Structured Low Voltage Systems

Low Voltage Structured Data Systems Overview

A structured cabling system is a complete system of cabling and associated hardware, which provides a comprehensive telecommunications infrastructure. This infrastructure serves a wide range of uses, such as to provide telephone service or transmit data through a computer network. It should not be device dependent.

We further define a structured cabling system in terms of ownership. The structured cabling system begins at the point where the service provider (SP) terminates. This point is the point of demarcation (demarc) or Network Interface Device (NID).

For example, in a telephone system installation, the SP furnishes one or more service lines (per customer requirements). The SP connects the service lines at the point of demarcation.

The U.S. cabling industry accepts the American National Standards Institute (ANSI), in conjunction with TIA/EIA, as the responsible organization for providing and maintaining standards and practices within the profession. It has published a series of standards to design, install, and maintain cabling installations. These help to ensure a proper cabling installation.

The benefits of these standards include

Structured cabling installations typically include: entrance facilities; vertical and horizontal backbone pathways; vertical and horizontal backbone cables; horizontal pathways; horizontal cables; work area outlets; equipment rooms; telecommunications closets; cross-connect facilities; multi-user telecommunications outlet assemblies (MUTOA); transition points; and consolidation points.

The entrance facility includes the cabling components needed to provide a means to connect the outside service facilities to the premises cabling. This can include service entrance pathways, cables, connecting hardware, circuit protection devices, and transition hardware.

An entrance facility houses the transition outside plant cabling to cabling approved for intrabuilding construction. This usually involves transition to fire-rated cable. The entrance facility is also the network demarc between the SP and customer premises cabling (if required). National and regional electrical codes govern placement of electrical protection devices at this point.

The location of the entrance facility depends on the type of facility, route of the outside plant cabling (e.g. buried or aerial), building architecture, and aesthetic considerations. The four principal types of entrance facilities include underground, tunnel, buried, and aerial. (We will cover only aerial entrances in this article.)

In an aerial entrance, the SP cables provide service to a building via an overhead route. Aerial entrances usually provide the lowest installation cost, and they're readily accessible for maintenance. However, they're subject to traffic and pedestrian clearances, can damage a building's exterior, are susceptible to environmental conditions (such wind and ice), and are usually joint-use installations with the power company, CATV company, and telephone or data service providers.

Backbone cabling. From the entrance facility, the structured cabling network branches out to other buildings, as well as from floor to floor within a building on the backbone cabling system. We use the term backbone to describe the cables handling the major network traffic.

The ANSI/TIA/EIA-568-A standard defines backbone cabling as follows: "The function of the backbone cabling is to provide interconnections between telecommunications closets, equipment rooms, and entrance facilities in the telecommunications cabling system structure. Backbone cabling consists of the backbone cables, intermediate and main cross-connects, mechanical terminations, and patch cords or jumpers used for backbone-to-backbone cross-connection. Backbone cabling also includes cabling between buildings."

Interbuilding and intrabuilding are two types of backbone cables. Interbuilding backbone cable handles traffic between buildings. Intrabuilding backbone cable handles traffic between closets in a single building.

This standard identifies two levels of backbone cabling. First-level backbone is a cable between a main cross-connect (MC) and intermediate cross-connect (IC) or horizontal cross-connect (HC). Second-level backbone exists between an IC and HC.

Cabling connectors. A connector is a mechanical device you use to interface a cable to a piece of equipment or one cable to another. The role of the connector is to provide a coupling mechanism that keeps loss to a minimum.

In the case of fiber, it allows light impulses to transfer from one connector to another. For copper, it allows electrical signals to transfer from one connector to another.

A good connection requires aligning the connectors, preventing the connectors from unintentional separation, and efficient transferring of light or electricity from one connector to the other.

A connector demonstrates durability by withstanding hundreds of insertion and withdrawal cycles without failing. We calculate this as mean time between failures (MTBF).

Connectors are as essential to the integrity of the entire telecommunications network as is the cable itself. Connectors align, attach, and decouple the media to a transmitter, receiver, another media of same or similar type, an active telecommunications device, or a specified passive telecommunications device.

Should you have any questions, please know that we would be happy to speak with you and your team via email, phone or in-person. You may visit our contact page to reach us. We look forward to helping you on your next project.

Mechanical, Electrical and Plumbing Engineering Services

Mechanical and electrical engineers are specialists, commonly referred to as “MEP” (mechanical, electrical, and plumbing) when engaged in the building design fields. Mechanical engineers design and oversee the heating ventilation and air conditioning (HVAC), plumbing, and rain gutter systems. Plumbing designers often include design specifications for simple active fire protection systems, but for more complicated projects, fire protection engineers are often separately retained. Electrical engineers are responsible for the building’s power distribution, telecommunication, fire alarm, signalization, lightning protection and control systems, as well as lighting systems.

OUR SERVICES INCLUDE

Mechanical
Mechanical Drafting and Design
Mechanical Detailing
3D REVIT
 Modeling
Shop/Fabrication Drawings
Product Designing and Development
Schematic heating and cooling system design
Heating and cooling equipment selection
Heat loss and/or gain calculations
Plant room layout design
Fire protection system design
Duct layout drawings

Electrical
Electrical schematics
Electrical, power and lighting plans
Electrical site plans
Electrical one line diagrams (Riser Diagrams)
Electrical panel schedules and distribution panels
Wiring Diagrams
Cable/harness Drawings
Power distribution systems
Interior lighting
Exterior lighting
Emergency and exit lighting
Fire alarm systems
Outlets and raceway systems for voice and data cabling systems
Calculation of Lux level
Selection of Wire size
Selection of MCB rating
Calculation of Busbar size
Selection of Lighting Fixture
Lux Level Lighting Fixture Location
Prepare Receptacle plan
Lighting fixture schedule
Outdoor Lighting plan
Panel Schedule with all details required

Plumbing
Plumbing and Drainage Drafting Services
Design and Drafting services for domestic water plumbing set up
Natural and LP gas piping drafting and planning services
Compressed air and medical gas system plan drawings
Demolition and existing plan drawings
Isometrics, Riser diagrams, details, schematics and schedules
Shop drawings, As-builts, specifications and coordination
Legends and addendums supplement plumbing construction drafts
Equipment Schedule
Establish plumbing Loads-Load analysis
Establish utility stub outs and pipe sizes
Locate and coordinate pipe sleeve requirements
Determine pipe chase space requirements
Specify sanitary fixtures
Water supply and distribution plans and details
Wastewater collection system
Soil report evaluation
Layout of below and above grade piping
Sewerage plans and details
Establish sewer loads
Establish main pipe size and co-ordinate stub locations
Expansion loops for seismic requirements
Vent sizing and routing
Roof drain calculation
Pump sizing and location

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Title 24 Compliance & Energy Analysis

The California Energy Code, or Title 24, Part 6 of the California Code of Regulations, also titled The Energy Efficiency Standards for Residential and Nonresidential Buildings, were established in 1978 in response to a legislative mandate to reduce California’s energy consumption. The standards are updated periodically to allow consideration and possible incorporation of new energy efficiency technologies and methods.

Khalifeh & Associates offers Residential & Commercial Title 24 Energy Calculation Services to homeowners, architects, designers, and builders. After reviewing your facility’s design, we ensure that energy calculations are taken accurately and efficiently to ensure compliance to energy standards.

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PROFESSIONAL SERVICES

Certified, Qualified, Knowledgeable IT Service Technicians are ready to manage, support and enhance your existing infrastructure or implement a new solution to bring value to your organization. Specific Solution and Services including off-site disaster recovery solutions are also listed on this section of our web site.

> IN-HOUSE SERVICES
> ON-SITE SERVICES
> PREVENTATIVE MAINTENANCE
> DOCUMENT SCANNING & ELECTRONIC RETRIEVAL
> HELP DESK PHONE / REMOTE SUPPORT
> OMIDI BACKUP DISASTER RECOVERY

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Comissioning Services

Commissioning is a third-party verification of a building’s energy-related systems to confirm that these systems are performing as set forth by the owner’s project requirements. A quality assurance-based process, commissioning delivers preventive and predictive maintenance plans, tailored operating manuals and training procedures for all users to follow. Our commissioning services are in accordance with LEED and are based on ASHRAE Guideline 2005,
  • Heating, ventilation, air conditioning, refrigeration and respective controls
  • Lighting and daylighting controls
  • Domestic hot water
  • Renewable energy

At the end of the construction, Khalifeh verifies all energy using equipment is installed and running per the design and specifications – assuring your building is not wasting energy and is functioning properly during occupancy.

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Facilities System Design

At Khalifeh & Associates, our experience covers facilities of all types, for a vast array of industries. Our knowledge and grasp of cost-effective and cutting edge engineering principles means that your needs will be covered.

Our cost-efficiency building analysis ranges from energy audits to full LEED certification. Khalifeh & Associates is dedicated to finding ways to make existing facilities more efficient and environmentally friendly for our clients and the people that live and work in them.

Our Facility System Design experience includes, but is not limited to:

Aerospace, Airlines, Clean Rooms and Labs, Commercial Facilities, Educational, Entertainment, Governmental, Hotels, Medical Buildings, Restaurants and much, much more.

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Fire Sprinkler Design

Fire safety is not a concept to be taken lightly. Khalifeh & Associates understands that lives are at stake with respect to a building’s fire suppression system. Our design team provides code compliant, automatic fire protection system designs that, once implemented, will ensure the safety of your building and it’s occupants.

Take the first steps towards the safety of your building and the people that occupy it, choose Khalifeh & Associates for your next fire suppression system design.

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BUSINESS INTERNET ACCESS

Dedicated, High Speed Internet Access, multi-site virtual private networking, wireless nationwide laptop Internet access, online calendar sharing and collaboration and much more

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ELECTRONIC DOCUMENT STORAGE

Document imaging systems that stores and retrieves paper documents Electronically. Allowing you to instantly and easily find any document with just the touch of a button.

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CUSTOM IT SOLUTION

Omidi Enterprises offers a unique and custom approach to information technology solutions. Our team of expert solution developers meet with our clients on a consistent basis and learn their specific requirements to develop custom solutions such as:

> Multi Office Network Connection
> Virtual Desktop Remote Access for roaming / on the road employees
> Internet integration
> Fiber Optics / Wireless Local Area (LAN) and Wide Area Network (WAN)
> Electronic Document Storage and Retrieval
> Email traffic management
> Web based / on the go contact management, calendar sharing and collaboration
> Wireless nationwide laptop internet access
> Custom application and database
> Web based customer communication and document access

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Automated Disaster Recovery

A recent study discovered that, of companies experiencing a "major loss" of computer records, 43 percent never reopened, 51 percent closed within two years of the loss, and a mere 6 percent survived over the long-term For small and medium-sized businesses (SMB’s) in particular, these statistics suggest the necessity of crafting a Business Continuity Planning (BCP) strategy grounded in a robust data backup and recovery solution. Unlike enterprises, many smaller companies cannot afford optimal in-house strategies and solutions in service of BCP. These companies are consequently at an elevated risk of being put out of business due to any major loss of data. Loss of data could mean emails lost, accounting data lost, patient or client files lost, company records lost, client legal records or orders lost and so on. This white paper evaluates the scope of BCP for smaller companies, by examining their challenges, range of existing solutions and their drawbacks. We’ll also discuss how our solution overcomes commonly faced challenges to offer the most comprehensive solution out in the marketplace.:

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