Unlike many communication networks that use a standard cable type, fiber optic networks are generally built with custom cables engineered for each installation. Ultimately, a manager must approve the cable plant design and sign the purchase order. They have to make a decision—is this the right cable? Well, is it?
Created by: Jim Hayes
1. Outdoor fiber optic cables buried underground are generally ________ cables.
B. Loose tube
D. Any of these
2. Indoor fiber optic cables are generally ________ cables.
A. Tight buffer
3. All indoor fiber optic cables must be rated for ________.
A. Pulling strength for installation in long conduits
B. Abrasion to prevent damage from scuffing when installed above ceilings
C. Crush loads to allow mixing with copper cables in cable trays under the floor
D. Flammability to meet building and fire codes
4. Short indoor fiber networks, especially those at speeds
at or below 10 gigabits per second, generally use
5. Outside plant cable links are longer, and often faster, so they generally contain ________ fibers.
6. Aerial fiber optic cables can be installed as ________.
A. Loose tube cable lashed to a messenger or another cable
B. All-dielectric, self-supporting cable
C. Fibers inside electrical conductors
D. All of the above
7. All outdoor cables are water-blocking and designed to prevent moisture damage to the optical fibers.
8. To prevent rodents damaging fiber optic cables, ________ is added to the cables under the outer jacket.
B. Glass shards
C. Metallic armor
D. A second layer of jacket
9. Underground outdoor fiber optic cables, either in conduit or direct-buried, are generally placed about ________ inches below the surface.
10. Whenever cables are buried underground, there should always be ________ above them in the trench.
E. A marker tape to facilitate locating the cable