TOA NM-01 AM Installation Guide

NM

-01

Mute

Switch

Supplied RCA Cable

Output

Input

External

Processor

Mute Switch

INSTALLATION MANUAL

NOISE MASKING MODULE

1. GENERAL DESCRIPTION

The NM-01 is a noise masking module to be used in conjunction with TOA’s 9000M2, 900, 700 and BG-2000 series
amplifiers. This module generates a noise source to be used for sound masking and audio privacy applications. Such
applications include open-plan office environments or smaller spaces where distracting or private conversations need
to be made unintelligible. The module allows connection of optional external signal processing equipment (e.g. an
equalizer), as required. A simple contact allows for muting of this noise source, if desired.

2. CONNECTIONS

An external mute switch and/or an external processor can be connected as options. (The right side pin of the 3P
terminal block is not used.)

<When using without an external processor>

<When using with an external processor>

3. SPECIFICATIONS

Power Source 24 V DC (Supplied from amplifier)
Current Consumption 10mA
Output Level (to amplifier) 300mV
Noise Type Analog random pink noise
Mute Function Dry contact, normally open (close to mute)
Input 10kΩ, RCA pin jack
Output 150mV, 600Ω, RCA pin jack
Dimensions 35(W) x 78(H) x 88(D)mm (1.38” x 3.07” x 3.46”)
Weight 64g (0.14lb)
Supplied Accessary Stereo RCA cable

NM-01

MUTE

IN

78mm (3.07”)

OUT

35mm (1.38”) 88mm (3.46”)