To accommodate telephone, data, CATV, security and multimedia, a MINIMUM of ________ strands of optical fiber auxiliary disconnect outlet (ADO) cable should be provided.

The correct answer is B. Four. Four strands of optical fiber is the minimum specified by telecommunications cabling standards (such as TIA-570) for an ADO because it provides two duplex pairs - enough to simultaneously support distinct service types like data, CATV, security, and multimedia, with redundancy…

Structured Cabling Systems (Copper and Optical Fiber)

Question

Options

ATwo
BFour
CFive
DSix
EEight

How the community answered

(29 responses)

A
7% (2)
B
79% (23)
D
10% (3)
E
3% (1)

Explanation

Four strands of optical fiber is the minimum specified by telecommunications cabling standards (such as TIA-570) for an ADO because it provides two duplex pairs - enough to simultaneously support distinct service types like data, CATV, security, and multimedia, with redundancy built in. A single pair (two strands) is insufficient because it can only support one bidirectional link at a time, making options A inadequate for multi-service environments. Options C (five), D (six), and E (eight) exceed the minimum requirement - while more strands offer greater flexibility, the question asks for the minimum, and four meets that threshold without over-provisioning. Think of it this way: four = two pairs = two simultaneous services minimum, and the "F-O-U-R" in fiber rhymes with "floor" - it's the floor, or minimum, you must install.

Topics

#Optical fiber#ADO cable#Structured cabling#Multi-service support

Community Discussion

No community discussion yet for this question.

Full RCDD-002 Practice