Structured Cabling T2 Flashcards
Define the following terms and list their purposes: TMGB TGB TBB GE Bonding Conductor
TMGB: Telecommunications Main Ground Busbar - central attachment point for the TBB.
TGB: Telecommunications Grounding Busbar - grounding connection point for telecomm systems in area.
TBB: Telecommmunications Bonding Backbone - conductor interconnects all TGB’s with TMGB
GE: Grounding Equalizer - interconnects elements of telecom grounding infrastructure.
Bonding Conductor: provide the low-impedance fault-current path to the electrical supply source
What do the following standards cover?
ANSI/TIA/EIA-570-B
ANSI/TIA/EIA-606-A
ANSI/TIA/EIA-607
ANSI/TIA/EIA-570-B - Residential telecommunications
ANSI/TIA/EIA-606-A - Administration
ANSI/TIA/EIA-607 - Grounding and Bonding
Describe the two grades of residential cabling
Coax and Cat 5E
List and describe the four TIA/EIA pathways and spaces separate classes of administration
Class 1 - addresses the administration needs of a premise that is served by a single equip. room
Class 2 - provides for the telecommunications infrastructure administration needs of a single
building or of a tenant that is served by a single or multiple telecommunications spaces (e.g., an ER with one or more TRs) within a single building.
Class 3 - addresses the needs of a campus, including its buildings and outside plant elements.
Class 4 - addresses the needs of a multi-site/campus
system.
Both ends of horizontal cable shall be labeled within how far from each other?
12”
List the four minimum locations to be wired within each residence:
kitchen, bedroom, family room, den
What is the difference between grounded and bonded?
Grounded: connects to ground or to a conductive body that extends the ground connection.
Bonded: connects to an established electrically conductive path to ensure electrical
continuity and capacity
When wiring residential communication systems, what are the tip and ring colors for pair 1 and 2 (quad telephone wire)?
- Tip - Green Ring - Red
2. Tip - Black Ring - Yellow
Where is the communications utility drop wire terminated?
Residential: NID Commercial: Entrance Facility
What is the maximum distance that you can run a #6 AWG bonding conductor?
20 ft or shortest possible.
What must happen if the distance from the residential demarcation point to the furthest outlet is 510 ft?
Notify the service provider
Why are the primary protectors bonded to the TMGB?
trip the breaker
What is the minimum bend radius for the bonding conductor?
8 times the diameter
