JPS Communications Introduces NXU-2A Network Extension Unit

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Raytheon Company’s JPS Communications announces the NXU-2A, a new device that replaces its legacy NXU-2 Network eXtension Unit. The NXU-2A uses radio over Internet protocol (RoIP) and voice over Internet protocol (VoIP) technology to send and receive digital voice messages. The NXU-2A’s new features are advantageous to trunking applications, handset users and customers who use multiple NXU-2s. The NXU-2A Network eXtension Unit is a general purpose, standalone device that connects communication equipment to a digital network (local area network, wide area network or Internet) using RoIP technology. It is intended for use with radios, radio communication consoles, and JPS products such as the ACU-1000 Interconnect Unit and the SNV-12 Signal-and-Noise Voter.

The NXU-2A’s new features include the ability to delay transmit (TX) and receive (RX) audio, voice modulation recognition (VMR), support of multicast IP and quality of service (QoS), a selectable 20 decibel gain boost on audio input, and a "restore to factory defaults" setting.

The NXU-2A’s ability to delay TX and RX audio is ideal for trunking applications where extra delay may be required. The NXU-2A’s added ability to support multicast Internet protocol (IP) is suited for customers who use multiple NXUs. Multicast IP reduces the amount of network traffic, which ensures that each unit in the multicast group will receive communication.

The NXU-2A’s additional hardware offerings include VMR and a "restore to factory defaults" setting. VMR, as with carrier operated relay (COR) and voice operated transmit (VOX) capabilities, determines when a radio’s squelch function is active. The ability to reset the NXU-2A to a well-defined factory default state overcomes the problem of unknown or forgotten IP addresses.

QoS support allows operators to assign a priority level to RoIP data over other types of data. For example, if the network is over-utilized, NXU data will take priority and voice communication will be transmitted first. An additional gain boost of +20 decibels will enhance the received audio and will compensate for low drive level devices such as handsets or microphones.

The NXU-2A, with the same RoIP and VoIP features of the NXU-2, is available in limited supply.

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