In Broadcast - December 2011/January 2012 - 94

InAUDIO
NTP Technology Launches Penta 725 IP Audio Router
NTP Technology’s new Penta 725 IP audio router enables audio routing over IP based Gigabit Ethernet with linear PCM audio quality and sub-millisecond latency. Housed in a compact 1 RU high 19 inch chassis, the router has a capacity of 1024 x 1024 “Internet bandwidth is increasing in many countries, giving broadcasters the option of using far more cost-efficient IP-based networking in place of traditional leased telco lines,” said NTP Technology Sales Director Mikael Vest. can be combined to handle a total of 512 channels on a 1 gigabit/s network. Larger systems can be integrated where greater network capacity is available. Each audio channel can be deployed as router input/output connections or to connect with extra Penta 725 IP programme schedules.” IP audio entering or leaving the PENTA 725 IP router can be interfaced on a PC platform by using a dedicated Ethernet sound card or its virtual equivalent. The VMC control software is used to select a monitor source which can be made directly available for highquality/low-latency monitoring. Two RJ45 Cat 6 Gigabit Ethernet connectors are available on the PENTA 725 IP for fully redundant connection. Control and IP audio data are transmitted on the same IP connection, enabling in-band control of additional IP audio nodes as well as control via theNTP Router Control System RCCoreV3 on the same network. The Penta 725 IP is equipped with redundant power supply. A redundant IP Matrix core module is optional.

NTP Technology’s Penta 725 IP Audio Router

crosspoints and can accommodate 64 bi-directional channels via IP. It can also be populated to handle 64 AES3 input/output channels, six optical MADI channels and optional sampling-rate converters interfaces.

“The Penta 725 IP combines standard time-division multiplex routing with the ability to interface audio via Gigabit Ethernet. It can route the audio in the networks using standard switches. “Additional Penta 725 IP systems

units. “All switching on the IP network is controlled by NTP Technology’s RCCore router control system. Connections are managed by our VMC control surface. Changes can be made dynamically to match

China Radio International Orders 32 NTP Digital Audio Routers
NTP Technology has announced the delivery of 32 digital audio routing systems to China Radio International (CRI), the external voice of the People’s Republic of China. This latest order includes two NTP Penta 625 MADI and 30 Penta 725 systems which will be installed at CRI’s Beijing headquarters. The purchase was negotiated by NTP’s China reseller, Beijing Infomedia Digital Technology. CRI is one of the three state-owned media in the People’s Republic of China along with China National Radio and China Central Television. “One of the Penta 625 MADI routers together with eight of the Penta 725 routers will be configured as the main core system,” comments Wang Juntao, Director of CRI’s Programme OnAir Department. “The second 625 and a further eight 725 routers will form a secondary or redundant core. Both these systems will be located in a machine room close to the master control room. Our headquarters building has 15 floors, each with four studios. A Penta 725 will be located on each of the other 14 floors, serving as an input and output node. The new routers will replace an existing NTP 625-100D 128-square audio matrix which has performed reliably for many years. We are very pleased with the new equipment and the professional way in which NTP has handled the project. It is a big advantage that the new routers are operationally similar to our existing audio matrix.” The NTP 625 MADI router consists of a 2048 x 2048 crosspoint MADI router in a single 19 inch frame and incorporates a dual controller and dual power supply unit. Up to 18 MADI cards with four MADI input and output interfaces can be accommodated. Each frame has a TDM bus capacity of 2048 channels at 48 kHz sampling rate. Two frames can be interconnected via NTP XBus for a total of 3072 channels. A typical 2048 x 2028 MADI routing configuration requires eight MADI interface cards. The frame can alternatively be configured with analogue and digital AES3 cards. The router is controlled and supervised via TCP/IP and UDP using NTP’s Router Control System

Pan Tao (Engineer of CRI’s Programme On-Air Department), Wang Juntao (Director of CRI’s Programme On-Air Department), Kim Vangsgaard (NTP Senior System Engineer), Mikael Vest and CRI Engineers Wei Nan and Wei Hongli

(RCS). The controller is an integral part of the router hardware and can be accessed via NTP Visual Matrix Control client software. NTP’s Penta 725 is a compact modular audio router accommodating up to 384 x 384 crosspoints with AES3 and optical MADI interfaces. Based on a 1 RU 19 inch chassis and controlled via TCP/IP, it is available with a variety

of software modules. Up to 64 AES3 stereo and four MADI inputs/ outputs can be accessed for interfacing digital audio sources. Two high-speed bi-directional links are available for connection to NTP 625 or additional Penta 725 systems. An AES3 monitor output is available for monitoring of inputs and outputs. Router settings can be controlled via TCP/IP.

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In Broadcast - December 2011/January 2012

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