NMP200 Noise Masking Processor Operation Manual ® Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 http://www.biamp.
blank print update Aug 8/01
Q: What is this ’Leveler’ inside the NMP200? The Leveler function, in the Gain Manager section of an NMP200, is an automatic gain control (AGC). This means that the Leveler automatically adjusts volume levels up or down to compensate for signals that are softer or louder than normal.
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NMP200 INTRODUCTION TABLE OF CONTENTS Front & Rear Panel Features Setup Logic Inputs pg. 2 pgs. 3~12 pg. 13 RS-232 Control pgs. 14 & 15 Applications pgs. 16 & 17 ® The ADVANTAGE NMP200 Noise Masking Processor provides a digital pinknoise generator, a balanced line-level audio input, and a 2-channel DSP processor, all in a single rack-space unit. Noise & audio levels, plus two channels of EQ, gain management, & delay, are adjusted via computer software.
FRONT & REAR PANEL FEATURES ADVANTAGE NMP200 Noise Masking Processor on BIAMP SYSTEMS ~ 27V 50/60 Hz Portland, Oregon serial port 12 watts class 2 wiring link port an affiliate of Rauland-Borg Corp. NMP200 link logic inputs output 2 output 1 MADE IN U.S.A. input On Indicator: When power is applied to the NMP200, this red LED will light indicating power to the unit is On.
SETUP ® NMP200 parameters are all adjustable using the Windows 95/98/NT/2000 ’BiampWin’ software and serial cable provided with the unit. ® BiampWin software provides programs for various ADVANTAGE products, including the NMP200. The NMP200 program includes several control screens, which are described on the following pages. Once the software is started (and Comm Port Configuration is set), the control screens are accessed via the drop-down menus at the top of the opening screen.
SETUP GAIN MATRIX #1 SCREEN The Gain Matrix #1 screen provides a channel-to-channel (2x2) mix matrix, which can be used to adjust the amount of Input & Noise signal being routed to each of the processing channels (Output 1 & Output 2). From the factory, Input 1 is routed to Output 1 only, and Noise is routed to Output 2 only, providing two independent signal paths. Levels are adjusted by dragging the corresponding ‘faders’ up or down.
SETUP GAIN MANAGER SCREEN The Gain Manager screen is used to adjust Leveler, Compressor, Limiter & Soft Gate settings for each of the processing channels (Output 1 & Output 2). Threshold adjusts the signal level at which the Leveler, Compressor, & Limiter functions are triggered. Therefore, these controls determine the amount and type of gain processing to be applied to the signals. The Leveler controls the long-term average signal level.
SETUP PARAMETRIC EQ SCREEN The Parametric EQ screen is used to adjust equalization for each of the processing channels (Output 1 & Output 2). Up to 28 bands of equalization, plus high-pass & low-pass filters, are available per channel. NOTE: Parametric & Graphic equalization techniques may be used simultaneously on the same channel, as long as the total number of bands per channel does not exceed 28. Frequency selects a center frequency for the current band.
SETUP GRAPHIC EQ SCREEN The Graphic EQ screen is used to adjust equalization for each of the processing channels (Output 1 & Output 2). Up to 28 bands of equalization, plus high-pass & low-pass filters, are available per channel. NOTE: Parametric & Graphic equalization techniques may be used simultaneously on the same channel, as long as the total number of bands per channel does not exceed 28. Default operation of the Graphic EQ is 1/3-octave, 28-bands, and ISO standard center frequencies.
SETUP GAIN MATRIX #2 SCREEN The Gain Matrix #2 screen provides a channel-to-channel (2x2) mix matrix (identical to Gain Matrix #1), which can be used to adjust the amount of signal being routed from each channel to the other. From the factory, Channel 1 is routed to Output 1 only, and Channel 2 is routed to Channel 2 only, providing two independent signal paths. Levels are adjusted by dragging the corresponding ‘faders’ up or down.
SETUP DIGITAL DELAY SCREEN The Digital Delay screen is used to adjust delay time settings for each Output. Delay time is shown in the window, with adjacent buttons providing the up/down adjustments. Coarse buttons change the delay time in 1 milli-second increments. Fine buttons change the delay time in 21 micro-second increments. Delay time may also be entered directly into the window, but will be rounded to the nearest available setting.
SETUP LOGIC INPUT DEFINITIONS SCREEN The Logic Input Definitions screen is used to assign specific ‘actions’ to the sixteen Logic Inputs. Logic Inputs allow remote control of the NMP200 via external circuits, such as switches, contact-closures, active driver circuits, and/or ‘open-collector’ logic outputs (see Logic Inputs on pg. 13). From the factory, Logic Inputs 1~16 have no pre-programmed functions. However, using the Logic Input Definitions screen, each Logic Input may be assigned various ‘actions’.
SETUP BUTTON DEFINITION SCREEN The Button Definitions screen is used to assign specific ‘actions’ to remote control buttons. Although the NMP200 does not accept wallmount (WMC) or infrared (IR-T) push-button remote controls directly, an accessory unit (RT) is available, which can translate these control ® buttons into RS-232 commands. The NMP200 can also receive ‘echo’ characters (via RS-232) from other ADVANTAGE products which are utilizing these types of push-button remote controls.
SETUP CONFIGURATION OPTIONS SCREEN The Configuration Options screen is used to select options which customize the operation of the NMP200. At the top of the Configuration Options screen, the Serial Number and Firmware Version of the NMP200 will be displayed. BiampWin software can operate ‘off-line’ (with no product connected) by opening a ‘new’ file for the desired product. The Serial Number and Firmware Version are not displayed for ‘new’ (‘off-line’) files.
LOGIC INPUTS Sixteen Logic Inputs are available on a rear panel 25-pin Sub-D (female) connector. Logic Inputs allow remote control of the NMP200 via external circuits, such as switches, contact-closures, active driver circuits, and/or ‘open-collector’ logic outputs. From the factory, Logic Inputs 1~16 have no pre-programmed function. However, each Logic Input may be assigned different ‘actions’ using the BiampWin software and serial cable provided with the NMP200 (see Setup on pg. 10).
RS-232 CONTROL The NMP200 has an RS-232 Serial Port, which allows it to be controlled by a computer (see Front & Rear Panel Features on pg. 2). In addition to the BiampWin software, the NMP200 offers two other methods of computer control. Control Button Emulation: This method allows the computer to imitate the operation of an infrared transmitter or wall-mount control panel.
RS-232 CONTROL Serial Port: The 9-pin Sub-D (male) connector on the NMP200 rear panel provides the RS-232 compatible serial interface signals used for computer control. The NMP200 Serial Port transmits serial data on pin 3 (TxD), receives serial data on pin 2 (RxD), and provides a ground on Pin 5. The Data Terminal Ready (DTR) & Request To Send (RTS) output signals are connected to the +12 Volt power supply (through a resistor) and are always asserted when the MSP22 power is on.
APPLICATIONS Courtroom System Noise-Masking, Recording, & Conferencing DMD judge's sidebar/ masking switch BIAMP SYSTEMS out - + Portland, Oregon an affiliate of Rauland-Borg Corp. in - + out - + patch DC out MADE IN U.S.A. in - + out - + in/out patch 4 DC in in - + out - + in/out patch 3 in - + in/out patch 2 in/out 1 12V PS e ns fe de .
APPLICATIONS Office System Noise-Masking & Zone Paging page routing panels emergency alarm signal telephone all-call vox-relay vox-relay zone 1 zone 2 all-call zone 1 zone 2 all-call paging mic 2 paging mic 1 page source selection VRAM input input input input input d. out input d. out input d. out input d. out aux 1 d. out aux 2 d. out aux d. out main d.
SPECIFICATIONS & BLOCK DIAGRAM Frequency Response (20Hz~20kHz @ +4dBu): +0/-0.5dB Sampling Rate: THD+Noise (20Hz~20kHz @ +4dBu): < 0.002% A/D & D/A Converters: > 100dB Power Consumption: Dynamic Range (20Hz~20kHz): Maximum Gain: 20dB Input Impedance (balanced): Output Impedance (balanced): Maximum Output (balanced): < 15 watts height (1 rack space) 1.75” (44mm) +24dBu width 19” (483mm) 200 ohms depth 7” (178mm) +24dBu Weight: 4.5 lbs. (2.
WARRANTY BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR LIMITED WARRANTY TO THE ORIGINAL PURCHASER OF THE PROFESSIONAL SOUND EQUIPMENT DESCRIBED IN THIS MANUAL. BIAMP Systems expressly warrants this product to be free from defects in material and workmanship for a period of 5 YEARS from the date of purchase as a new product from an authorized BIAMP Systems dealer under the following conditions. 1.
Declaration of Conformity Biamp Systems, Inc., as the manufacturer, hereby declares that the following described product, in our delivered version, complies with the provisions of the DIRECTIVES except as noted herein. In case of alteration of the product, not agreed upon or directed by us, this declaration is no longer valid.
