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Audio can simply be transmitted as IP packets via a router or an intelligent switch. Without any network delay, the audio broadcasts will only experience delay times as minimal as tens of milliseconds. The NX-100/NX-100S incorporates efficient ''sub-band ADPCM'' audio compression technology that preserves delicate musical instrument nuances and allows the emotional content of a person's speech to be transmitted as well. Malfunctions and emergency signals and other sounds can also be accurately monitored and evaluated thanks to the high level of fidelity. If a higher level of audio performance is required, the NX-100 will also uncompress (PCM) audio transmission. Sampling frequency transmission rates can be selected at 8kHz, 16kHz, or 32kHz to best suit the transmission frequency range. The NX-100/NX-100S supports NAT and IP Masquerade (IPMASQ or MASQ) networking which present technological difficulties to conventional VoIP (Voice over IP) technology and protocols such as H.323 and SIP. These advanced abilities of the NX-100/NX-100S result in dramatic cost savings for both installation and operational costs. The NX-100/NX100S employs three modes that are employed to recover lost packets. Both also adjust sampling frequencies at the sending and receiving ends so that uninterrupted continuous broadcasting may be possible for long hours even if communication interference should occur on the network. A single NX-100/NX-100S unit can simultaneously transmit audio signals to a maximum of 4 locations in the Unicast mode and to up to 64 locations in the Multicast mode. This makes it possible to effectively perform company-wide broadcasting and also to integrate broadcast diffusion functions. Every NX-100/NX-100S is equipped with independent audio input and output connectors that can be operating simultaneously, allowing use as a broadcast monitor or as a communication device responding to the location receiving the broadcast. Control input signals as well as audio signals can easily be transmitted to remote locations. The signals can be employed for power on/off control of the PA amplifier which receives the voice output. In addition, other useful tasks include broadcasting start using the sensor or timer, activating an external music source and selecting the broadcasting area for each of the input terminals. Multiple NX-100/NX-100S units can be operated via an IP network employing the supplied operation software and broadcasting can also be initiated and terminated using the input terminals for the maximum operational reliability of a hardware solution. A full system can be assembled without including a single PC. Supplied setup software makes it easy to perform routine tasks such as changing settings, checking operational status, and updating firmware for all NX-100/NX-100S units on a network. The NX-100/X-100S is an exceptionally low maintenance product, even allowing any PC without setup software installed to complete tasks via web browser for individual NX-100/NX-100S units. The NX-100S is equipped with an indicator for audio input signal as well as a peak overload indicator, allowing at-a-glance visual confirmation of status. In addition, the NX-100S also provides phantom power on the audio inputs.
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