DIMAT OPU-1 - 5 Technical Characteristics; General Characteristics

OPU-1
UNIVERSAL POWER-LINE CARRIER SYSTEM TYPE OPU-1
GENERAL DESCRIPTION - Rev 7 (May 2019)
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5 TECHNICAL CHARACTERISTICS
5.1 GENERAL CHARACTERISTICS
Operating mode
(2)
Simultaneous transmission of analog and
digital channels including teleprotection
Modulation
Analog channel: Single side-band (SSB) with
suppressed carrier
Digital modem: QAM with Trellis Coding or
OFDM/OQAM
Transmission and reception bands
➢ Analog channel: Erect or inverted, adjacent
or non-adjacent.
➢ Digital channel (QAM): Superimposed or
adjacent or non-adjacent.
➢ Digital channel (OFDM/OQAM): Adjacent
or non-adjacent.
Basic bandwidth
➢ Analog channel: 4 kHz per channel in each
direction.
➢ Digital channel (QAM): 16 kHz at 81 kbit/s
(maximum), single for superimposed
bands or in each direction for non-adjacent
bands.
8 kHz at 40.5 kbit/s (maximum), single for
superimposed bands or in each direction
for non-adjacent bands.
16 kHz at 40.5 kbit/s (maximum), for
adjacent 8 kHz bands.
8 kHz at 20.25 kbit/s (maximum), for
adjacent 4 kHz bands.
4 kHz at 20.25 kbit/s (maximum), single for
superimposed bands or in each direction
for non-adjacent bands.
(
2
)
If desired, the OPU-1 can function as a High-Frequency teleprotection system. This functionality enables electrical power
utilities to transmit teleprotection commands over high-voltage lines, in only one standard 4 kHz channel, using 2 kHz for
Tx and 2 kHz for Rx. This functionality implies a specific hardware architecture of the terminal