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Module III Pre-test Optical Communication Practicum

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

Estimation of power requirements that is calculated to ensure that the level of receiving power is greater or equal to the level minimum power is the meaning of...

a)

Photodetector

b)

Transmission System Point to Point

c)

Rise Time Budget

d)

Link Power Budget

2.

The design is said to be successful if PRx ≥ Receiver sensitivity, is a condition of calculating of...

a)

Photodetector

b)

Transmission System Point to Point

c)

Rise Time Budget

d)

Link Power Budget

3.

A method for determining the dispersion limits of a fiber optic communication system link is

the meaning of...

a)

Rise Time Budget

b)

Link Power Budget

c)

Photodetector

d)

Transmission System Point to Point

4.

Rules for sorting signal symbols with certain patterns is the meaning of...

a)

Transmission System Point to Point

b)

Channel Encoding

c)

Link Power Budget

d)

Rise Time Budget

5.

LED and LASER is a component type of...

a)

Channel Encoding

b)

Optical Detector

c)

Optical Source

d)

Fiber Optic

6.

The following statement that include characteristic of fiber optic, except...

a)

Emission Pattern

b)

The refractive index of the cladding

c)

The refractive index of the core

d)

Bandwidth or Dispertion

7.

Type of attenuation that permitted along the optical link, except...

a)

Splice Attenuation

b)

Link Attenuation

c)

Connector Attenuation

d)

Cable Attenuation

8.

The power sensitivity limit received by the receiver is...

a)

-27 dBm

b)

-24 dBm

c)

28 dBm

d)

-28 dBm

9.

The following are the requirements of Rise Time Budget, except...

a)

Generally the degradation of transition time digital links NRZ ≤ 70% of the bit period (Tb) and RZ ≤ 35% of the bit period (Tb)

b)

For Single-Mode, in calculate of tsys there is no tmod

c)

For Single-Mode, in calculate of tsys there is tmod

d)

Rise time of the receiver (10% - 90%)

10.

For each bit, the signal level will return to the zero level, so it is called...

a)

Return to Zero

b)

Attenuation

c)

Biner

d)

Non Return to Zero