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Introducing the Dimat OPC-2

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Dewar Electronics , the Australian representative for Dimat products, would like to introduce the OPC-2 Analog Power-Line Carrier.

The OPC-2 is highly flexible and compact, good for transmitting voice and data over high-voltage power lines. It is based on advanced technology; microprocessors, digital signal processing and high performance filtering.

Unlike the OPC-1 terminal, the technology used in the design of the OPC-2 analog Power-Line Carrier terminal is completely digital and uses the latest generation elements.

This technology together with an innovative signal modulation procedure has produced a product with fewer modules but at the same time being just as robust and reliable as its predecessor OPC-1, according to the company.

There are two different models of the OPC-2 terminal, single-channel and twin-channel, with an output power (PEP) of 20, 40 or 80 W.

The twin-channel version of the OPC-2 terminal is obtained by simply substituting the corresponding basic module. In this way, the modules that make up the OPC-2 terminal are integrated in a single 6 s.u. shelf. An additional 3 s.u. shelf is only required in the case of 80 W.

One outstanding feature of the OPC-2 terminal is that it can be equipped with a redundant power-supply module.

As far as optional equipment is concerned, up to four optional modules can be added to an OPC-2 terminal, which fit perfectly in the 6 s.u. shelf with the rest of the basic modules.

Some of these options are a four-command teleprotection system, an asynchronous programmable modem and a speech system. In this way, the OPC-2 terminal continues to give great flexibility to power utilities, by enabling different types of information to be transmitted over high-voltage lines.

OPC-2 terminals have a web server that integrates all the HTML pages necessary to carry out programming and monitoring of the system. In this way, OPC-2 terminals are programmed and monitored from a standard web browser installed in a PC, in what is known as web management.

The connection between the computer and the OPC-2 terminal can be direct or by means of an IP network.

An internal data channel allows the remote terminal to be programmed and supervised from the terminal connected to the management system.

The chronological register of alarms and events in the OPC-2 terminal is carried out based on its internal real-time clock, being possible to synchronise it with the GPS system.

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