Network Device uses RoIP and VoIP technology.

Press Release Summary:

Model NXU-2A Network eXtension Unit sends and receives digital voice messages, and has ability to delay transmit and receive audio. Unit is suitable for use with radios, radio communication consoles, ACU-1000 Interconnect Unit, and SNV-12 Signal-and-Noise Voter. Device features voice modulation recognition (VMR), support of multicast IP and quality of service (QoS), selectable 20 dB gain boost on audio input, and restore-to-factory-defaults setting functionality.

Original Press Release:

JPS Communications Introduces NXU-2A Network Extension Unit

RALEIGH, N.C., (March 8, 2006) - Raytheon Company's JPS Communications, a leader in interoperability technology, 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 new unit costs $595.

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 optimal 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 monitors its network connection and adjusts its parameters automatically, so that it provides optimal performance under varying network conditions," said Doug Hall, Raytheon's JPS Communications senior scientist. "This is important to customers who use our VoIP products for critical applications in which system performance and network availability are essential. The new module ensures that data transmissions are uncompromised by changing network conditions."

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

JPS Communications, a wholly owned subsidiary of the Raytheon Company, designs, manufactures and sells electronic hardware and software products that enhance the effectiveness of communications systems. The company offers unsurpassed local, regional, state, and wide-area interoperability by directly connecting or networking any of the following devices: HF, UHF, and VHF radios along with Nextel, satellite communication, cellular, WiFi and digital land line telephones.

Raytheon Company (NYSE: RTN), with 2005 sales of $21.9 billion, is an industry leader in defense and government electronics, space, information technology, technical services, and business and special mission aircraft. With headquarters in Waltham, Mass., Raytheon employs 80,000 people worldwide.

For more information, please contact JPS Sales at (919) 790-1011; e-mail or visit our website at

Katie Willis

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