Procedures To Install Structured Cabling Systems Flashcards
What two divisions of construction specifications are used for telecommunications?
Divisons 16 and 17
Identify three cabling installation details that should be included in the cabling installation drawings
Cable size, cable quantity, cable description, cable routing, supporting hardware, termination
Identify four categories of information that should be included in the plans for cable installation
list of materials, scope of work, schedule, any other documents that detail the process or method of installation
Name four desirable attributes of a cable installer
- Technically competent
- Safety conscious
- Professional attitude and appearance
- Communicate effectively
When you install large volumes of backbones or horizontal cables, how many cables should be placed in a group?
No more than 15-20 cables should be placed in a group
Identify three cable support system components
Conduits, cable trays, wire ways, underfloor systems, ceiling pathways/space, plywood backboards and associated support hardware
Is conduit a good pathway choice when flexibility is required?
No
Name three underfloor systems for distributing cable
Underfloor duct, cellular floor, raised access floor
Can fire-retardant plywood be painted?
No
Describe what can occur to data transmission on copper cable if the cable tie is tied too tightly
Loss of signal, increased crosstalk and attenuation, cable failure
Identify an advantage of wire saddles or guides over ty-wraps
Wire saddles or guides can support a large volume of cabling; cables can be added or removed without having to cut ty-wraps
Kinked cable simply needs to be straightened out to regain normal function. True or False?
False. Damage could be done to the conductors or insulation, lowering the transmission rates or leading to cable failure
What is the pulling tension of Cat 5 horizontal distribution cable?
25 lbw (110 N)
What is the most effective method of preventing EMI sources from interfering with cable?
Have enough space between the EMI sources and the cable
Installing photocopiers in telecommunications closets is a good way to save space. True or False?
False
Higher categories of cable (Cat 5e, 6, 7) are more robust and therefore do not require as careful handling as Cat 3 cable. True or False?
False
What information should the installer mark on the outlet jacks?
Cable number, jack number, transmission type the jack supports (data, telephone)
What is the main termination component in a telecommunications room?
Punchdown block
Which industry is still a major user of the 66 block?
Telephone industry
Identify two connecting blocks that are in use now for LAN wiring
110 block, BIX block
Identify two different methods of cable termination and interconnection to equipment in the telecommunications room
patch panels, cross-connects, interconnects
What are the three conductors on the switchboard jack?
tip, ring, sleeve
What is the most common termination method for twisted-pair wire?
Insulation displacement conductor (IDC)
What point should be your first choice for the telecommunications bonding system?
The buildings service grounding electrode system