White Papers

WHITE PAPERS

The OSP® brand provides the HOW-TO for communications and entertainment providers as they continually evolve their networks. Here you will find the latest white papers to help with your product purchasing decisions.

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Take the Bite Out of Broadband Networks
Logical, Cost-Effective Solutions, Practices and Methodologies Across the Entire Passive Network

FTTH deployment technologies are many and additional are in development. Service providers must evaluate and determine which technologies are best for them, whether its BPON, GPON, and Active Ethernet or the emerging technologies of GPON-10GB, WDM-PON, NG-PON, All-IP triple play, and even RFOG. Within this evaluation, the service provider must be aware and carefully weigh the cost associated with these technologies against the insatiable thirst for bandwidth that their subscribers demand. The FTTH provider is faced with many choices. Do they put in the safe and generally accepted infrastructures – but then worry about the costs and timing of future upgrades? Or, should they put in the cutting edge technologies and deal with the costs and challenges of being an early adopter? Or, do they do something in between? READ MORE

T-BERD(r)/MTS-4000 Class of Service (CoS) Test Suite

The development of new Internet Protocol (IP)-packet based, so call Triple-Play, services (voice, video, data) delivered over the telco Access Network places new demands on network designs. Each of the services has their own specific quality of service (QoS) requirements, and all have varying bandwidth demands that are dynamic in nature, and, as a result, require prioritized treatment of the three services. In the access network, where bandwidth (BW) is often limited (digital subscriber loop [DSL] links, for example), BW allocation and control is critical. Furthermore, the mix of services supported must match the customer subscriptions and thus expectations: the number of high definition (HD) video streams, standard definition (SD) video streams, and voice calls supported simultaneously, and the amount of BW is provided for data service. READ MORE

Fuel Cell Basics for Communications Industry Professionals

Fuel cells are used today in a variety of applications ranging from backup power for telecommunications and government industries to material handling vehicles and recreational vehicle support systems. They are touted as a clean, green alternative to batteries and combustion engines, capable of passing the most stringent air quality standards. They are famous for their role in the Space program since the late 1950’s as a source of both power and water for crew consumption. But what are fuel cells, how does it work, who uses them and why should you care? READ MORE

Multi-Dwelling Unit Fiber Unit Deployment

Billions of dollars are spent annually delivering high speed fiber networks to Multi-Dwelling Units (MDUs) — apartments, condos, and student-housing — across North America. Service providers recognize the rich potential returns on a fiber investment in such high-density markets. Fiber connections will bring fast, reliable, content-rich services to millions of households. However, poor planning of fiber network interfaces and service delivery to a consumer's media devices can leave everyone, from the builder/developer and building owner to the service provider and tenants/subscribers, frustrated. READ MORE

Understanding Power Factor and Input Current Harmonics in Switched Mode Power Supplies

The proliferation of AC-DC switched mode power supplies has resulted in strict limits being imposed on AC input current power factor and harmonic content. The electronic system designer must take these into account in developing hardware requirements. A sound understanding of typical power factor correction circuit performance and dynamics as a function of line and load will aid in this task. READ MORE

Fiber Optic Electrical Protection for Stand Alone PCS and Other Radio Sites

There are four major reasons to use fiber optic systems for radio tower communications:

  1. Fiber optic links eliminate transferred potentials 1 during lightning induced Ground Potential Rise (GPR) conditions.
  2. Fiber optic links are immune to high energy Electro Magnetic Pulse (EMP) induction from lightning; both within and external to the radio site.
  3. Fiber links provide total dielectric isolation for all circuits (backhaul) between the tower radio and the serving telco copper based network.
  4. Fiber optic links provide the highest level of worker safety and service reliability.

This paper addresses these four major reasons for using fiber, and the basic principles for providing overall electrical protection for stand alone radio towers. READ MORE