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.com
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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.
Q: What can this ’Leveler’ do for me and my customer?
The two most common applications for the Leveler are to control music sources which have been recorded at different levels,
and to control different levels of speech caused by the person(s) speaking and/or their varying distances from the microphones.
Example #1
levels, the volume from one CD to another can vary significantly. In the background music system it is desirable for the music
to maintain a consistent level. A Limiter or Compressor could be employed, but they would only squash the dynamics, and
diminish the quality of the music signal. A Leveler, on the other hand, actually controls the overall level of the signal, without
adversely affecting the dynamics of the signal itself. Therefore, a Leveler can be used to provide a constant volume from the
system, regardless of varying CD levels. This is also true for systems with a variety of music sources (i.e...cassette, tuner,
etc.).
Example #2
alternately, a witness may become timid (soft), the volume from one participant to another can vary significantly. In the
courtroom system it is desirable for all participants to be heard clearly. A Limiter or Compressor could be employed, but they
would squash the dynamics, and only on signals that were louder
increases level when signals are softer than normal and
Leveler can be used to provide a constant volume from the system, regardless of varying speech levels or proximity to the
microphones.
: A background music system utilizing a CD player as the primary source. Since CDs can be recorded at different
: A courtroom with multiple microphones for the participants. Since an attorney might get aggressive (loud) and,
than normal. A Leveler, on the other hand, actually
decreases level when signals are louder than normal. Therefore, a
Q: How should I adjust this ’Leveler’ to do what I want?
1) Using a typical input signal, adjust the source output and the NMP200 input for proper levels.
(The NMP200 software input meter should indicate occasional peaks into the yellow, but never to the red.)
2) Select the Gain Manager section of the NMP200 software.
3) Bypass all Gain Manager functions except
(This allows the Gain Reduction meter to be used for setup of the Leveler specifically.)
4) Adjust the Leveler ’threshold’ so the Gain Reduction meter indicates the desired amount of gain reduction.
(The amount of gain reduction employed on ’normal’ level signals equals the gain available for raising ’softer’ level signals.)
(Example: Play a normal level CD. Adjust for 6dB of gain reduction. CDs with lower levels can be raised as much as 6dB.)
(Likewise, ’louder’ signals will be lowered. The Leveler will attempt to bring softer or louder signals to the threshold level.)
NOTE: The Gain Manager provides gain reduction even on input signals of nominal level. Therefore, all subsequent software
meters will indicate the resultant lower level. This lower level can then be compensated for by increasing the input level on the
next device in the system (i.e...power amplifier).
CAUTION: The Gain Manager can increase gain for lower level signals. Therefore, once all of the system settings have been
adjusted, temporarily bypass the Gain Manager as a test of system feedback stability. If acoustic feedback occurs, reduce the
system amplifier level or use the NMP200 parametric equalizer to eliminate feedback nodes, before re-enabling the Gain
Manager.
the Leveler.
blank
space unit. Noise & audio levels, plus two
TABLE OF CONTENTS
Front & Rear Panel Features
Setup
Logic Inputs
RS-232 Control
Applications
Specifications & Block Diagram
Warranty
pg. 2
pgs. 3~12
pg. 13
pgs. 14 & 15
pgs. 16 & 17
pg. 18
NMP200
INTRODUCTION
The ADVANTAGE
noise generator, a balanced line-level audio input, and a 2-channel DSP
processor, all in a single rackchannels of EQ, gain management, & delay, are adjusted via computer
software. Sixteen presets can be recalled via contact-closures, RS-232, or
other remote control options. The NMP200 carries a five-year warranty.
NMP200 features include:
♦ pink-noise & audio input, with 2-channel DSP processor
♦ noise generator spectral purity (±0.1dB @ 0Hz~20kHz)
♦ precision pink-noise filtering (-3dB per octave low-pass)
♦ extended ‘non-apparent’ repeat time of noise (200 minutes)
♦ combined 1/3-octave & parametric equalization per channel
♦ selectable high & low frequency shelving filters per channel
♦ HPF & LPF with variable frequency & slope per channel
®
NMP200 Noise Masking Processor provides a digital pink-
♦ leveling, compression, limiting, & soft-gating per channel
♦ output delay, with distance/delay calculation, per channel
♦ two independent matrixes for channel-to-channel mixing
♦ variable noise, input, & output levels with software metering
♦ sixteen non-volatile memory presets store/recall settings
♦ balanced input & outputs on plug-in barrier strip connectors
♦ software for Windows
®
95/98/NT/2000 & cable included
♦ no manual controls on front panel, to prevent tampering
♦ remote control via RS-232 & programmable logic inputs
♦ accessory units allow control via pots (RCU) or buttons (RT)
♦ incorporates AES recommended grounding practices
♦
marked and UL / C-UL listed power source
♦ covered by Biamp Systems’ five-year warranty
1
FRONT & REAR PANEL FEATURES
ADVANTAGE NMP200
Noise Masking Processor
27V
~
50/60 Hz
serial port
12 watts
class 2 wiring
link port link
logic inputs
output 1 inputoutput 2
On Indicator: When power is applied to the NMP200, this red
LED will light indicating power to the unit is On. When power is
turned off, all current settings will be stored in non-volatile memory
and recalled when power is turned back on. NOTE: During setup
the NMP200 may instead be set to recall a special preset
whenever power is turned on (see Setup on pg. 10).
AC Power Cord: The power transformer provides 27 Volts AC to
the NMP200, and is detachable via a 5-pin DIN connector. The
NMP200 has two internal ‘self-resetting’ fuses (there are no user
serviceable parts inside the unit). If the internal fuses blow, they
will attempt to re-set after a short period. However, this may be an
indication that the NMP200 requires service.
Serial Port: This 9-pin Sub-D (male) connector provides an RS232 Serial Port for remote control via computer or third-party
controllers (see RS-232 Control on pg. 14). The Serial Port has
the following pin assignments (left-to-right & top-to-bottom): Pin 1)
not used; Pin 2) Receive Data (RxD) input; Pin 3) Transmit
Data (TxD) output; Pin 4) Data Terminal Ready (DTR) output;
Pin 5) Ground; Pin 6) not used; Pi n 7 ) Request To Send (RTS)
output; Pin 8) not used; Pin 9) not used. The default baud rate
for the Serial Port is 38,400 (See RS-232 Control on pg. 16).
BiampWin software and a serial cable are provided for
programming via Windows
®
95/98/NT/2000 (see Setup on pg. 3).
NOTE: The Serial Port can also transmit commands received via
the Logic Inputs (see Setup on pg. 10). Accessory units (RCU &
RT) allow programmable RS-232 control via pots, switches, or
push-button panels.
Link Port: This 9-pin Sub-D (female) connector provides a Link
Port for RS-232 control of multiple ADVANTAGE
®
products (see
RS-232 Control on pg. 15). The Link Port of one device simply
connects to the Serial Port of the next device (and so forth). Link
cables are available as an option (Biamp #909-0057-00). NOTE:
All but the final device in a system should have the Link Switch
pressed in (see below). The Link Port has the following pin
assignments (right-to-left & top-to-bottom): Pin 1) not used; Pin
2) Transmit Data (TxD) output; Pin 3) Receive Data (RxD) input;
Pin 4) not used; Pin 5) Ground; Pi n 6) not used; Pin 7) not
used; Pin 8) not used; Pin 9) not used. NOTE: The Link Port
will also transmit commands received via the Logic Inputs (see
Setup on pg. 10).
on
BIAMP SYSTEMS
Portland, Oregon
an affiliate of
Rauland-Borg Corp.
NMP200
MADE IN U.S.A.
Link Switch: The Link Switch is used when connecting multiple
devices in a ‘Link Port to Serial Port’ configuration (see Link Port
above). From the factory, the Link Switch is released (out). When
connecting multiple devices, the Link Switch must be depressed
(in) on all devices except
with no Link Port connection). NOTE: The Link switch must
remain OUT when only a single device is being used.
Logic Inputs: This 25-pin Sub-D (female) connector provides
sixteen logic inputs for controlling the NMP200 via contact-closures
(see Logic Inputs on pg. 13). Logic Inputs are programmed using
the BiampWin software and serial cable provided with the NMP200
(see Setup on pg. 10). NOTE: From the factory, Logic Inputs
1~16 have no pre-programmed function.
Outputs 1 & 2: These plug-in barrier strips provide the balanced
analog line-level Outputs from processor Channels 1 & 2. For
balanced output, wire high to (+), low to (-), and ground to (
unbalanced output, wire high to (+) and ground to (
unconnected. Signal level will be reduced by 6dB when outputs
are unbalanced.
Input: This plug-in barrier strip provides the balanced analog linelevel audio input. For balanced input, wire high to (+), low to (-),
and ground to (
ground to both (-) & (
provides a second input. Input & noise may be assigned in any
combination to the two processing channels (see Setup on pg. 4).
the final device in the system (the device
ý
). For
ý
), leaving (-)
ý
). For unbalanced input, wire high to (+) and
ý
). NOTE: The internal pink-noise generator
2
SETUP
NMP200 parameters are all adjustable using the Windows
BiampWin software provides programs for various ADVANTAGE
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. The Main
file is opened. Gain Matrix #1
, Gain Manager, EQ, Gain Matrix #2, & Delay screens are then available from the Main screen. Logic
Definition, Button Definition, & Configuration Options screens are also available from the Configure NMP200 menu. The File menu
provides functions such as save, open, download, etc. The Settings
menu arranges the active product screens. The Help
‘Run’ from the ‘Start’ menu, and enter A:\SETUP. System Requirements
(serial port required for ‘on-line’ operation).
®
95/98/NT/2000 ’BiampWin’ software and serial cable provided with the unit.
®
products, including the NMP200. The NMP200 program includes several
screen appears whenever an NMP200
menu recalls the Comm Port Configuration screen. The Window
menu explains the available adjustments. To install BiampWin Software: Select
: Windows® 95/98/NT/2000 with 5MB of available hard disk space
MAIN SCREEN
The Main Screen is used to adjust NMP200 input/output levels, to access the processing control screens, and to store/recall Presets 1~16.
Adjustments are made with the computer mouse (or keyboard). Input, Noise, Output 1, & Output 2 levels are adjusted by dragging the
corresponding ‘faders
’ up or down. These are the analog signal input & output circuits. ‘Meters’ are provided on each channel to display
input/output levels at specific points along the digital signal processing paths, and at the analog outputs. NOTE: For best performance,
adjust levels so the meters show occasional peaks in the yellow area, but never to the top (red). Output 1 Mute & Output 2 Mute
the respective output signal on/off, as well as indicate the output muting status. Logic Inputs
Logic Inputs are turned on via external remote control (see Logic Inputs on pg. 13). Preset
non-volatile memory. Presets must first be created & stored by the user (no factory presets). The Store
indicators will light whenever the respective
buttons recall the corresponding presets from
button opens a menu for storing
will toggle
current settings in any of the Presets 1~16. Presets may be stored and recalled (in total or in part) via remote control (see Logic Input
Definitions screen on pg. 10). The title bar across the top of the Main screen will indicate the Device #, the custom Device Name, and the
model of product being controlled. BiampWin Software can operate ‘off-line’ (with no product connected) by opening a ‘new’ file for the
desired product. The Device # for ‘off-line’ files is assigned sequentially as a negative number.
3
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
’ are provided on each channel to display input/output levels at Gain Matrix #1. NOTE: For best performance, adjust levels so the
‘Meters
meters show occasional peaks in the yellow area, but never to the top (red). Invert
be reversed (180°).
The NMP200 has two basic applications which utilize Gain Matrix #1
1) Input 1 can be routed to Output 1 and Noise can be routed to Output 2. Each channel of processing is dedicated to either Input 1 or
Noise signal. Switching between Input 1 & Noise signals (to either Output) is then accomplished via Gain Matrix #2 presets (see Gain
Matrix #2 screen on pg. 8). This is effective when only a single output (zone), or two outputs (zones) with independent delay, are required.
See Courtroom application on pg. 16.
2) Gain Matrix #1 presets can be used to switch between Input 1 or Noise signal being routed to either Output. Each channel of
processing is dedicated to a specific Output (zone), via Gain Matrix #2. Separate EQ presets for Input 1 & Noise signals, as they appear at
each output (zone), can also be used. This is effective when two outputs (zones), each with dedicated processing, are required. See
Office application on pg. 17.
Of course, the NMP200 can simply be configured for processing Noise (or Input 1) signal only, at both Outputs.
:
allows the phase of each corresponding signal path to
’ up or down.
4
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
controls determine the amount and type of gain processing to be applied to the signals. The Leveler
level. If the average signal level increases, the Leveler will reduce gain to compensate. If the average signal level decreases, the Leveler
will increase gain to compensate. The Compressor
automatically varies in ratio from 1.1:1 on signals just slightly above Threshold, to more than 10:1 at full compression. The Compressor
responds to average & peak levels, working with the Leveler to maintain a constant output level. The Limiter
signal level by providing ‘hard’ limiting, which establishes an absolute ceiling level. The Limiter provides protection against clipping
distortion, and the chance of amplifier overload or speaker damage, due to sudden transients. From the factory, the default Threshold
settings will provide approximately 6dB of gain reduction on input signals of nominal level. Bypass
Compressor, or Limiter functions for that Channel, without changing the actual settings. Soft Gate Bypass
circuit for that Channel, which reduces gain 2dB for each 1dB that signal falls below threshold (-30dBu). The Soft Gate gracefully
attenuates background/ambient noise during periods of silence. Bypass GM
functions for that Channel, without changing the actual settings. ‘Meters
well as the amount of gain reduction, at the Gain Manager section. NOTE: The Gain Manager provides gain reduction even on input
signals of nominal level. Therefore, all subsequent meters will indicate the resultant lower levels. CAUTION: The Gain Manager can
increase gain for lower level signals. Therefore, after all system settings have been adjusted, temporarily bypass the Gain Manager as a
test of system feedback stability. If acoustic feedback occurs, reduce the system amplifier levels or use the NMP200 parametric equalizer
to eliminate feedback nodes, before re-enabling the Gain Manager.
adjusts the signal level at which the Leveler, Compressor, & Limiter functions are triggered. Therefore, these
controls short-term peaks in signal level by providing ‘soft-knee’ compression, which
’ are provided on each channel to display input/output levels, as
defeats all Leveler, Compressor, Limiter, & Soft Gate
controls the long-term average signal
controls short-term peaks in
defeats the individual Leveler,
defeats a downward expander
5
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
center frequency for the current band. Gain
Bandwidth
Frequency, Gain, & Bandwidth may also be adjusted by dragging the cursors shown inside the upper graph
affects both Frequency & Gain. Dragging either of the open circles will affect Bandwidth. Add
1kHz), leaving place-mark cursors for any previous bands. NOTE: Initially, there are no parametric filter bands available for adjustment,
until Add has been selected. Delete
Bands Used
provides a menu of copy/paste functions, which allows settings of the 28 bands, plus high-pass & low-pass filters, to be copied from one
channel to the other, or to another unit. ‘Meters
selects the Parametric EQ Screen or the Graphic EQ Screen (see Graphic EQ Screen on next page). Low Shelf
shelving parametric band. High Shelf
affected by the Delete or Delete All buttons. They may only be deleted by means of their individual check boxes. Bypass EQ
parametric & graphic equalization for that channel, without changing actual settings
selects the range of frequencies, above & below the center frequency, which will also be affected by the current band.
erases the current band, and returns to the previous band. Delete All erases all parametric bands.
& Bands Available are shown above. The lower graph area shows the cumulative effect of all equalization. Right-clicking
selects the amount of cut or boost applied at the center frequency for the current band.
’ are provided on each channel to display input/output levels at the EQ section. EQ Mode
adds a high-frequency shelving parametric band. NOTE: Low Shelf & High Shelf bands are NOT
area. Dragging the solid dot
advances to a new parametric filter band (at
adds a low-frequency
selects a
defeats all
6
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. Therefore, gain for each band can be simply adjusted by
dragging the square cursors up or down inside the upper graph
Right-clicking provides a menu of copy/paste functions, which allows settings of the 28 bands, plus high-pass & low-pass filters, to be
copied from one channel to the other, or to another unit. Bands Used
the cumulative effect of all equalization. ‘Meters
selects either Parametric or Graphic equalization (see Parametric EQ Screen on previous page). HPF Slope
selecting a desired slope. LPF Slope
is enabled, a square cursor appears in the upper graph area to allow frequency adjustment for that filter. The effect of High-Pass & Lo wPass Filters is also shown in the lower graph area. NOTE: HPF & LPF are NOT affected by the Flat button. They may only be deleted by
means of their individual menu boxes. Bypass EQ
actual settings.
enables a Low-Pass Filter by selecting a desired slope. Once a High-Pass Filter or Low-Pass Filter
’ are provided on each channel to display input/output levels at the EQ section. EQ Mode
defeats all parametric & graphic equalization filters for that channel, without changing
area. Flat erases all graphic bands, setting all faders to the center line.
& Bands Available are shown above. The lower graph area shows
enables a High-Pass Filter by
7
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
’ are provided on each channel to display input/output levels at Gain Matrix #1. NOTE: For best performance, adjust levels so the
‘Meters
meters show occasional peaks in the yellow area, but never to the top (red). Invert
be reversed (180°).
The NMP200 has two basic applications which utilize Gain Matrix #2
1) Each channel of processing is dedicated to either Input 1 or Noise signal, using Gain Matrix #1 (see Gain Matrix #1 screen on pg. 4).
Switching between Input 1 & Noise signals (to either Output) is then accomplished via Gain Matrix #2 presets. This is effective when only a
single output (zone), or two outputs (zones) with independent delay, are required. See Courtroom application on pg. 16.
2) Gain Matrix #1 presets can be used to switch between Input 1 or Noise signal being routed to either Output (see Gain Matrix #1 screen
on pg. 4). Each channel of processing is dedicated to a specific Output (zone), via Gain Matrix #2. Separate EQ presets for Input 1 &
Noise signals, as they appear at each output (zone), can also be used. This is effective when two outputs (zones), each with dedicated
processing, are required. See Office application on pg. 17.
Of course, the NMP200 can simply be configured for processing Noise (or Input 1) signal only, at both Outputs.
:
allows the phase of each corresponding signal path to
’ up or down.
8
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
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. Msec
meters). NOTE: Distances should be measured in terms of the difference
listener (i.e...direct source to listener = 200 feet; delayed source to listener = 20 feet; distance = 180 feet). Also, when sounds from the
direct source & delayed source reach the listener at roughly the same volume level, additional delay (approximately 10~30 milliseconds)
may be added to the calculated delay time. This added delay will produce what is known as the ‘Haas Effect’, which gives the listener the
impression that all sound is emanating from the direct source. This added delay should be fine-tuned by ear to achieve the desired results.
Bypass
allows delay times to instead be entered & calculated in terms of distance measurements (inches, feet, centimeters, or
temporarily sets delay time for the correspnding Output to minimum (1.333 msec).
buttons change the delay time in 1 milli-second increments. Fine buttons change the delay
between direct and delayed sound sources, with respect to the
9
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’. Logic Inputs
Inputs are controlled by switches, contact-closures, etc., each Logic Input may be assigned certain actions to perform when the switch is
‘opened’, and different actions to perform when that same switch is ‘closed’. Binary Mode
can also be defined. This allows certain actions to be performed only when a specified condition of open/closed Logic Inputs exists within
the group. When a Binary Mode is selected, indicators for the chosen group of Logic Inputs will appear below. Binary Combination
selects the specific combination of open/closed (on/off) Logic Inputs that needs to exist (for the assigned actions to be performed). When a
combination is selected, indicators will light (red) to designate which of the Logic Inputs within the group are closed (on) for that condition.
NOTE: When a Binary Mode is selected, the chosen group of Logic Inputs can no longer be defined individually. It is not necessary to
select a Binary Mode when simply defining individual Logic Inputs. Power-Up Actions
NMP200 to perform each time power is turned on. Echo Character
NMP200 Serial Port whenever the selected Logic Input is switched. NOTE: From the factory, no echo characters are assigned to the
Logic Inputs. Echo Characters are used primarily for customizing remote control commands amongst various RS-232 controlled products
within a system (see RS-232 Control on pg. 14). Store System Preset
selected Logic Input. Temp Presets A~D allow current settings of the NMP200 to be temporarily stored in memory. Temp Presets are
useful when re-establishing settings which existed prior to a change. For example: recalling settings for noise masking, after paging has
occurred. Recall System Preset
NOTE: System Preset actions affect settings from all stages of the NMP200 (Inputs, Gain Matrix #1, Gain Manager, EQ, Gain Matrix #2,
Delay, & Outputs). However, the settings that Presets 1~16, and Temp Presets A~D, store for specific stages of the NMP200 may be
recalled independently. Input/Noise Gain
Output 1/2 Gain
Logic Input. For example: two independent processing channels, each with independent preset selection. Output 1/2 Gain
various output volume & muting actions to be assigned to the selected Logic Input. Clear
Input (or all Logic Inputs) to be cleared. Help
allow recall actions for their respective portions of Presets 1~16, and Temp Presets A~D, to be assigned to the selected
allows recall actions for Presets 1~16, and Temp Presets A~D, to be assigned to the selected Logic Input.
, Gain Matrix #1, Output 1/2 Gain Manager, Output 1/2 EQ, Gain Matrix #2, Output 1/2 Delay, and
provides additional instruction. Close will close the Logic Input Definition screen.
selects which Logic Input is to be defined. NOTE: Since Logic
selects the RS-232 ASCII character which will be transmitted via the
allows store actions for Temp Presets A~D to be assigned to the
selects a special group of Logic Inputs which
allows specific actions to be assigned for the
allows all actions assigned to the selected Logic
then
also allow
10
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
are
utilizing these types of push-button remote controls. From the factory, Remote Control Buttons have equivalent ASCII characters
®
products which
permanently assigned to them (see RS-232 Control on pg. 14). Therefore, a Remote Control Button can be assigned specific ‘actions’,
which the NMP200 will then perform whenever the equivalent ASCII character for that button is received. From the factory, Remote
Control Buttons have no pre-programmed functions. However, using the Button Definitions screen, each Remote Control Button may be
assigned various ‘actions’. Remote Control Buttons
selects which button is to be defined. Actions can then be assigned to the selected
Remote Control Button in the same way they are assigned to Logic Inputs (see Logic Input Definition Screen on previous page). Clear
allows all actions assigned to the selected Remote Control Button (or all Remote Control Buttons) to be cleared. Help
instruction. Close
will close the Button Definition screen.
provides additional
11
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. Device Name
allows a custom name to be given to the particular NMP200, by entering up to 30 characters of text.
The Device Name will be stored in the NMP200 memory, and will be displayed on the title bar of the Main screen whenever that NMP200 is
accessed with the software. Device Number
multiple NMP200 (or other ADVANTAGE
numbers must be assigned to each device before the devices are linked together. Temperature
used in calculating Velocity of Sound
distance/delay calculations for the Delay section. Set Password
allows a device number (0~63) to be assigned to the currently active NMP200. This allows
®
programmable products) to be individually controlled when linked together. Unique device
selects the desired air temperature to be
(seen below). Temperature, and the resultant Velocity of Sound, are global parameters which affect
allows the NMP200 to be assigned a password (up to seven characters),
which will then be required before any future software communication with that unit is allowed. NOTE: When multiple programmable
products are connected in a system configuration (via Serial & Link Ports), it is strongly recommended that only one unit in the system be
assigned a password. A single unit having a password will prevent software communication with all units in the system. Communication
with other units will still be possible, but only by first dis-connecting them from the unit which has been assigned a password. Help
provides additional instruction. Close
will close the Configuration Options screen.
12
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
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). Since Logic Inputs are controlled by switches, contact-
closures, etc., each Logic Input may be assigned two functions (one for switch ‘closed’ and one for switch ‘open’).
Logic Inputs have the following pin assignments
(right-to-left & top-to-bottom): Pins 1~16) Logic Inputs 1~16; Pins 17~25) Ground.
13 1
logic inputs pin numbers
via
25 14
logic inputs
logic #1~16
ground
pin #1~16
pin #17~25
When nothing is connected to a Logic Input, an internal pull-up resistor keeps it at a ‘high’ idle state (+5.0 VDC). The Logic Input is
activated when its input goes ‘low’ (less than +0.8 VDC), and is de-activated when its input goes ‘high’ (greater than +2.4 VDC). A Logic
Input is controlled in one of three ways: 1) Use an NPN style ‘open-collector’ logic output from an external device (such as another
ADVANTAGE
®
product or third-party controller) to short the Logic Input to ground. 2) Use a switch, relay, or other contact-closure (such
as from a third-party controller) to short the Logic Input to ground. 3) Use an active TTL output driver circuit (such as from a third-party
controller) to actively drive the Logic Input to a ‘high’ or ‘low’ state.
Multiple contact-closures or ‘open-collector’ logic outputs may be wired in parallel to a single Logic Input (see diagram below). Logic
Outputs and contact-closures should be rated for at least 5 Volts / 1mA operation. Low-current / dry-contact closures are recommended
for reliability. Active output driver circuits should not exceed a signal range of 0~5 Volts DC, and should have a minimum pulse width of
100 milli-seconds. Logic Input impedances are approximately 10k ohms.
multiple switches to single Logic Input
13 1
25 14
13
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. Although the NMP200 does not accept infrared or wall-mount remote controls itself, it can still receive ASCII characters (via RS-
232) which emulate the buttons on these types of remote controls. From the factory, remote control buttons have equivalent ASCII
characters permanently assigned to them (see table below). Therefore, actions can be assigned to remote control buttons in the same
way they are assigned to Logic Inputs. Then, using this method, the computer can output ASCII characters which are equivalent to the
commands generated by those standard remote control buttons. Control Button Emulation allows the computer to utilize up to forty button
definitions (unlike standard remote controls, which have only twenty-eight buttons). When using up
Button Emulation also allows the computer to designate which device or devices should react to each control button command.
Advanced Computer Control: This method provides advanced commands, which allow the computer to retrieve or edit various NMP200
settings. The computer may also emulate control buttons. Using this method, the computer may designate up
may also provide ‘real-time’ display of various settings.
This manual only describes the Control Button Emulation method of computer control. For complete details about using the NMP200 with
a computer, including Advanced Computer Control, contact Biamp Systems for manual "Computer
Each control button on an infrared transmitter or wall-mount control panel corresponds to one character in the standard ASCII character
set. The character equivalents are summarized in the following table. This table includes all forty possible buttons, their button numbers,
their ASCII code equivalents, and their factory default button definitions (no operation assigned).
button 01 B no operation assigned button 15 P no operation assigned button 29 ^ no operation assigned
button 02 C no operation assigned button 16 Q no operation assigned but t on 30 _ no operat i on assigned
button 03 D no operation assigned button 17 R no operation assigned button 31 ’ no operation as signed
button 04 E no operation assigned button 18 S no operation assigned button 32 b no operation assigned
button 05 F no operation assigned button 19 T no operat i on assigned button 33 c no operation assigned
button 06 G no operation assigned button 20 U no operation assigned but t on 34 d no operat i on assigned
button 07 H no operation assigned button 21 V no operation assigned but ton 35 e no operation assigned
button 08 I no operation assigned button 22 W no operation assigned button 36 f no operation assigned
button 09 J no operation assigned button 23 X no operation assigned button 37 g no operati on assigned
button 10 K no operation assigned button 24 Y no operation assigned button 38 h no operation assigned
button 11 L no operation assigned button 25 Z no operation assigned button 39 i no operation assigned
button 12 M no operation assigned button 26 [ no operation assigned button 40 j no operation as signed
button 13 N no operation assigned button 27 \ no operation assigned
button 14 O no operation assigned button 28 ] no operation assigned
The computer can initiate any functions or actions that a standard control can, by simply transmitting the equivalent control button ASCII
character. When interfacing the NMP200 to a computer, the computer must be aware that the NMP200 will ‘echo’ all characters it receives
(both from computer and Logic Inputs) via the Serial Port Transmit Data (TXD) output signal. However, from the factory, the NMP200
Logic inputs are programmed with no ‘echo character’ assigned to them.
to four devices in a system, Control
to sixty-four devices, and
Control of ADVANTAGE® NMP200 ".
14
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. NOTE: The Serial Port may also transmit commands which
are received via the Logic Inputs, depending upon the echo character assignments (see Setup on pg. 10).
54321
pin #1 = not used
pin #2 = Receive Data (RxD) input
pin #3 = Transmit Data (TxD) output
9876
pin #4 = Data Terminal Ready (DTR) output
pin #5 = ground
pin #6 = not used
pin #7 = Request To Send (RTS) output
pin #8 = not used
pin #9 = not used
serial port
The NMP200 only requires receive data (pin 2), transmit data (pin 3), and signal ground (pin 5) to be connected for successful data
communications (see cable diagram below). However, the PC may require that signals be present on the data set ready, clear to send, or
carrier detect inputs, as well as the receive data, transmit data, and signal ground pins. Success or failure depends entirely on the actual
computer hardware and software being used. When trying to solve an interfacing problem, the most important thing to remember is that an
output of one device should connect to one or more inputs of the other device, and that two outputs should never be connected together.
Also, keep in mind that the RS-232 specification calls for the cable length to be no greater than 50 feet (although it is not unusual to be
able to operate over distances of 150 to 250 feet), and the connectors must be of the appropriate gender (male or female) to mate
properly. For best results, a shielded cable should be used, with the shield connected to chassis ground. Since the NMP200 serial
interface ground is also tied (indirectly) to the analog signal ground, undesirable ground loops may occur when the NMP200 is connected
to a PC (if the system grounding is not carefully designed). For best performance, the PC ground and the chassis ground of the NMP200
should be at the same potential, and the PC should get AC power from the same source as the NMP200 (and any other audio equipment
which is connected to the NMP200). Since most lap-top computers are isolated from earth ground, this should rarely pose a problem.
Serial Port Data Communications Parameters: The NMP200 communicates through the Serial Port at the factory selected rate of
38400 bits per second, with 8 data bits, 1 stop bit, and no parity. The NMP200 utilizes a subset of the standard 7-bit ASCII character set.
The eighth data bit of each character (the most significant bit) should always be 0. The computer should not echo the characters it
receives. The computer should not be set for either hardware (DTR) or software (XON/XOFF) flow control. The baud rate may be
changed to either 2400, 9600, or 19200 bits per second by means of the software (see Setup on pg. 3). NOTE: Baud rate may need to be
changed when the NMP200 is being used in RS-232 systems with other products having a lower maximum baud rate.
Link Port Connections: The 9-pin Sub-D (female) connector on the NMP200 rear panel provides the RS-232 compatible serial interface
signals used for linking multiple ADVANTAGE
®
products within a system. The Link Port of one device simply connects to the Serial Port of
the next device, and so forth (see diagram below). Link cables are available as an option (Biamp #909-0057-00). NOTE: All but the final
device in a system should have its ‘Link’
switch pressed in (see Front & Rear Panel Features on pg. 2). The Link Port may also transmit
commands which are received via the Logic Inputs, depending upon the echo character assignments (see Setup on pg. 10).
12345
pin #1 = not used
pin #2 = Transmit Data (TxD) output
pin #3 = Receive Data (RxD) input
6789
pin #4 = not used
pin #6 = not used
pin #7 = not used
pin #8 = not used
pin #9 = not used
pin #5 = ground
link port
PC
CD
RxD
TxD
DTR
gnd
DSR
RTS
CTS
RI
serial port
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
male female
Serial Cable
(shield)
serial port
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
female male
NMP200
n/a
RxD
TxD
DTR
gnd
n/a
RTS
n/a
n/a
NMP200
n/a
TxD
RxD
n/a
gnd
n/a
n/a
n/a
n/a
link port
1
2
3
4
5
6
7
8
9
female male
1
2
3
4
5
6
7
8
9
Link Cable
(shield)
serial port
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
female male
unit 2
n/a
RxD
TxD
DTR
gnd
n/a
RTS
n/a
n/a
15
APPLICATIONS
Courtroom System
Noise-Masking, Recording, & Conferencing
judge's
sidebar/
masking
switch
DMD
BIAMP SYSTEMS
Portland, Oregon
an affiliate of
Rauland-Borg Corp.
MADE IN U.S.A.
autoONE
27V
~
50/60 Hz
DC out
15 watts
class 2 wiring
±12VDC
VOICECRAFTER
BIAMP SYSTEMS
27V
~
Portland, Oregon
50/60 Hz
an affiliate of
Rauland-Borg Corp.
12 watts
class 2 wiring
MADE IN U.S.A.
setup
control
DMD
BIAMP SYSTEMS
Portland, Oregon
Rauland-Borg Corp.
MADE IN U.S.A.
an affiliate of
phone line
2-wire interface
out in
--++
DC out DC in
12V
PS
BIAMP SYSTEMS
Portland, Oregon
an affiliate of
Rauland-Borg Corp.
outputs
logic
main out
main aux stack in
expansion
codec
level
aux inaux out
codec out codec in mic 1
outputs
0dB
-20dB
mic 2
conferencing feeds
out in
--++
DC out DC in
patch in/out
4
main patch
trimlevel
+10
patch in/out
4
ON
slave
-12db
hp filter
last mic
trim
+10
patch
pad
aux off
ungated
aux post
phantom
patch pre
VOICECRAFTER
out in
--++
patch
input
pad
8
out in
--++
ungated
phantom
duck ch8
patch in/out
3
input
7
patch pre
patch in/out
3
patch
pad
ungated
phantom
input
duck ch8
patch pre
out in
--++
defense
patch
pad
ungated
phantom
6
evidence
playback
out in
--++
out in
--++
patch in/out
2
prosec.
patch in/out
1
sidebar
judge
4-track
court
patch
pad
ungated
phantom
duck ch8
patch pre
patch in/out
2
patch
input
input
pad
ungated
phantom
4
3
duck ch8
patch pre
out in
--++
input
5
duck ch8
patch pre
patch
input
pad
ungated
phantom
2
duck ch8
patch pre
witness
patch in/out
1
patch
input
ONONONONONONONON
pad
ungated
phantom
1
duck ch8
patch pre
jury
recorder
delayed
audience
area
speakers
NMP200
27V
50/60 Hz
12 watts
class 2 wiring
~
serial port
link port link
logic inputs
input
output 1output 2
NMP200
BIAMP SYSTEMS
Portland, Oregon
an affiliate of
Rauland-Borg Corp.
MADE IN U.S.A.
CPA130
level 2
115V: 3A SB
230V: 1.5A SB
USE ONLY WITH
115/230 VAC
250V FUSE
DT-2A DT-2A
50/60 Hz
110V
300 Watts max
input 1input 2
gnd---+ + gnd---
output 2
--- + + ---
output 1
level 1
stereo
mono bridge
ADVANTAGE
CPA 130
MADE IN U.S.A.
16
bench
area
speakers
APPLICATIONS
Office System
Noise-Masking & Zone Paging
page
routing
panels
emergency
alarm
signal
telephone
all-call
zone 1
zone 2
all-call
zone 1
zone 2
all-call
VRAM
27V
~
50/60 Hz
27 watts
class 2 wiring
page/masking
preset selection
NMP200
27V
~
50/60 Hz
12 watts
class 2 wiring
page
source
selection
serial port
logic outputs
link port link expansion
logic inputs
serial port
link port link
logic inputs
out
in
auxmain aux 2 aux 1
outputs auxiliary inputs
vox-relayvox-relay
input
input
input
d. out
channel 8
channel 7
input
output 1output 2
input
d. out
d. out
channel 6
channel 5
input
d. out
channel 4
NMP200
paging
mic 2
input
d. out
channel 3
paging
mic 1
input
input
d. out
d. out
d. out
channel 2
channel 1
BIAMP SYSTEMS
Portland, Oregon
an affiliate of
Rauland-Borg Corp.
MADE IN U.S.A.
zone 2
speakers
CPA650
level 2 level 1
Ω
4 operation: use 5A NB
Ω
8 operation: use 3A NB
F
F
E
E
U
U
S
S
S
U
U
S
E
F
F
DT-1A DT-1A
E
speaker fuse 2 speaker fuse 1
CAUTION:
To reduce the risk of fire, replace
only with same type 8A SB fuse.
F
E
F
E
U
S
S
U
S
U
U
S
E
F
F
E
E17934
AC Fuse
50/60 Hz 1500 Watts max
input 2 input 1
325W/4Ω 325W/4Ω
output 2 output 1
class 2 wiring acceptable
120 VAC
gnd---+ + gnd---
normal
LISTED 989M
COMMERCIAL
U
.
L
AUDIO EQUIP.
++--- ---
ground
lift
Ω
4 operation: use 5A NB
Ω
8 operation: use 3A NB
F
E
F
E
U
S
S
U
S
U
U
S
E
E
F
F
mono bridge
stereo
ADVANTAGE
CPA 650
MADE IN U.S.A.
17
zone 1
speakers
SPECIFICATIONS & BLOCK DIAGRAM
Frequency Response (20Hz~20kHz @ +4dBu) : +0/-0.5dB Sampling Rate: 48kHz
THD+Noise (20Hz~20kHz @ +4dBu) : < 0.002% A/D & D/A Converters: 128x oversampled 24-bit sigma delta
Dynamic Range (20Hz~20kHz): > 100dB Power Consumption: < 15 watts
Maximum Gain: 20dB Dimensions:
Input Impedance (balanced): 20k ohms height (1 rack space) 1.75” (44mm)
Maximum Input (balanced): +24dBu width 19” (483mm)
Output Impedance (balanced): 200 ohms depth 7” (178mm)
Maximum Output (balanced): +24dBu Weight: 4.5 lbs. (2.04kg)
Input 1
receive
link port
internal
pink-noise
generator
send
gain
RS-232
serial
port
A/D
NMP200 Block Diagram
matrix matrix
gain
manager
gain
manager
Digital Signal Processing Blocks
equalizer delay
equalizer delay
D/A
Output 1
gain
Output 2
gainA/D D/Again
logic inputs
18
WARRANTY
BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR
LIMITED W A RRANTY 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. In the event the warranted BIAMP Systems product
requires service during the warranty period, BIAMP
Systems will repair or replace, at its option, defective
materials, provided you have identified yourself as the
original purchaser of the product to any authorized
BIAMP Systems Service Center. Transportation and
insurance charges to and from an authorized Service
Center or the BIAMP Systems factory for warranted
products or components thereof to obtain repairs shall
be the responsibility of the purchaser.
2. This warranty will be VOIDED if the serial number
has been removed or defaced; or if the product has
been subjected to accidental damage, abuse, rental
usage, alterations, or attempted repair by any person
not authorized by BIAMP Systems to make repairs; or
if the product has been installed contrary to BIAMP
Systems’s recommendations.
3. Electro-mechanical fans, electrolytic capacitors,
and the normal wear and tear of appearance items
such as paint, knobs, handles, and covers are not
covered under this warranty.
4. BIAMP SYSTEMS SHALL NOT IN ANY EVENT BE
LIABLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, INCLUDING LOST
PROFITS, LOSS OF USE, PROPERT Y DAMAGE, INJURY
TO GOODWILL, OR OTHER ECONOMIC LOSS OF ANY
SORT. EXCEPT AS EXPRESSLY PROVIDED HEREIN,
BIAMP SYSTEMS DISCLAIMS ALL OT HER LIABILITY TO
PURCHASER OR ANY OTHER PERSONS ARISING OUT
OF USE OR PERFORMANCE OF THE PRODUCT,
INCLUDING LIABILITY FOR NEGLIGENCE OR STRICT
LIABILITY IN TORT.
5. THIS WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES EXPRESSED OR IMPLIED. BIAMP
SYSTEMS EXPRESSLY DISCLAIMS ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. THE REMEDIES SET
FORTH HEREIN SHALL BE THE PURCHASER’S SOLE
AND EXCLUSIVE REMEDIES WITH RESPECT TO ANY
DEFECTIVE PRODUCT. THE AGENTS, EMPLOYEES,
DISTRIBUTORS, AND DEALERS OF BIAMP SYSTEMS
ARE NOT AUTHORIZED TO MODIF Y THIS WARRANTY
OR TO MAKE ADDITIONAL WARRANTIES BINDING ON
BIAMP SYSTEMS. ACCORDINGLY, ADDITIONAL
STATEMENTS SUCH AS DEALER ADVERTISEMENTS
OR REPRESENTATIONS DO NOT CONSTITUTE
WARRANTIES BY BIAMP SYSTEMS.
6. No action for breach of this warranty may be
commenced more than one year after the expiration of this
warranty.
Thank you for purchasing BIAMP SYSTEMS...
AMERICAN SOUND CRAFTSMANSHIP
Biamp Systems
10074 S.W. Arctic Drive
Beaverton, Oregon 97005
(503) 641-7287
http://www.biamp.com
585.0173.00
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.
Product Model: ADVANTAGE
Product Description: Noise Masking Processor
Applicable EC Directives: EMC Directive (89/336/EEC), LVD Directive (73/ 23/ EEC)
Applicable Harmonized Standards: EN55103-1 emissions EN55103-2 immunity EN60065 safety
Special Considerations for Product Environment or Com pliance:
Shielded cabling must be used for system connections. The apparatus is deemed incapable of
producing harmonic emissions or flicker levels sufficient enough t o int er fere with other apparatus as
noted in EN61000-3-2 and EN61000-3-3.
This apparatus operates from a removeable external power source at voltages below the levels
encompassed by the LVD. The external power source complies with the applicable requirement s of
EN60065. The apparatus itself is outside of the scope of the LVD and presents no hazardous voltages,
as defined in the LVD. For compliance, the appar at u s shall be powered only fr om the separate CE
marked Biamp Systems power source.
RF interference conducted through interconnect cabling may cause varying degrees of random signal
degradation. The effect of increased noise or distor t ion due t o t his interference is typically masked by
the desired signal. In no instance is operation inhibit ed.
The Technical Report/File is maintained at : Biamp Systems, Inc.
10074 S.W. Arctic Drive
Beaverton, OR USA 97005
phone: (503) 641-7287 fax: (503) 626-0281
e-mail: biamp@biamp.com
Authorized Representative: Steven Hedgepeth
Authorized Representative Signature:
Issued: June, 2000
NMP200
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