Fibre Flashcards

(31 cards)

1
Q

what does BFA stand for

A

bare fibre adaptor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does SC stand for

A

subscriber connector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what does STPC stand for

A

straight tip physical contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what does FCPC stand for

A

face contact/physical contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does LC stand for

A

Lucent connector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does MTRJ stand for

A

mechanical transfer registered jack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what does APC stand for

A

angle physical connector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is micro bending?

A

micro bends are caused when external pressure causes any amount of permanent damage to the core/cladding interface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is macro bending?

A

caused by exceeding the bend radius of the cable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

name 2 items/tools you would use to prepare a primary coated fibre for splicing

A

eye protection
rule or template
IPA
lint free wipes
3 step stripper
cleaver
cinbin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the main purpose of the primary coating

A

to protect the core and the cladding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

why is spare fibre coiled inside a patch panel

A

to allow for re-termination possible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the purpose of the v-groove of a fusion splicer

A

to locate and hold the fibre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

name 2 items/tools you would use to prepare a secondary coated fibre for splicing?

A

eye protection
rule or template
shears
3 step stripper
cleaning solutions/lint free wipes
cleaving tool
cinbin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

the class of laser being used as a light source can be determined by what

A

the attached safety label

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what are the 4 hazards

A

light sources
equipments
chemicals
glass

17
Q

name a type of photodiode used in fibre optics

A

P-I-N photo diode
avalanche photo diode
P-N photo diode

18
Q

what colour is used for OM1

19
Q

what colour is used for OM2

20
Q

What colour is used to identify OM3/OM4

21
Q

what colour is used for OM5

22
Q

what colour is used for OS1a/OS2

23
Q

what colour is used to identify an APC connector

24
Q

for what purpose is loose tube cable used?

A

external connection between buildings in horizontal plane

25
advantages of singlemode fibre over muiltimode
lower attenuation over long distance much larger bandwidth wider repeater spacing eliminates modal dispersion
26
list 2 safe working practices when working with chemicals
do not inhale do not ingest do not smoke or use around a naked flame ventilate working area well
27
what is one of the drawbacks of continuity testing with VLS
only gives a visible indication does not give a loss value does not give a distance measurement
28
which part of an all-glass fibre has a variable diameter
the core
29
what must you check before commencing testing on fibre
ensure the fibre is not carrying live data remove tx & rx ensure you have the correct fibre test leads
30
what are the two indexes of multi-mode fibre
stepped index graded index
31