David J. Null Email & Phone Number

Shallotte, Nc, Us

Shallotte, Nc, Us

Provided high level cost estimates to Executive Management used to secure NCDIT Great Grant and Federal USDA ReConnect Grant applications in excess of $30M. Developed cost analysis spreadsheets of approved FttH design estimates for comparison against invoiced as-builts to establish actual costs per household passed and cost per construction mile data. Leadership role in the implementation and training of ESRI ArcGIS/ArcMap NetDesigner tool for developing preliminary FttH designs. Responsible for the design, redesign and quality control of consulting engineering OSP designs for large scale FttH wide area network deployments in the ATMC ILEC and CLEC markets. Developed feeder fiber splice details for FttH FDH splitter-cabinet hubs as well as network circuits for new OLTs. Product design and project management for cutover of existing FDH hubs and customer facing circuits to new OLT remote site.

Atlanta, Georgia, Us

Provided contract OSP Engineering services for Windstream Communications clients in NC ILEC markets. Performed OSP field work and OSP fiber designs for business customers and NCDOT road move projects.

Little Rock, Ar, Us

Developed cost studies for CSA loop shortening designs utilizing line-powered sealed VDSL2+ DSLAM solutions. Worked with EF&I contractors upgrading 450+ existing DLC sites in NC and SC ILEC markets from existing ATM networks to Carrier Ethernet networks using VDSL2+/POTS combo product solutions. Planned upgrades to existing DLC networks to allow IPTV Video and VDSL2+ GBOND DSLAM service offerings in 11 ILEC NC exchanges. Provided plans to upgrade an existing EPON OLT FttH network with a GPON OLT solution to allow up to GE speeds to over 25,000 homes passed. Specified new Broadband remote cabinet solutions for 170+ existing CSA DLC sites in NC and SC ILEC exchanges as part of the Connect America Fund (CAF1 R2). Preparing both OSP and OSPE capital budget line items (BLIs), updating Strategic Route Plans (SRPs), Fiber to the Tower (FttT) spreadsheets and cost trackers to support network initiatives. Providing Project Justification (PJTs) documentation to management for planned Capital Budget BLIs as well as unplanned BWAP, FttH subdivision and NCDOT road move projects. Providing fiber and copper EoC solutions in support of internal Consumer Small-Medium Business (CSMB), Wholesale (WHS) and Enterprise (ENT) Sales requests for the Southeast ILEC region. Qualifying copper loop lengths of existing copper plant for EoC delivery up to 40 MB EIA services. Estimating OSP fiber build costs for Carrier Ethernet requests up to 1 GE symmetrical bandwidth speeds.

Developed spreadsheets to calculate optical loss in fiber-to-the-home (FTTH) networks to support triple play services (voice, data, video). Designed and engineered fiber projects for deploying BLC access network rings to allow POTS/Data aggregation with DSL rates up to 10 Mbps. Provided fiber network design solutions for business customers requiring symmetrical bandwidth services greater than 10 Mbps as part of a Metro Ethernet product offering. Performed cost studies and implemented passive FTTH networks into existing urban aerial overbuild areas as well as new greenfield subdivisions in ILEC and CLEC territories. Proposed fiber solutions for a Metropolitan Area Network (MAN) for a NC County public school system to allow data network connectivity to approximately 16 elementary, middle and high schools. Specified Wave Division Multiplexing (WDM) solutions to overlay 1550 nm optics onto existing 1310 nm SONET networks to expand DSL coverage in the telephone companies ILEC territory. Primary responsibility to provide fiber splice details on work prints for existing and new OC-3, OC-12, OC-48 and OC-192 SONET fiber rings in support of telephony transport systems. Planned and engineered network installation projects using SONET optical add/drop muxes. Project managed installation of Gigabit ethernet switches used to backhaul DSL traffic. Participated in specifying acceptable test parameters for optical time domain reflectometer (OTDR) and optical link loss (dB) readings for fiber links between network nodes.

Chantilly, Virginia, Us

Performed Outside Plant Engineering (OSP) services for Bellsouth’s telephone network. Analyzed service order requests to determine solutions for providing telephone service for both residential and business customers. Drafted construction work prints using MicroStation BST-CAD software to meet specifications required for analog and digital telephony services.

Albemarle, Nc, Us

Electronics instruction for a two-year A.A.S. Electronics Engineering Technology degree program including the following: Fundamentals of DC and AC Electricity, Semiconductor and Linear IC Devices and Circuits, Digital Logic Gates and Circuits, Microprocessor Control and Interfacing Techniques, and Programmable Logic Controllers (PLCs) using the Allen-Bradley SLC 5/02 PLC family. Software and PC related instruction in DOS, Windows 3.1, Windows 95, Microsoft Office applications: Word, Excel, and PowerPoint, Computer and Peripheral Maintenance, and 6800 MPU Assembly Language Programming/Machine Coding. Updated Electronics Lab by specifying and securing purchase of power supplies, function generators, digital multi-meters and PCs to run latest software. Built circuits for lab experiments to engage students in the proper use of lab equipment and tools used to test, analyze, and troubleshoot various electronic components, circuits, and systems.

Virginia Beach, Va, Us

Electronic instruction for a 1-year Electronics Computer Technology technicians diploma. Course material covered included Mathematics, DOS, WordPerfect, Lotus 1-2-3, Dbase, DC/AC circuit theory, Semiconductor devices, Digital ICs and Microcomputer Architecture/Troubleshooting.

Developed accuracy and repeatability test methods for electronic automotive lubrication controls and flow meters. Debugged and corrected electronic component problems with an electronic oil mist monitor system used in high speed machining applications. Troubleshoot and resolved customer complaint with faulty oil mist monitor system used in an automated machine transfer line.

Us

Primary responsibility involvement with photoelectric, inductive, and capacitive sensor product lines. Worked on redesign and implementation of a fiber optic transceiver including prototype qualification, production introduction and product support. Designed and specified electronic components for a switching power supply used in a two-wire network sensor project. Gained Product Engineering knowledge in project scheduling, drawing documentation, test specification, and component procurement. Also assisted in the design and fabrication of a PC controlled parametric test fixture for a photoelectric sensor product line.

Bachelor Of Science - Bs, Electronics Engineering Technology

High School Diploma