Customized Empty 4RU Rack Chassis

The Fiberstore company can offer customized empty 4RU rack chassis to hold 12 pieces of standard size LGX cassettes now. They can also provide the custom LGX cassettes to complete this entire solution for space saving and high-density applications. Here are some finished products for example.





The specifications are described in the figure below.


Fiberstore can offer various customized chassis on customers’ requirements, for example:

  • 1RU rack mount chassis that hold 2 pieces of small size LGX cassettes
  • 1RU rack mount chassis that hold 4 pieces of small size LGX cassettes
  • 4RU rack mount chassis that hold 12 pieces of standard size LGX cassettes

This is just an iceberg of custom cases that Fiberstore provides. They could make it beyond what you can imagine!

Contact Fiberstore sales now at and tell them what you want!
They’ll find the info you’re looking for and respond to your inquiry within one business day.

About Fiberstore:
Fiberstore is now the largest company who can supply all kinds of solutions for WDM optical networking systems, including CWDM, DWDM, MUX & DEMUX, OADM, etc.. The 4RU rack chassis is only a little part of their products. You can find whatever you want by just visiting the website (

Micrel Launches New Limiting Post Amplifier for 10Gbps FTTH PON Network

Micrel Semiconductor has introduced SY88053CL and SY88063CL limiting post amplifier. Both devices support the expansion of the next generation passive optical network (PON) FTTH XGPON and 10GEPON optical line terminal (OLT) ideal for applications. The product line also applies to support multi-rate applications. Fiber optic transceiver module, the maximum rate is up to 12.5Gbps. Support for Ethernet, Fibre Channel, OTN and OBSAI data rate.
“These new devices offer an impressive number of features including a new level of high bandwidth, high input sensitivity with programmable, wide range SD Assert and LOS De-Assert threshold levels, 4dB of electrical hysteresis, and stable SD Assert and LOS De-Assert timing to meet the stringent requirements of next generation PON network,” stated Tom Kapucija,director of marketing for the high speed communications business, Micrel. “Thesse features enable link efficiency optimization with increased system reach, higher link up-time and higher payload bandwidth.”Vice president for the timing and communications business group, Rami Kanama, said, “As the demand for more data at higher speeds increases, carries need to meet this demand by upgrading their line-side equipment and revamping their networks. Micrel continues its effort in addressing this demand at the device level. Our new optical limiting amplifier delivers speed, performance, and features that is critical to solving technical difficulties facing next generation FTTH, Enterprise, and transport networks. With increased link efficiency, system operators can achieve higher data transmission performance and potentially reduce carries’ CapEx and OpEx.”
Both devices incorporate fast SD Assert and LOS De-Assert times across the entire differential input voltage range of 5mVPP to 1800mVPP which enables improved link efficiency and optimization. In 3mVPP to 30mVPP wide LOS / SD threshold range provides a 4dB electrical hysteresis.  Integrated 50 Ohm input and output impedances optimize high speed signal integrity while reducing external component counts and in turn, cost. TTL compatible JAM input enables a SQUELCH function by routing back the LOS or SD signal.
The SY88053CL enable user adjustable decision threshold adjustment for optimized Bit Erro Rate operation in noisy applications with asymmetrical noise distribution while the SY880563CL provides a user selectable Digital Offset Correction function that automatically compensates for internal device offsets in the high speed data path. Other features include multi-rate 1Gbps to 12.5Gpbs operations, optional LOS or SD output, selectable RXOUT +/ RXOUT- signal polarity (SY88053CL) and 25ps typical rise / fall time. Beyond the current customer demand through increased performance margins, improved manufacturability of the module, while reducing costs. By increasing each node and the downstream branch exceeds 512ns link budget margin established, to improve the efficiency and data throughput of the link. By optimizing in a noisy environment and the error rate or RAMAN EDFA Optical Amplifier noise characteristics of asymmetric compensation, expanding the system extends the scope to improve the data throughput.
Both devices offer a wide power supply range of 3.3V+/-10 percent and come in an industrial temperature range of -40 degC to +85-degC and a tiny 3mm x 3mm QFN package.

EMCORE Added Medallion 8000 to Its 1550nm CATV Fiber Optic Transmitter Porfolio

The leader of compound semiconductor-based components and subsystems for the fiber optics and space solar power markets added the Medallion 8000 to its 1550nm Directly-Modulated DWDM CATV transmitter.

This new design of the EMCORE’s 1550nm CATV fiber transmitter serve for the applications which require both CATVE and Satellite-Intermediate Frequency (SAT-IF) singles to be transmitted over fiber lengths up to 30km. This dual-use capability of the transmitter supports network architecture which requires a single transmitter to carry multiple signals, while lowering costs, system complexity and rack space requirements.
The Mediallion 8000 supports 79-channel NTSC analog signals and/or a combination of QAM and SAT-IF signals with a reduced number of CATV analogy channels. It supports four fixed fiber length options – 0-10km, 5-15km, 10-20km, and 15-25km – with a maximum of 18 Dbm stimulated Brillouin Scattering (SBS) suppression. This product is also available with a selectable fiber length option.
The selectable fiber length option allows the user to set the Medallion 8000 for best optimized CSO (Composite Second Order) distortions at any fiber length from 0-30km in 1km increments and has a maximum SBS suppression of 20dBm.
The Medallion 8000 family of transmitter products is designed to support various CATV transmitter applications with a common platform. 75 ohm CATV RF video input supports frequencies up to 1002 MHz. Other design features include low chirp control. Noise suppression circuitry, and patented pre-distortion technology for high performance with EMCORE’s range of cooled broadband directly modulated lasers. A second 75-ohm RF input supports frequencies up to 2700 Mhz for fiber-to-the-premises (FTTP), SAT-IF, and wireless applications.
Monitoring and configuration of the Medallion 8000 are supported by EMCORE’s latest generation web GUI, Telnet, and Simple Network Management Protocol (SNMP) software via a front-panel display, RS-232 port, and Ethernet port. The Medallion platform is mechanically designed for flexibility and space efficiency including universal rack-mount features, modular front panel design for private label convenience, and optional front and rear port placement. Dual-redundant field-replaceable fans and power supplies are standard.
“The new Medallion 8000 directly modulated transmitter family builds on the strengths of our popular Medallion 6000 externally modulated series and augments our offering for concurrent transmission of CATV and SAT-IF signals over fiber,” said Jaime Reloj, vice president of business development for EMCORE. “Network providers are demanding high-quality, economical delivery of video to their customers, while extending capacity and improving network management intelligence. The Medallion 8000 series transmitters are ideal for extending traditional hybrid fiber coaxial CATV systems, for RF overlay for FTTP, and for RFoG (RF over glass) projects in countries around the world.”
Published by FiberStore, industry news –

Verizon Considering the Acquisition of Canadian Carriers Wind Mobile

Summary: The U.S Verizon Communications will acquire Canadian carriers Wind Mobile, aiming to enter the Canadian wireless market.

According to the Global and Mail reports that the U.S Verizon Communications is considering to acquire a small mobile operator in Canada in order to enter the Canadian wireless market.

The report, citing unnamed sources, said the Canadian government wants all of the regional markets in the country with at least four major wireless carriers to enhance competition. It is considered by Canadian government that foreign investment struggle of the smaller operators as a way to ensure the competition.

Verizon has conducted exploratory talks with the Canadian Wind Mobile investors, as indicated by the reports, except Verizon, AT & T, Vodafone and Telenor are also potential investors.

Despite Wind and Mobilicity took low-cost market strategy, but the two companies are still not able to turn around. This two smaller operators are completing with larger mobile operators Telus, Bell Mobility and Rogers Communications. Mogilicity is trying to sell itself to Telus, but the government stop the deal with the excuse of that a smaller operators should not been annexed a big carriers. Canadian government has relaxed restrictions on foreign ownership to promote a more competitive wireless market, but the sale of Wind by VimpleCom has been treated in the sale of the government of Canada’s security concerns.

As reports shows, Verizon Wind and VimpelCom are all declined to make comment on it.

Sources said, Verizon will acquire Wind or Mobilicity, and participate in an upcoming spectrum auction. In theory, such a move would lead to more price competition, and put pressure on existing Canadian carriers. “Verizon is now certainly carefully consider this transaction.” One source said.

Canadian wireless market has long been controlled by existing major carries. Earlier this month, the Canadia Radio and Television Commission (CRTC) have made some changes in regulatory policies designed to stimulate more competition. The regulatory agency sad, users can cancel the contract after two years of its wireless contract (in the past, the contract period is three years), it also set up an additional monthly data traffic upper limit beyond the package price cap and international data roaming tariff ceiling respectively, which are respectively $ 50 and $ 100, in order to prevent the emergence of a huge phone bill.

Source: FiberStore News