Power and Communication Supply for Digital Display

Service Detail from GL Communications, Inc.

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WMATA is installing new digital display panels in Metro stations throughout its system. The displays will be used for purposes including advertising and other public information. A total of 176 LCD/LED digital display panels are intended to be installed. The LCD displays are 55” and the LED display vary in size and are housed in a digital display box. The digital display system includes multiple displays at each station with equipment supporting its operation located in the Communication Rooms. The displays require power and communication to be routed to them.

The project involves creating a biddable package with all details required for contractor installation of conduit, cable etc. This included conduit plans, conduit schedules, cable plans, cable schedules, panelboard schedules and many supporting detailed installation drawings. Site surveys and WMATA input was essential to the conduit and cable design. Along with the design, WMATA requested that existing power panels be metered to ensure loading condition and capacity for new installations.

GL’s Specific Roles and Services Provided:

  • Project Lead – Internal
  • Electrical Engineers
  • Computer-aided Design (CAD) Personnel
  • Electrical Metering and Load Calculations

The project involves designing the power and communication supply to all system components at the WMATA stations. Electrical and communications design services as well as conduit sizing and routing designs were completed by GL Engineers. A detailed PE stamped-design drawing package, scope of work, cost estimate & bid package along with existing power metering surveys were included in the final deliverables. GL worked with a Prime Consultant but was given complete design and responsibility for the stations assigned. GL completed all scope of work responsibilities for multiple WMATA stations.

About GL Communications' Consulting Services

GL Communications Inc. provides technical consulting engineering, and testing services for all telecom networks. GL is a DBE/MBE firm certified by Maryland DOT, New Jersey DOT, Washington Metropolitan Area Transit Authority (WMATA), Virginia DOT, and South Eastern Pennsylvania Transportation Authority (SEPTA).

With extensive telecom experience, GL offers a comprehensive suite of testing services to evaluate complex networks. Our engineers have extensive experience in all aspects of testing, including designing test plans, developing test procedures, conducting tests, and documenting test results. Our customers include telecom wireless and landline carriers, mass transit administrations and public safety systems nationwide. We have designed hundreds of wired and wireless telecom network systems over the years.

Our project management services are very cost efficient and include:

  • Testing of high-speed telecom networks (T1, E1, T3, E3, OC-3, OC-12, STM-1, STM-4, etc)
  • Testing of VoIP, ATM and Central Office switches
  • RSSI field strength measurements and voice quality testing of public safety land mobile radio systems
  • Drive testing to verify commercial cellular service coverage
  • Assessment and audio survey of public address systems in transit/metro stations