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Insert the link, Fls 101 fiber optic light source, Fpm 101 fiber optic power meter – Extron Electronics Fiber Optic Test Set Setup Guide User Manual

Page 7: Extron

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7

Insert the Link

14.

Once the loss value is acceptable (< 0.75 dB) disconnect both the transmit and receive
reference cables from the coupler or bulkhead.

NOTE: Do not disturb either reference cable at their meter connections.

15.

Insert the link to be tested by connecting it to the free ends of the transmit and receive
reference cables using appropriate couplings, or connect the reference cables to the
bulkhead connections of the link.

16.

Observe the displayed value. The link cable insertion loss is displayed in dB. The two
examples below show a multimode and singlemode fiber link being measured using
dual WAVE ID.
The first example shows a multimode link. The 850 nm wavelength is reading a 3.65 dB
loss and the 1300 nm wavelength is reading a 4.07 dB loss.
The second example is a singlemode fiber. The 1310 nm wavelength is reading a 1.45 dB
loss and the 1550 nm wavelength is reading a 1.49 dB loss.

FLS 101
Fiber Optic
Light Source

Singlemode Fiber

Under Test

Coupler

or

Bulkhead

Mandrel

Multimode Fiber

Under Test

FPM 101
Fiber Optic
Power Meter

Transmit Reference

Cable

Receive

Reference Cable

Transmit Reference

Cable

Receive

Reference Cable

FLS 101
Fiber Optic
Light Source

FPM 101
Fiber Optic
Power Meter

Coupler

or

Bulkhead

Coupler

or

Bulkhead

Coupler

or

Bulkhead

Loop

9V

850nm 1300nm

1310nm 1550nm

Tone

1310nm
1550nm

850nm

1300nm

CW

CW

FIBER OPTIC LIGHT SOURCE

Extron

dB

dBm

Ref

Set

Extron

Optical Power Meter

WAVE ID

9V

850nm 1300nm

1310nm 1550nm

Tone

1310nm
1550nm

850nm

1300nm

CW

CW

FIBER OPTIC LIGHT SOURCE

Extron

dB

dBm

Ref

Set

Extron

Optical Power Meter

WAVE ID

nm

dB

nm

dB

nm

dB

nm

dB

WAVE ID

nm

dB

nm

dB

850

3.65

1300

4.07

WAVE ID

nm

dB

nm

dB

1310

1.45

1550

1.49

FLS 101

FIBER LIGHT SOURCE

MM

SM

POWER

FLS 101

FIBER LIGHT SOURCE

MM

SM

POWER

POWER

FPM 101

FIBER POWER METER

POWER

FPM 101

FIBER POWER METER