Power Limited Exam 1

These set of notecards will include, Cable Pulling/fishing, Coax and Power Doors, Power Poles and office furniture, Structured Cieling, Rib Relays, and General Info taken from class

How many and what type of cable is typically pulled to each work station in a commercial building?

2 CAT6a Cables

• Data

• Phone

Where is HORRIZONTAL cabling used?

Cabling from closets to devices and workstations

Where is BACKBONE cabling used?

Between closets

What are two wiring configurations used with UTP?

568 - A

568 - B (Widely used everywhere else)

What is the maximum CAT-5e length of cable you can pull for Horrizontal cabling?

300ft

Why are patch panels used?

Easy to reconfigure/make changes

What is a Demarcation Point

The point in which the utility service cables transitions into the home cable; like a service point

Why are velcro straps reccomended over plastic zipties

They support more, they are less tight, and are wider

What is the maximum amount of pulling force you put on a CAT-5e?

25lbs

What is the maximum distance for supporting CAT-5e?

5ft

Can CAT-5e lay in cieling tile?

No, it must be Plenum Rated in order to lay in the cieling tile

What must be done when penetrating through a Fire Wall?

Bring the cavity back up to acceptable fire rating spec

What are 2 advantages to fiver optic cables over copper cables?

• Fast Speeds

• No EMI (Electro Magnetic Interference)

What are some disadvantages to Fiber Optic cable?

• It is fragile

• Expensive

• Not widley available

• Wide bends

What is a Patch Panel?

A panel that allows for easy access to phone and date lines for an entire floor and allows for easy interchangeability

What is a Media Panel?

A panel in a wall used in new residential construction that allows for easy access of cables for Wifi, TV, phone lines, etc.

What does UTP mean?

Unshielded Twisted Pair

What does STP mean?

Shieded Twisted Pair

What does POTS mean?

Plain Old Telephone System

What does EMI mean?

Electro Magnetic Interference

What does PoE mean?

Power over Ethernet

What does PoF mean?

Power over Fiber

What is the lowest grade data cable that can be installed under current 568 standards?

CAT-6a

What is the jack called that is installed at either end of a copper patch cable?

RJ45

What is the female component that a data cable is punched down into and is used in a wall outlet?

Keystone

What is the component called that covers typical work data outlet in a commercial office?

Keystone Faceplate

Where and Why is STP typically used?

They are used in Power Plants and Radio stations; Places with high EMI

Where is UTP typically used?

Every else

What is done with extra data cable when you pull too much to the workstation?

Coil it up at the workstation

What are 3 ways to bring power and data through the middle of a conference room?

• Floor Box

• Power Pole

• Floor Tile

What is the common Coax cable used today?

RG6

What is the fitting that is used to crimp on the end of the Coax?

F’ Compression Connector

What is the device called that splits out coax signals?

Splitter

What is the disadvantage of a splitter?

It will split the data so you won’t have 100% of the original data speed output

What are 3 systems that may require a Power Supply?

• Crash Bars (The bars on doors that depress when push to unlock the door)

• Fire doors

• Mag Lock

What is a Mag Lock?

A lock that has constant power so it is locked until the power to the lock is turned off through a key card

Where is a Mag Lock typically used?

• Child Care Facilities

• Memory Care

What is a Crash Bar?

The bars on doors that depress when push to unlock the door

What is important thing to consider when installing a Power Supply?

Voltage Drop

How many wires are typically need for handicap Paddles

2

What is the typical power required for Power Activated Doors?

120V

How do electric power door holds work?

They have power running through a coil (Inudctor) that creates a magnetic field and that pulls on the door hold

What are 3 common volatges for power door holds?

• 12V

• 24V

• 120V

What type of doors are typically used for door holds?

Fire Doors

What type of circuit is typically used with power door holds?

Fire Alarm System

Where is a power strike located in a door?

In the door Frame/Mullion

Where is a power latch located in a door?

In the door

How is wiring brought to a power strike?

Conduit is run into the frame of the door

How is wiring brought to a power latch?

Conduit is run to the hinge and into the transfer hinge

Why are cell repeaters used?

To boost cell cignal in a building

What is the white material used in coax?

The Dieletric

What is the foild and bradding called in coax cable?

Shielding

What does the Foil and Bradding do in Coax

Holds the signal and blocks out EMI

What hold the signal in a Coax cable?

The Foil

What blocks out EMI in a coax cable?

The brading

What is the name of the Fiber Glass Rods that are used to fish and pull cable across a cieling?

Fish Sticks

Where do you commonly use fish sticks?

Through conduit and cielings

When would Fish Sticks be recoomended?

Going around loops and live conduit/panel

What can be put at the end of a fish stick?

A Leader

What is the name of the string that is used with a Mouse?

Jet Line

What is the name of the pull string that usually comes in a bucket?

Polyline

When you “soap” conductors, what are you actually doing?

You are lubing up the cable/wires to pull through insulation easier

Name some concrete anchors?

• Hammer-in

• Drop-in

• Hollow Wall

What does OSHA require when using a power actuated tool?

• Training

• Postage and signage around where you are using it

• License

• Pick up left over casings

What are where is a sleeve used

Going through Floors and Walls

What must be done at each end of Sleeves

A Bushing and Fire Caulk must be applied

What thickness does fire caulk have to be?

5/8”

What can be used as a backer or support for applying fire caulk?

Mineral Wool

What and where are Dampers used?

• They slow down the spread of fire

  • In Fire Walls and Duct Work

What is a “Remote Control?”

One circuit controlling another circuit

What are the two main parts of a relay?

• Contacts

• Coil (inductor)

On a relay, what side handles the Load?

The Contacts

What voltages can a RIB Relay be connected to?

• 10-30VAC/DC

• 120VAC

Why will your meter read O.L. when trying to read relay coil resistance?

The circuit is incomplete