Toa NX-100 Overview
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Toa NX-100 Overview

Network audio adapter
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Download this manual See also: Cookbook, Operating Manual
NX-100 Network Audio Overview

Introduction

The NX-100 Network Audio Adapter converts an analog audio signal to digital packets for transport over
IP-based networks to other network-connected NX-100's for conversion back to analog. The NX-100
significantly reduces installation and operational costs when distributing audio signals to multiple remote
locations by allowing the use of existing data networks (LAN, WAN and the Internet). Applications include
paging, messaging and background music distribution in airports, corporate campuses, transit systems
and many others.
The NX-100 can simultaneously send and receive audio to/from single or multiple NX-100's at remote
locations. In addition to the audio stream, the NX-100 can simultaneously transport RS-232 serial data
and contact closures for remote control of peripheral equipment.

Transmission Method

Each NX-100 has a fixed MAC address and requires a static IP address. Each NX-100 communicates
with single or multiple NX-100's in Unicast or Multicast modes. In Unicast mode, the NX-100 can send up
to four identical streams to up to four NX-100's over LAN, WAN or the Internet. In Multicast mode, the NX-
100 can send a single stream to up to sixty-four NX-100's within a multicast-capable LAN or WAN.

Front and Rear Panel Features

The NX-100 front panel includes Link/Activity, Full-Duplex/Collision, Status, Error and Run LED indicators
plus a recessed hardware Reset button.
The NX-100 rear panel includes a balanced mic/line input with adjustable volume control and a balanced
line output. A standard Ethernet port (10/100BaseT) allows connection to Ethernet-based network hubs or
switches. An RS-232 serial port is configurable as a TCP client/server or for UDP data transport with
adjustable baud rate up to 115200 bps. Eight programmable contact inputs can be used to trigger
Broadcast Patterns (described below) as well as activate single or multiple contact outputs on remote NX-
100's. The NX-100 is powered with the AD-246 AC adapter or external 24 VDC power supply. Alternative
versions of the AD-246 are available for worldwide use.

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Summary of Contents for Toa NX-100

  • Page 1 NX-100’s in Unicast or Multicast modes. In Unicast mode, the NX-100 can send up to four identical streams to up to four NX-100’s over LAN, WAN or the Internet. In Multicast mode, the NX- 100 can send a single stream to up to sixty-four NX-100’s within a multicast-capable LAN or WAN.
  • Page 2 Sampling Rates and Audio Quality The NX-100 provides three audio quality modes: 50 Hz to 14 kHz (32 kHz sampling), 50 Hz to 8 kHz (16 kHz sampling) and 50 Hz to 4 kHz (8 kHz sampling) — analogous to FM radio, AM radio and telephone quality respectively.
  • Page 3 For WAN or Internet applications, units can be designated to transmit or receive sampling frequency correction data. Operation Status and Logs With the browser-based software, you can log into the NX-100, view and save Operation Log data and view Operation Status of connected unit(s). Security Settings Both the Java and browser-based software have customizable user name and password protection.

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