The Universal Serial Bus (USB) provides a high data rate and Hot Swap connection for PCs, providing an easy connection to a wide variety of multimedia and network USB devices. Generally considered to ...
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Ethernet Is Moving Out of the Office Into Harsh Industrial Environments
Description: Ethernet is an ideal medium to transport large volumes of data, at speed, across great distances. Previously, multiple networks carrying specific protocols were installed side by side to carry out ...
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Agriculture Bank of China: VoIP-enabling 50,000 Branches
Description: Agricultural Bank of China (ABC), China's largest commercial bank, and one of the Global 500 with revenues exceeding $250 Billion US, was looking to decrease its long distance phone expenses between ...
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Akridge Real Estate Company Expands PBX Functionality
Description: The John Akridge Companies has more than 10.7 million square feet of upmarket commercial real estate under its management or in construction at 28 sites throughout the Washington DC area (18 are ...
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Boules Trading: UK to India - VoIP over ADSL Implementation
Description: Boules Trading is an established UK specialist textile business that designs and supplies children's clothing to High Street retailers' own brands such as BHS, John Lewis, Laura Ashley, Mothercare and ...
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Call Centers/Telemarketing Case Study
Description: During 2003, Chance Telecom was contacted by its affiliate in South America to present a solution for two of the biggest call center operations in the region. Both call centers were facing the same ...
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China Gov't. Deploys Nationwide VoIP Network
Description: The State Information Center (SIC) is the government body responsible for delivering information technology services throughout the People's Republic of China. The SIC has regional offices and ...
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Christies & Co.: Europe's Largest Real Estate Specialist Deploys Quintum
Description: One of the biggest concerns on the minds of business executives as they contemplate deployment of VoIP is whether end-users will notice any loss of quality or reliability. After all, phone service is ...
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Enterprise Solutions: Banking Application Note
Description: As they've grown over the years, banks and financial services firms have set up large numbers of local and regional offices across the country - and often around the world. These multiple locations ...
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Enterprise Solutions: Extending PBX Functions to Remote Offices AppNote
Description: In response to changing market demands and available resources, companies now maintain larger numbers of comparatively regional offices. In many cases, these offices are no more than a telecommuting ...
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Enterprise Solutions: Hospitality Application Note
Description: For today's traveler, telephone service is as much as part of a hotel stay as a bed and a hot shower. But hotels have traditionally had to charge high rates for phone service because of their own ...
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Enterprise Solutions: Long Distance Consolidation Application Note
Description: Companies with multiple offices typically maintain separate long distance service for each location. This can be costly, since smaller offices can't achieve the volume-based efficiency of a larger ...
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Enterprise Solutions: Multi-Office Communications Application Note
Description: In today's global environment, there are few organizations that don't need to make calls outside their local toll area. At a minimum, calls are required between two or more offices of one company, and ...
