How are today’s specialty systems made?
They incorporate several standards that enable the use of common ICT infrastructure and increased ability to integrate with other systems
If you’re installing a surface mount box with 8p8c jacks and patch cords above the ceiling what element should these things have
They should all be rated for the space they’re going to be in
When using balanced twisted pair cabling the method is known as MPTL, how long should the length between the equipment and device shouldn’t exceed what length
100m or 328 ft
When can the direct connect method be used?
In plenum spaces where an outlet or patch cords are not plenum rated making it not feasible
When there is no room for a telecom outlet or patch cord
Where it’s not safe or secure for an exposed outlet or patch cord
When a customer doesn’t agree it’s aesthetically cohesive with the facility design
When the buildings system cable is enclosed in conduit and is directly attached to the building system equipment
Should direct connections be limited to devices in fixed locations that arent expected to be replaced?
Yes they should be
What should be used when balanced twisted pair cabling is used for direct connections
Cabling with solid conductors and connectors designed for terminating solid conductors should be used
What’s another option for a direct connection?
Installing cable to an outside location
When cross connections are used at the HCP should an outlet be installed as part of the horizontal cabling link?
No they shouldn’t and this requirement ensures the horizontal channel contains no more than four connections
How should an HCP be installed?
It should be readily accessible and its location should be visibly marked
How far from the TR should the HCP be located
At least 50ft or 15m
What is the most common example of a non standardized ICT termination
Splitting the pairs within one Btp cable between two or more devices
What does the PoE concept apply to?
WAPs, webcams, video cameras, and IP telephones
What is the maximum source power output level?
15.4 W at 44 to 57 volts (nominally 48 volts)
What source power output level do PoE devices provide?
25.5 w at 50 to 57 V
What two practical power source options for PoE are available?
PoE capable switches and mid span devices
What three major areas in security may be part of an installers work?
IDS, ACS, VSS
Give some examples of initiating devices
Motion detectors, glass break detectors, door contacts, duress buttons, temp probes and other inputs
What is video surveillance?
It’s the process of image: capturing, transmitting, processing, viewing, and recording.
What two things can a VSS be in nature
Analog and digital IP
What cable is used for transmission media?
Balance twisted pair, optical fiber Cable and wireless
What connectors does a VSS system use
RS232, 8p8c and optical fiber connectors
What regulates the fire detection and fire alarm systems
The AHJ
What are the main elements of a basic fire alarm system?
The control panel, detection/initiation devices, notification devices and secondary power sources
Where are fire alarm circuits typically installed?
In separate wiring and cabling pathways to meet code requirements, mitigate risk of accidental damage, and to assist keeping the systems alive in an event of a fire
