The fully digital D6000 Power Line Carrier system, developed by Institute Mihailo Pupin on Ensico PLC platform, is a versatile system designed for the transmission of speech, data and protection signals over high-voltage power lines. System combines robustness and transparency of analogue equipment with the advantage of increased transmission capacity provided by digitalization of the standard analogue channels.

Our offer includes range of solutions that differ in HF output power and number of available channels. For specific applications we are providing industry leading maximum capacity of six 4 kHz channels that can be additionaly merged and flexibly allocated in RF band.

D6000 meets all the requirements of the IEC 60495 standard and can be semalessly integrated in the existing PLC network, i.e. there is no need to change line traps, coupling filters or frequency allocation scheme. This modular, software programmable system utilises the latest digital signal processing technology in implementation of one-step modulation scheme, modem with high digital transmission capacity and advanced low bit-rate speech coder.

Digital PLC system D6000 multiplexes compressed speech and/or data in a single bit-stream, suitable for transmition over 4 kHz bandwidth channel. Integrated modem allows for flexible data rate and automatic rate adjustment.

Modular structure of multiplexer unit provides different data and speech (telephone) interfaces:

• RS-232 asynchronous data interface

• four-wire PABX telephone interface that supports E&M signalling

• remote subscriber interface

• point-to-point connection interface (hot-line operation)

External version of multiplexer unit can be also employed as a cost-effective solution for digitalization and capacity increase of existing analogue PLC links.

Features

• Software programmability allows for local or remote reconfiguration of operational parameters

• Capacity increase of traditional analogue PLC links for several times

• One-step modulation scheme is making our solutions more compact, highly reliable and easily expandible

• Industry leading capacity of six 4 kHz channels

• Relives frequency congestion problems

• Modular design enables flexible tailoring of PLC equipment to specific customer's needs (number and/or type of channels, channel properties, output power (PEP), power supply source, optional integration of TPS function)

• Wide RF operational range from 20 kHz to 1.000 kHz, software programmable

• Compact design: PLC terminal DPGC_9 occupies standard 19 inch rack of 9U, regardless of output power (10 W, 20 W, 40 W or 80 W) and of number of channels,

• Powerful diagnostic system generates lists of diagnostic data (alarms, operational parameters, events) which enable supervision of a device condition locally or remotely

• Up-to-date technologies: advanced DSP (Digital Signal Processing) algorithms, efficient voice coding (AMBE) and CPLD (Complex Programmable Logic Device)

• Add-on teleprotection modules do not reduce channel capacity and allows customer to choose appropriate number of commands.

• Compliance with the relevant standards and recommendations: IEC 60495 (1993-09), document "Report on Digital Power Line Carrier" (CIGRE WG 35.09, April 2000) and relevant standards (IEC 61000-4-xx) on electromagnetic compatibility (EMC) and safety.