OF Testing ADC KRONE Requirements V7_1&3T Dr2Page 1 of 12
PERFORMANCE TESTING

OF OPTICAL FIBRE LINKS

FOR COMPLIANCE TO ISO/IEC 11801

Using the test methods set out in ISO/IEC 14763-3 - Testing of optical fibre cabling
Main changes from previous Version 6;

 Item 8 3-Test Cord Method for Reference Setting is default method
 Item 10 Field Calibration Cord, Launch & Tail Cords shall all have Reference Connectors
 Item 11 Method of Removal of Field Calibration Cord Adaptors for Link Testing
 Item 14 Insertion Loss for Reference and Non-Reference Connectors
 Item 15 Example of Loss Budget Calculation Updated for Reference Connectors
 Item 16 Links of 1/10GBE or any Channel to be Tested in 2 x Dir. at 2 x Wavelengths
 Item 16 Links of Known Connectors for non-1/10GBE runs can be Tested in 1 x Dir.
 Item 17 Qualification of Launch Cords
 Item 17 Use adaptors at power meter to suit the Launch Cord & Tail Cord as necessary.
 Item 18 Qualification of Tail & Field Calibration Cords
 Item 19 The 3-Test Cord Reference Setting Method
 Item 21 Reference Setting on LSPM Using the 1-Test Cord Method
 Item 22 Qualification of Tail Cord for 1-Test Cord Method
 Item 23 The 1-Test Cord Reference Setting Method for Non-1/10GBE Installations Version 7_1&3T Draft 2

ADC KRONE (Asia Pacific)

OF Testing ADC KRONE Requirements V7_1&3T Dr2Page 2 of 12
OPTICAL FIBRE TESTING FOR COMPLIANCE TO ISO/IEC 11801

1 All Optical Fibres, including Per-Terminated Optical Fibres shall be CLEANED after
installation and tested as a LINK for:
0 Visual inspection of all ends Recommended
1 Continuity and Maintenance of Polarity Required
2 Length Required
3 Propagation Delay Required
4 Optical Attenuation of Link: 2 x wavelengths Required (See Item 16)
[LINK testing includes the 2 x end connectors. CHANNEL testing does not include the 2 x end connectors.]

2 Visual inspection is not mandatory but if done, use a minimum x100 magnification for MMF,
x200 for SMF, both conducted to protect the viewer’s eyes. The core is a ”PASS” if it is
round, clear & featureless. The inner 1/2 of cladding is a ”PASS” if it is free of chips & cracks
but it may have some polishing marks. The outer 1/2 of cladding may contain some polishing
marks and chips but any chips must be less than 25% of the cladding circumference.

3 Continuity and Maintenance of Polarity of each optical fibre termination is checked
ensuring that “A” at the Near-End is “B” at the Far-End, and visa-versa. This can be done by;
1. visible light (eg a red light source) and inspecting opposite ends at the same time, or
2. using an LSPM that has been connected to the fibre at the far end, or

YES – Use either 3-Test Cord Method or 1-Test Cord Method of Reference Setting
(Eg. SC on tester and SC on both ends of Link)

OF Testing ADC KRONE Requirements V7_1&3T Dr2Page 3 of 12

9 Use of Mandrels or Coils (for both 3 & 1-Test Cord Methods)
For MMF, the LSPM Tester must have the correct Coupling Power Ratio for the cable under
test. Alternatively, this can be achieved by using a Mandrel Wrap on the Launch Cord for
mode stripping during Reference Setting and Testing.
For a 3 mm Launch Cord, 5 turns on 17 mm Ø for 62.5 µm (OM1)
5 turns on 22 mm Ø for 50 µm (OM2 and OM3)
For SMF, the LSPM launch cord shall have at least 2 x turns of 40±5 mm diameter, air-coiled
or on a mandrel, for stripping light out of the cladding and more consistent readings.

10 Test Cords and Field Calibration Cords (for both 3 & 1-Test Cord Methods)
All Test Cords & Field Calibration cords shall be Qualified. (See Item 17 for procedure)
Launch and Tail Cords for MMF & SMF LSPM testing shall be 1m to 5m each and shall
have a Reference Connector at one end.
Field Calibration Cord shall not exceed 2m in length and shall have Reference Connectors
at both ends.
Reference Connectors shall be the same type of connectors as the cabling to be tested.
Mated Reference Connectors shall have an attenuation of
≤ 0.10 dB for MMF, and ≤ 0.20 dB for SMF.

11 Field Calibration Cord and Adaptor Removal (for 3-Test Cord Method)
For both MMF and SMF cabling, after the 3-Test Cord Reference Setting has been done, the
central Field Calibration Cord shall be removed and the cabling under test connected.
For a Link, the 2 x adaptors are removed with the field calibration cord.
[For a Channel, the 2 x adaptors remain on the launch and tail cords.]


MMF
at 850 nm
at 1300 nm

3.50 dB/km
1.50 dB/km
SMF
at 1310 & 1550 nm

1.00 dB/km
Note 1 Insertion Loss
Mated Reference to Reference Connector is 0.10 dB MMF and 0.20 dB SMF
Mated Reference to Non-Reference Connector is 0.30 dB MMF and 0.50 dB SMF
Mated Non-Reference to Non-Reference Connector is 0.75 dB MMF and SMF
{ Ref ISO/IEC 14763-3 Tables 3 & 4}

1 x Mated Connection
i.e. one
Ref/Non-Ref Connection
1/2
1/2
Reference Connector
Connector on installed cabling
Connector device (general)
198m
FD
ER
1
1
1m Splice

1300
= 1.50 dB maximum @ 1300 nm

Therefore, the tester readings must be
less than the maximum Power Loss Budget of;

16 Test Wavelength and Direction

Horizontal & Backbone Cabling, Within The Same Building
Where the MMF and SMF Link is to be used
for 1/10GBE or is a channel or has unknown
connectors, the test shall be done at:
Both wavelengths, in 2 x direction using LSPM Launch & Tail Cords.

The single reported Test Result at each wavelength shall be the single highest reading from
either direction, recorded to at least 2 decimal places.
{ Ref ISO/IEC 14763-3 Cl 9.1.1.3}
(Not the lowest reading, and not an average reading of both directions for LSPM testing)

Some installers choose to use only OTDR testing and not do LSPM testing. If this is done,
ADC KRONE will only accept the results if the average highest OTDR reading from
both
directions is calculated and written into an electronic record of results along with the PLB.

For MMF and SMF Links that have
known connectors and are not for 1/10GBE, test at;
Both wavelengths, in just 1 x direction using LSPM Launch & Tail Cords.

OTDR launch & tail cords are typically Launch cord 100 m min
Tail cord 50 m min

OF Testing ADC KRONE Requirements V7_1&3T Dr2Page 5 of 12

17 Qualification of Launch Cord (Step 1)
Launch & Tail Cords shall have Reference Connectors one end, tester connectors other end.
Field Calibration Cords shall have Reference Connectors on both ends. (See Item 10)

For MMF, apply a Mandrel Wrap in the Launch Cord L1, 5 turns on 17 mm Ø for 62.5 µm
5 turns on 22 mm Ø for 50 µm

For SMF, apply coils in the Launch Cord L1 at least 2 x turns of 40±5mm
diameter air-coiled or on a mandrel.

Clean both the test cord connector ends. Connect L1 at the light source. Use an adaptor to
suit the cord at the power meter and connect. The adaptor is not included in the test results.
Place the test cord in such a way as to minimise movement during testing.
Turn on the light source and power meter and let them stabilise for several minutes.
Most meters allow you to set this reading to “0.00 dB”. The LSPM is now referenced to “Zero”.
.

are now Qualified as acceptable for use in immediate LSPM testing.

The next step is to do the Reference Setting on the LSPM using the 3-Test Cord Method.
DO NOT disconnect L1
from the light source.
If disconnection
occurs, repeat Step 1.
Loss ≤ 0.10 dB for MMF
≤ 0.20 dB for SMF
DO NOT turn off the light
source or power meter
between measurements.
Light
Source
Power
Meter
L1
Use an adaptor
to suit the cord
T1
L1
Light
Source
Power
Meter
Reference
Connector
Use an
adaptor
to suit