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McCurdy Radio Ltd

RS8100

RS8100 Series Remote Access Amplifier Systems


RS8100

The RS8100 Series Remote Access Program Amplifier Systems combine the automation capabilities of microprocessor control with the convenience of remote alignment and monitoring into full-featured audio program amplifier/equalizers. All parameters may be set, monitored or changed with the aid of a computer and modem, eliminating the need for travel to widely scattered installation sites for amplifier setup and equalization. Thus, allowing skilled technicians to devote more of their time to circuit setup and less to travel. All parameters may also be set locally, at the equipment site, with a computer directly connected to the program amplifier system via a serial port.

Settable amplifier/equalizer characteristics include; input impedance, output impedance, gain, amount and polarity of low frequency equalization, high frequency equalization upper frequency, high frequency equalization slope and level.

Two different versions are available, one containing up to ten equalizer/amplifiers and the other up to two equalizer/amplifiers. Each system is fully self-contained, equipped with a power supply for operation from a -48 Volt DC source, a system controller module and a high speed modem. Each configuration may also be expanded to three times its basic size with slave systems containing the same number of equalizer/amplifiers as the master. The slave systems are not equipped with a controller or modem, utilizing instead, those units contained within the master system. This allows up to thirty amplifier/equalizers to be controlled via one telephone number and modem.

The computer software used for system set up, supplied with each system, is user-friendly with on-screen prompts, complete on-line help with details for each menu item, on-screen level indicators and multiple-level verification prompts to prevent accidental signal interruption on active amplifiers. All setup information for a particular amplifier is stored in memory on that amplifier and in the controller module for all amplifiers in a system. Should an amplifier be replaced with another, the controller senses this and automatically downloads the previous amplifier's setup information, which immediately sets up the new amplifier. Thus, quickly re-equalizing the circuit and minimizing any down time.

Each amplifier/equalizer may be identified with a label of up to thirty characters and all set-up parameters, for either an individual amplifier or an entire system, may be stored in a computer disk file. These files may be uploaded to an individual amplifier or an entire system or printed on a standard printer for reference. Thus, allowing the characteristics of a previously equalized line to be quickly loaded into a new amplifier. The controller memory is non-volatile and will be maintained indefinitely, through any power failure or even removal of the module from the system, until it is over-written with new values.

Each amplifier is equipped with an LED VU meter for audio level indication along with indicators for power and lineup active. Full monitoring facilities for the input and output of each amplifier is provided, via standard bantam jacks, on the controller front panel. A 1kHz test oscillator is also incorporated within each amplifier as an aid in testing and setup.

The RS8100 system is housed an all-steel, bright plated, equipment frame which may be flush or recess mounted in either a 19 or 23 inch equipment rack, without the use of adapters, and occupies 10½ inches (6 RU) of panel space.

The RS8110 system is housed in an all-steel enclosure, finished in durable baked epoxy enamel, which mounts in a 19 inch equipment rack and occupies 5¼ inches (2 RU) of panel space.

All input, output and power connections to either system are made to rear panel connectors for speed and ease of installation. All plug-in modules utilize premium, extra-rigid, printed circuit boards equipped with metal-to-metal, two-piece connectors for maximum reliability and ease of insertion/extraction. Each is also equipped with a regulated, protected, internal power supply for operation from a standard -48 Volt DC source.

REMOTE ACCESS AMPLIFIER SYSTEM FEATURES

  • Increases efficiency and economy of program amplifier setup & equalization

  • Amplifier/Equalizers may be set up from any location with a computer & modem

  • Amplifier/equalizers may be set up directly, by computer, at the unit location

  • Program lines may be monitored for activity & level from any location with a computer & modem

  • Program lines may be monitored for activity & level, by computer, at the unit location

  • All settings are maintained indefinitely in memory, independent of power failures

  • Replacement amplifier/equalizers are immediately set with the previously used parameters

  • Setup parameters may be stored in a computer file for security or future use

  • Setup parameters may be sent from a computer file to an amplifier or the entire system

  • Setup software runs on virtually any DOS based computer with a 286, or higher, processor

  • Complete help files, for every function, is included in the setup software

  • User confirmation is required before the software allows interruption of an amplifier

  • Each amplifier is equipped with an LED VU meter for audio level indication

  • The RS8100 system is expandable up to 30 amplifiers by adding up to two slave systems

  • The RS8110 system is expandable up to 6 amplifiers by adding up to two slave systems

  • The RS8100 system is fully modular using premium grade circuit boards with two-piece connectors

  • The RS8110 system uses an integral controller and modem with modular amplifiers

  • Both systems are fully connectorized for ease and speed of installation

  • Internal 1kHz test oscillator & full monitoring facilities provided by test jacks on front panel

  • Compact size, only 3 rack units (5¼in.) for the RS8110 system and 6 rack units (10½in.) for the RS8100 system

    RS8100 Block

    RS8100 Rear

    SPECIFICATIONS

  • Frequency Response, No equalization: 50Hz to 15kHz, ±0.5dB at +18dBm Output 30Hz to 30kHz within 1dB

  • Harmonic Distortion, No equalization: 0.5% Max., 50Hz to 15kHz at +18dBm Output 1% Max., 30Hz to 30kHz at +18dBm output

  • Noise: -70dBm, Maximum, No Equalization

  • Crosstalk (Any 2 program Lines): -70dBm, Maximum

  • Gain: 0 to 29.9dB, adjustable in 0.1dB steps

  • Input Impedance: 150 or 600O Balanced

  • Input Level: +18dBm, Maximum

  • Input Longitudinal Balance 70dB Min. at 1kHz

  • Input Return Loss: 35dB Minimum

  • Output Level, Maximum: +18dBm

  • Output Impedance, Main: 150 or 600O Balanced

  • Output Longitudinal Balance: 70dB Min. at 1kHz

  • Output Impedance, Monitor Jack: 600O Balanced

  • High Frequency Equalization: 0 to +29.9dB, in 0.1dB steps at 5, 8 or 15kHz

  • High Frequency Range (Fo): Adjustable in 8 steps from -33% to +83% of center frequency

  • High Frequency Slope (Q): Adjustable in 8 steps from maximum to minimum

  • Low Frequency Equalization: 0 to ±4.9dB, in 0.1dB steps at 50Hz

  • Phase Delay Equalization: 80° at 15kHz, Maximum

  • Equalizer Adjustment:

  • a) Local: DOS Computer via RS232 Control Port

  • b) Remote: DOS Computer via modem on switched telephone line

  • Test Oscillator: 1kHz at 0dBm, 1% THD, Maximum

  • Level Indication: Digital, On computer screen, -40dBm to +20dBm

  • 10 Segment LED on each EA8101, -18dBm to +9dBm

  • Bantam Test Jacks: 2 On Control Module, Providing Output Monitor,

  • Amplifier & Line Input & Output

  • Power Requirements: RS8100: -43.2 to -52.8 Volts DC at 2½ Amperes, Maximum.

  • RS8110: -43.2 to -52.8 Volts DC at 1 Ampere, Maximum

  • 400 millivolt Peak-to-Peak ripple, Maximum

  • Operating Temperature Range: 0 to 55° C, 32 to 131° F

  • Overall Dimensions: RS8100: 10½in.(267mm) x 19in.(483mm) x 11½in.(292mm)

  • RS8110: 5½in.(133mm) x 19in.(483mm) x 11½in.(292mm)

  • Mounting: RS8100: 6 RU in standard 19 or 23 inch rack, flush or recess

  • RS8110: 3 RU in standard 19 inch rack, flush

  • RS8100 System Frame Configuration: Up to 10 EA8101 Equalizer Amplifiers,

  • 1 CM8102 Control Module

  • 1 MM8103 Remote Communication Modem Module

  • 1 PS8105 System Power Supply

  • Amplifiers Per Controller: RS8100: 30 Maximum; 10 each in master and 2 slave frames

  • RS8110: 6, Maximum; 2 each in master unit and 2 slave units

    ORDERING INFORMATION

  • Basic RS8100 System, including FR8000 Frame & PS8105 Power Supply: RS8100

  • Equalizer Amplifier Module, 10 Max for RS8100, 2 Max for RS8110: EA8101

  • RS8100 Control Module, including EA8107 PC Software: CM8102

  • RS8100 Remote Communication Modem Module: MM8103

  • Spare Power Supply Module for RS8100 system: PS8105

  • Slave Dual Equalizer System, including only the chassis & power supply: RS8109

  • Master Dual Equalizer Amplifier System, including modem & controller: RS8110





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