9508 Analog Single Side Band Power Line Carrier

Product Description

The RFL 9508 DSP Powerline Carrier System is a highly integrated and state of the art PLC terminal which incorporates Digital Signal Processing technology (DSP) to increase reliability and flexibility, while reducing physical size. Furthermore, the mechanical arrangement has been simplified for easier installation and maintenance.

These terminals offer a choice of two power output levels, and a wide range of options which include the choice of PLC, E1 or T1. Plug-in teleprotection modules are available to complete an integrated communication system design.

All channels are capable of Drop and Insert operation at the analog or digital T1/E1 level. These features make for a unique product that is ultimately flexible.

The frequency range is 20 kHz to 500 kHz. Single Side Band (SSB) modulation is used for the RFL 9508 where the use of the spectrum is optimized with high quality adjacent channel selectivity. Idle channel noise, cross-talk and spurious outputs are minimized and high frequency stability over the specified temperature range is achieved.

The equipment is designed to operate in the harsh environment of electric utility substations and is based, in part, on the successful and proven RFL IMUX 2000 T1/E1 multiplexer family of products.

An integrated orderwire service channel is included in the standard system. It features an adjustable volume control and audible ARD tone at the far end when the handset is taken off the hook at the near end.

Key Features and Benefits

Interconnection between a Power Line Carrier and any existing or new T1/E1 Network.
IEC60495 and IEC60834-1 standards exceeded.
Programmable for 2.5 kHz or 4 kHz operation.
AF and RF functionality 100% programmable through a Windows® Interface.

50 or 100 Watt PEP output power.
Up to 8 independent commands of integrated transfer trip.
20 kHz - 500 kHz frequency range with no components to change in the field.

Teleprotection Electrical Specifications

Optically Isolated Inputs:

Operating Voltage Range:

48 Vdc 38-60 Vdc
125 Vdc 88-150 Vdc
250 Vdc 200-280 Vdc

Input threshold 1/2 normal station battery.

Solid-State Outputs:

Maximum continuous output current 1 A
Minimum output current 20 mA
Maximum open circuit voltage 280 Vdc
Maximum turn on delay 100 µs

Optional Relay Outputs:

Maximum continuous output current 2 A (inductive)
Maximum surge current (100ms) 30 A
Maximum breaking current 1 A (resistive)
Maximum open circuit voltage 280Vdc
Maximum operate time 5 ms
ESD Withstand IEC-610004-2, ANSI C37.90.3
RFl Withstand IEC-60834, ANSI C37.90.2
SWC Withstand IEC-801-4, ANSI C37.90.1
Dielectric Withstand 2500 Vdc per IEC-60255-22-1 and IEC-60834-1

Alarm Relay

Output Form “C” (spdt)
Open Circuit Voltage 300 Vdc

Current (continuous) 1 A
Breaking Current 1 A, Non-inductive

RF Band

Frequency range 20 to 500 kHz
Full duplex Channels 1, 2, 3, or 4 SSB Channels
Channel Bandwidth 2.5 kHz, 4 kHz
Selectivity

Overall (4 kHz from Bandedge) = -75 dBmO

Impedance 50, 75, 100 or 150 Ohms unbalanced or balanced

AF Band

AGC dynamic range +14 to -26 dB, or + 20dB
Background Noise = -55 dBmOp (IEC60495 recomm)
Harmonic Distortion = -40 dBmO F=400 Hz (IEC 495 recomm)
Group Delay (IEC60495 recomm)
Frequency Stability ± 0.5 Hz at 250 kHz (±2 ppm)
Tx Line Filters Adjustable from 20 to 500 kHz
Rx Line Filters Adjustable from 20 to 500 kHz

Signaling (Pilot)

Frequency 3825 Hz, 3600 or 2385
Type of modulation FSK
Frequency shift ± 30 Hz from channel center frequency

Environmental Conditions

Ambient Temperature Range -20 to + 65ºC
Relative Humidity 0 to 95% non condensing

Weight

50W RFL 9508 38 lbs / 17.3 kg
100W RFL 9508 54 lbs / 24.6 kg

Fig. 1 - a typical application of an RFL 9508 in a system

Fig. 2 - a typical application of an RFL 9508 in a system

Digital repeaters offer distinct economic and technical advantages over audio repeaters because a digital repeater is made digitally at 1.54 or 2 Mbps; consequently, an audio repeater always requires two repeaters per channel and an increase in the Group Delay.

Ordering Information

RFL 9508 smart # sheets

Available Files

Product Brochure

9508 DSP POWERLINE CARRIER SYSTEM (PDF)

Files Available in the Customer Area

Please visit Operating Manuals or Product/Software Downloads to download relevant files. Requires RFL Customer Account.

INSTRUCTION MANUAL RFL 9508RT
Remote Teleprotection Terminal (For use with RFL 9508 SSB PLC Terminal)

RFL 9508RT (June 2005)

INSTRUCTION MANUAL RFL 9508
ANALOG SINGLE SIDEBAND POWERLINE CARRIER

RFL 9508 (September 2012)

INSTRUCTION MANUAL RFL 9508D UCC
DIGITAL POWER LINE CARRIER MULTIPLEXING SYSTEM

RFL 9508D UCC (September 2012)

Please visit Operating Manuals or Product/Software Downloads to download relevant files. Requires RFL Customer Account.

Files Available in the Customer Area

RFL 9508 Network Management Software V9508 10.12

This software is used to interrogate and program the RFL 9508 DSP Powerline Carrier system. This ZIP file contains the executable file. Windows 2000 or higher is recommended for use with this software.

Download this software in Product/Software Downloads

Key Features & Benefits

Key Features and Benefits

Interconnection between a Power Line Carrier and any existing or new T1/E1 Network.
IEC60495 and IEC60834-1 standards exceeded.
Programmable for 2.5 kHz or 4 kHz operation.
AF and RF functionality 100% programmable through a Windows® Interface.

50 or 100 Watt PEP output power.
Up to 8 independent commands of integrated transfer trip.
20 kHz - 500 kHz frequency range with no components to change in the field.

Technical Specifications