PC Designs is a multi-faceted consulting enterprise providing design and technical assistance to companies of all types and sizes. Companies that are just beginning operation and would like to begin design as soon as possible will find the wide range of capabilities of PC Designs to be beneficial. And to established companies that would like to add design capability without adding permanent personnel, PC Designs offers on-site design services.

PC Designs also provides network design and installation to homes and small businesses. PC Designs fills the niche left by larger companies that generally charge more because of their higher overhead structure.

PC Designs is a Loudoun County small business, located west of the Nation's Capitol, approximately 8 miles from Washington D.C.'s Dulles International Airport, in Sterling, Virginia. PC Designs is owned and operated by Roy F. Cleveland, who has worked with the Federal Government as an engineer, designer, troubleshooter, field technician, field engineer. He has held a Top Secret (SCI) security clearance since 1980. A complete resume in PDF format is available by clicking <HERE>. Mr. Cleveland employs the services of several other individuals to provide technical and engineering assistance as needed.

PC Designs offers design and technical expertise in a number of areas, including:

Web site Design, Layout, and Setup. Page development using a variety of popular tools:

• Use of <Allaire>/Macromedia Homesite for HTML/JavaScript coding.
• Use of Adobe Photoshop for graphics manipulation.
• Use of Adobe Go-Live for site layout and page creation.
• Informational Sites for Non-profit 501(3)c corporation - Ongoing site maintenance.
• Catalog site for home business - Ongoing site creation.
• This site - almost entirely coded by hand in <Allaire> Homesite.

Home and Small Business Telephone and Network Layout, Design, and Installation:

• Complete turnkey services using commercial off the shelf (COTS) components.
• No job too small. Because of low overhead, very small system designs benefit from our price structure.
• Use of CAT-5e is standard for Ethernet. Permits upgrade to "gigabit ethernet".
• Use of CAT-3 standard for Telephone, providing optimum environment for DSL (up to 10Mb/s) broadband service.
• Surface and hidden telephone and network installation. Retrofit installation is available.
• PC upgrade and software installation for network use.
• Telephone cable and equipment installation and turn up.

Circuit Design:

Some examples of past designs include:

• SONET to DS3 multiplexer; part of project team.
• HDSL Line Interface Unit (for SLC Series 5 Central Office Equipment).
• Use of Cadence Concept schematic entry software for Windows.
• Telcordia GR1089 Testing (Level 1 and 2 for LIU).
• Direct Access Arrangements (DAA), both transformer and optical designs.
• Subscriber and CO Line Interfaces (SLIC and COIC).
• E&M Analog Telephony Interface, for Types 1 through 5. Note: Types 4 and 5 are used internationally.
• Microcontroller Based Serial Protocol Converter.
• "Parrot Switch" - Voice Recording Light Switch Plate printed circuit boards.
• 5 Volt to 3.3 Volt Converter - 7 Watts, low noise, 0.4 square inches.
• 600 Watt, 500 Volt DC Output Boost Power Factor Corrected Power Supply.
• High Frequency (300KHz) SEPIC Battery Charger.
• Five REN, 12 V to 120 V DC to DC converter for telephony ring generator application.
• Communications cabinet design.

Technical Writing Examples

• Complete product manuals, data sheets
• Reports in Microsoft Word, and Powerpoint presentations - support and direct presentation
• Revisions and updates to existing product manuals

Available Hardware and Lab Capabilities

• "Rack and Stack", cable installation, connections, dressing, on or off site.
• Electronics lab setup and consultation.
• SMT rework capability.
• Cable Assembly.
• Use of machine shop tools, hand tools, etc.
• Acetylene torch brazing, (bronze, mild steel) and soldering (high temperature silver).
• Plumbing, structural electrical, woodworking, framing, building.

In addition to engineering experience as an employee, Mr. Cleveland has been involved with a number of individuals and companies as a consultant, designing a wide variety of circuits, drafting, and laying out printed circuits for through-hole, surface mount (SMT), and chip-on-board (COB) technologies. Most of the circuits designed have included a mix of analog and digital circuitry and have required a knowledge of low noise PC board methods such as plane layer decoupling, aligned-track techniques for differential signals, and the use of H/W ratios over ground planes (microstrip) to ensure impedance matching of high speed digital lines. He has designed several high output power supplies using low-loss ferrites, using pot cores, torroids, and E-cores.

Engineering design options include "Tele-designing" with periodic visits to the employer, part time on-site, and full time on-site options. In addition, work on critical projects does not have to stop on Friday. The design can be continued over the weekend or through holiday periods, even though your office may be closed.

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