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 –

Buying Optical Fiber Jumper and Fiber Optic Pigtail

The difference between optical fiber jumper and fiber optic pigtail

Optical fiber jumper is a fiber optic cable with optical fiber connector plugs on both ends. Fiber optic jumpers are divided into the following three types by termination type basically: ST-ST, SC-SC, ST-SC. According to the optical fiber type, they mainly include single-mode fiber and multimode fiber. The specifications of the jumper wire length are 0.5m, 1m, 2m, 3m, 5m, 10m and so on.

Different from optical fiber jumper, fiber optic pigtail is a fiber cable end with fiber optic connectors at only one side of the cable while leave the other side no connectors, so that the connector side can link to the equipment and the other side can be melted with optical cable fibers.

Optical fiber pigtails are used to achieve accurate mounting for precision alignment of fiber optical components. Fiber optic pigtails are usually used with fiber optic management equipment like ODF, splice and cross cabinets. They connect different optical fiber communication equipment and system activity in passive components. With optical fiber distribution frames, boxes, terminal box, Optical fiber pigtails can realize welding of different direction of fiber optic cable, fiber jumper and flexible wiring of distribution, so as to realize the optical fiber communication network of highly efficient and flexible management.

Models of optical fiber jumper and fiber optic pigtail

Fiber optic jumper and fiber optic pigtail are all named on FC/ST/SC/LC/MTRJ/PC/APC/UPC. They stand for the physical interface connection on both ends, different connections with different models.

FC is the circular spiral

ST is circular bayonet 45 degrees

SC is a square socket

LC and MTRJ are small core plug connection

PC is spherical structure

APC is 8 degrees inclined structure

UPC is flat structure

How to calculate the amount of optical fiber jumper and fiber optic pigtail that you need?

Firstly, make it clear that how many cable routings and optical transceiver you have. That is to say, each routing needs to occupy the number of optical fiber.

Secondly, make sure how many optical fiber you need to reserve.

Thirdly, calculate your total number = optical fiber number + back up number, fiber splice = total number * 2, fiber optic pigtail you need = fiber splice you need, optical fiber jumper = optical transceiver * 2 + backups.

The selection and calculation of fiber optical jumper and fiber optical pigtail are involving professional knowledge. If you want to know more about them, you can contact our civil service in FiberStore, who will give you more details.