Chapter 11 and 12 - Test Equipment and Optical Testing

Question 1

What is used for cable acceptance test from manufacturer?

Answer 1

OTDR

Question 2

What are optical loss test sets used for?

Answer 2

Linked via jumpers at patch panels, interconnecting the span to be tested.

Question 3

What does an OTDR do?

Answer 3

Measure loss as dB and dB/km.

Question 4

What are visual tracers (VFLs) used for?

Answer 4

To trace fiber routes for end to end continuity and locate fiber faults.

Question 5

What nanometer range do Visual Fault Locators operate at?

Answer 5

630 - 670 nm

Question 6

What class is a visual tracer/visual fault locator?

Answer 6

Class II or Class IIIA

Question 7

What are digital video inspection scopes used for?

Answer 7

To inspect the end faces of a ferrule used in plugs and to inspect bulkhead connectors. Safer than microscopes

Question 8

What piece of equipment uses a red light laser?

Answer 8

Visual Tracer

Question 9

Tier 1 testing?

Answer 9

Attenuation testing

Question 10

Tier 2 testing?

Answer 10

OTDR testing

Question 11

What type of light does multimode fiber’s use?

Answer 11

LED or VCSELs

Question 12

What is the acceptable mandrel diameter for common multimode cable types?

Answer 12

5 wraps

Question 13

What should be done to all connectors before testing?

Answer 13

Cleaning

Question 14

What type of light source is used to test OM3 and OM4 fibers?

Answer 14

VCSELs

Question 15

What type of light source is used to test OM1 and OM2 fibers?

Answer 15

LEDs

Question 16

What’s the difference between optical return loss and reflectance?

Answer 16

ORL is the sum of all reflectance

Question 17

What type of equipment can measure ORL and reflectance?

Answer 17

OTDR