AC-powered RS-232/RS-485 converters RS-485 repeaters are operated on the AC power supply. It converts RS232 signals to those required by RS485 at all standard baud rates from 300 to 115.2K baud. Internal control circuitry automatically controls the flow of data on the RS485 bus. This module transparently repeats RS485 signals at all standard baud rates from 300 to 115.2K baud. Internal control circuitry automatically controls the flow of data on the RS485 bus.

Access controls are the collection of mechanisms that specify what users can do on the system, such as what resources they can access and operations they can perform. They are the countermeasures for ensuring that only users with the proper need and authority can access the system, are allowed to execute programs, and can read, edit, add and delete the appropriate information on that system. It builds on the basic issue addressed in the information security management domain, with an emphasis on various administrative, physical and technical/logical controls. Controls for gaining physical access to an area or to information have been used for centuries. The sender would speak the first secret word and wait for the correct secret word in response. If the response was not part of the shared secret words, access would not be granted. Although some other access control techniques are also used for physical security access to the information system.

Airheater design software is a windows based user friendly design software. Using this package, Engineers can design a wide variety of air heaters for fired boilers and other applications where hot gas source is available. This software is provided with large database of waste heat gases and boiler exhaust gases. Using this software, all types of bare tube, fin tube and gill tube air heaters can be designed. Autodesign feature gives optimum design of air heaters. Users are alerted if any of the important design parameters exceed their limiting values.

Alarm Management Software has been designed as a ready to use standard package to provide alarm display information in conjunction. It is a mechanism for recapturing lost production and increasing capacity. Its core tenet is improving plant condition information and resources available to operations to better empower them to maintain normal state.

Alarm management system employs a series of trap and alarm handlers to manage and store information about important events that are occurring on network. Alarm Management System suppresses nuisance alarms and provides valuable advisory information to help operators quickly focus on important alarm information and take correct actions. This system has been implemented on distributed control systems, validated in real online tests, and accepted by plant operators. The results nuisance alarms are effectively suppressed and alarm systems become more helpful. This system comprises several components, each of which has a specific responsibility to send, receive, transfer, handle, store, or view network alarms.

Analog Modem Routers are equipped with two external modem ports (RS 232 Serial) that allow connecting two modems/ISDN to the same ISP or two different ISP's.

Analog signal processor is a device used to conduct signal processing on analog signals by analog means. The mathematical algorithm that processes the signal is implemented with analog electronics in which the mathematical values are represented as a continuous physical quantity, an analog, usually as a voltage, electric current, or electric charge around some components in the electronic devices. A small error or noise affecting such physical quantities will result in a corresponding error in the signals represented by such physical quantities.

Analogue systems process analogue signals, which can take any value within a range, for example the output from an LDR or a microphone. An audio amplifier is an example of an analogue system. The amplifier produces an output voltage, which can be any value within the range of its power supply. An analogue meter can display any value within the range available on its scale. However, the precision of readings is limited by our ability to read them. The analogue meter can show any value between 1.2 and 1.3 but we are unable to read the scale more precisely than about half a division.