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10GEPON reference designsTwo 10GEPON reference designs, the PAS8001 OLT and PAS9001 ONT, have been created for central office optical line terminals (OLTs) and premises optical network units (ONUs). The chip functions in each design reside on a pair of FPGAs and support asymmetric (10 Gbit/s downstream, 1 Gbit/s upstream) transmission along the lines of the specifications expected to be contained in the 10G EPON standard. The chips also support the XFI interface used with XFP optical transceivers. The devices offer auto-detect, standard encryption, and backwards-compatible dynamic bandwidth allocation and include optical transceivers.PMC-Sierra Inc., www.pmc-sierra.com

The UV15-7DC is a high-performance system designed for bonding, sealing, and coating applications. It is 100% reactive, does not contain any solvents, and is not inhibited by air. Typical UV cure times range from 5 s to 3 min depending upon the wavelength, intensity of the UV light, and the thickness being cured. Typical heat curing schedules are 10 to 30 min at 250Â° to 260Â°F. The system has suitable durability, toughness, and thermal shock resistance as well as adhesion to many different substrates, including glass, metals, plastics, polyester films, and polycarbonates. It has a Shore D hardness of >70 and an elongation of 65% to 75%. Its tensile strength is 5,460 psi.
Master Bond Inc., www.masterbond.com

The Virtex-5 offers designers using the XAUI communications protocol a reference design, XAUI protocol characterisation report for GTP transceivers, access to Xilinx LogiCORE IP, and an eight-lane PCIe add-in card with CX4 connector development board. The FPGAs, with built-in endpoint blocks for PCI Express, Ethernet MAC, and 3.75 Gbit/s RocketIO GTP transceivers, and numerous LogiCORE soft IP (including XGMAC and XAUI), are designed to provide a platform that enables implementation of a fully integrated and compliant device that has passed the UNH-IOL testing for the XAUI protocol.Xilinx Inc., www.xilinx.com

Photodiode receiversThe G10342 receivers feature a high-speed response up to 11.3 Gbit/s, making them suitable for high-speed data transmission applications such as SDH (STM-64 or SONET OC-192), 10-Gigabit Ethernet (10GbE), and storage area networks. The receiver optical subassembly (ROSA) package is compatible with industry-standard 10 Gbit/s miniature devices such as XMD-MSA and is suitable for use in XFP transceivers. The G10342 is designed to operate at a low voltage (3.3 V) and provides a differential output signal, which enables increased sensitivity and dynamic range for all 10 Gbit/s applications.Hamamatsu Photonics K.K., www.sales.hamamatsu.com

Two-stage fibre-optic distributor cables enable simpler, more compact installation and clearer cable routing. The new concept has high-fibre, preterminated loose tube cables that are divided at the factory over two or three spare conduits, each with four 12-fibre bundles (each conduit contains 48 fibres). The distributor heads fit into a standard one-height unit housing with 24 ports. By using routing frames, 96 or 144 fibres can be terminated with only two or three 19-in. standard housings. The preterminated FO cables come with protective tubes that can be easily removed during on-site installation.DÃ¤twyler Cables International, www.daetwyler-cables.com

The TimeProvider 5000 is an IEEE 1588 Version 2 carrier-class grandmaster clock designed to meet the stringent timing and synchronisation requirements of next-generation network applications, including Ethernet backhaul, circuit emulation, and PON. The device is suited for deployment at radio network controller and base station controller sites where rack space and real estate are limited. The device incorporates hardware-based time stamping and hardware redundancy for 99.9999% accuracy, and has rubidium and quartz options that enable service providers and network equipment manufacturers to choose the optimal level of holdover capacity based on network performance, application, and cost requirements.Symmetricom Inc., www.symmetricom.com

The Si5319 precision clock is capable of generating any output frequency from either a crystal or reference clock input with 0.3 ps jitter generation and supports a free-run mode of operation. The device can provide clock synthesis, clock multiplication, and jitter attenuation in high-performance timing applications such as SONET/SDH/OTN line cards, WDM line cards, wireless base stations, synchronous Ethernet routers, test and measurement equipment, and broadcast video. The Si5319 can accept any frequency from 2 kHz to 710 MHz and generate any frequency from 2 kHz to 945 MHz and select frequencies to 1.4 GHz.Silicon Laboratories Inc.,www.silabs.com

The Cannon PHD SuperLC connector features a small form factor and maintains the same high optical performance characteristics of a standard LC product while operating in severe environments. The connector is designed for military/aerospace, telecom service, and industrial data communications applications. The connector features a tunable optical cartridge that functions as a standalone optical element separate from the connector housing and accepts multimode or singlemode ferrules. The locking mechanism also prevents thermal stress of the latch at high temperatures. Crimp termination of the cable to the rear body ensures ease of use and quick field repair.ITT Interconnect Solutions, www.ittcannon.com

The low-loss MPO24 is a 24-channel MPO connector with reduced insertion loss for use with ribbon fibre pigtails, fibre arrays, and fibre fan-out assemblies. MPO eliminates the need for per-channel fibre cables, thus reducing fibre routing complexity. Previously, channel counts for MPO connectors were limited to 8 or 12; however, recent advances in materials and processing technology allow low loss and high uniformity over all 24 channels. The form factor of the MPO24 housing is identical to that of the MPO12, despite the high number of channels. The 24 channels are compactly contained within the ferrule in two rows of 12 fibres, with 0.5 mm spacing between rows. Insertion loss is specified at maximum 0.3 dB.AiDi Corp., www.aidicorp.com

The InterBOARD QSFP active optical cables (AOC) provide bidirectional, electrical-to-electrical connectivity over distances up to 300 m using multimode optical fibre. The cables are specifically designed to support high-performance computing and data centre environments. The modules offer four independent transmit and receive channels, operating at up to 10 Gbit/s per channel for an aggregate bandwidth up to 40 Gbit/s. The modules also provide a compact option for DDR/SDR InfiniBand, 10GbE CX4 (XAUI), 4Ã�OC-48 SONET, multilane PCI Express, and 100Gigabit Fibre Channel, as well as proprietary backplane interconnections.Reflex Photonics Inc., www.reflexphotonics.com

The PW85ST and PW13ST modules are utilised primarily for video transmission systems. The devices are designed to support full-duplex communications over standard 50-Âµm core and 62.5-Âµm core multimode fibre and are equipped with an ST connector interface. The compact transmitter and receiver modules operate in the 850- and 1,300-nm optical windows using LED light sources. Both are designed to simultaneously transmit and receive over a single optical fibre at frequencies from DC to 200 MHz. They are tested for conformance to specification and meet industrial operating temperature ranges from â��40Â° to 85Â°C.PD-LD Inc., www.pd-ld.com

Continuous-band DCMThe DCM-CB dispersion compensation module covers the full continuous C-band and enables any channel plan, bit rate, and modulation format, offering low loss and no latency. According to the company, it increases performance and efficiency, making it suitable for transmission over mission-critical networks. The module provides a small form factor compared to incumbent dispersion compensation technologies. The DCM-CB addresses next-generation DWDM systems with increased transmission capacity, which will benefit from the flexibility in channel spacing offered by the C-band coverage.Proximion Fibre Systems AB, www.proximion.com

The Layered Services Management tool addresses the challenges of managing metro and regional networks. Its features were developed to augment the SN 9000 intelligent multiservice switch, a carrier-grade platform that integrates multiple functions, including low-order and high-order switching, add/drop multiplexing, advanced Ethernet services, and integrated optical transport, in a single system. The tool features flexible, partitioned views of pertinent multilayer service information, proactive alarming through intelligent correlation of network and service layer information, simplified troubleshooting to aid in identifying, diagnosing, and prioritising performance issues, and improved visibility and control to maximise end-to-end capacity and resource utilisation.Sycamore Networks Inc., www.sycamorenet.com

Reconfigurable wavelength blockerThe wavelength blocker is designed for optical add/drop multiplexing (OADM) applications in next-generation optical communication networks. The internal optical block has no moving parts and the package is based on a hermetic sealing structure for high operational stability and long-term reliability. Other features of the subsystem include C-band or L-band operation at 100- or 50-GHz spacing, wide passband with flat-topped channel profile, channel-by-channel attenuation and blocking, and high extinction ratio. In addition to its application for reconfigurable OADMs, the device also can be used for network management (protection and restoration) and dynamic channel power equalisation.Santec Corp., www.santec.com

The 9700 Series of Carrier Ethernet switch routers provides 1,200 GbE ports per rack, or 120 10GbE ports. Initially, the system supports 40 Gbit/s per slot, with the ability to scale up to 100 Gbit/s per slot and 1 Tbit/s per shelf in the future. The ShadeTree IP/MPLS control plane has been enhanced with features to enable the delivery of MEF services such as E-Line, E-LAN, and E-Tree along with Ethernet OAM standards from the IEEE and ITU. The 9200 Series complements the 9700 Series by providing Ethernet demarcation at the customer premises and cost-effective aggregation in the service providersâ�� access network.ECI Telecom, www.ecitele.com

Fibre-optic visual fault locatorThe VLF-280 is a handheld fibre-optic laser source that emits visible light at 650 nm and identifies breaks or microbends in optical fibres. The instrument can also be used for fibre identification in an optical fibre bundle. Light emanating from a break or microbend enables the user to locate the exact position of a fault even at very short distances. The fibre to be tested is connected to the source by a standard 2.5-mm fibre-optic connector. The source may be used in one of two modes: modulated or continuous.Scitec Instruments Ltd., www.scitec.uk.com

OSP enclosureThe outdoor enclosure for the FLASHWAVE 4100 extension shelf system spins for full 180Â° product access and is designed to enable carriers to quickly and cost-effectively deploy and maintain the equipment. The cabinet has the ability to convert AC power to DC power, has a small-form-factor design, and is suitable for outdoor applications. The enclosure is NEBS Level 3 compliant, UL approved, and is part of the companyâ��s Network Life Cycle Services offerings.Fujitsu Network Communications, www.fujitsu.com

The Radian System processes bare optical fibres and allows fibres to be polished at user selectable angles for R&D applications and production. A real-time video system actively monitors the polishing process from start to finish. The inspection module permits in-line viewing of the polished fibres to ensure surface quality. Adapters are available for a variety of fibre types and diameters. PM fibre can also be aligned and polished in the system.
Krell Technologies, www.krelltech.com