ISO/IEC 14763-3:2024: Difference between revisions

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= Introduction =
= Introduction =
This is an extract of the most recent publication of the standard ISO/IEC 14763-3 in 2024.  Information technology - Implementation and operation of customer premises cabling - Part 3: Testing of optical fiber cabling.  For the complete publication, please visit ISO Store.
This is an extract of the most recent publication of the standard ISO/IEC 14763-3 in 2024.  Information technology, implementation and operation of customer premises cabling, part 3, testing of optical fiber cabling.  Please purchase the full document at [https://www.iso.org/store.html ISO Store].


= Solution =
= Solution =
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{| class="wikitable"
{| class="wikitable"
|+
|+
!Cable type
!Cable type*
!Adapter loss embedded (dB)
!Adapter loss embedded (dB)
!Adapter loss first and last (dB)
!Adapter loss first and last (dB)
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!Length (m)
!Length (m)
|-
|-
|OS1
|OS1/OS1a
|0.75
|0.75
|0.7
|0.7
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==== Example 3 - Multi-mode permanent link ====
==== Example 3 - Multi-mode permanent link ====
Consider a permanent link comprising:
Consider a '''permanent link''' comprising:


• optical fiber conforming to OM3 of ISO/IEC 11801-1;
• optical fiber conforming to '''OM3''' of ISO/IEC 11801-1;


• a total length of 100 m;
• a total length of 100 m;
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• at 850 nm: (0,1 × 3,5 dB) + (2 × 0,45 dB) = 1,25 dB;
• at 850 nm: (0,1 × 3,5 dB) + (2 × 0,45 dB) = 1,25 dB;


• at 1 300 nm: (0,1 × 1,5 dB) + (2 × 0,45 dB) = 1,05 dB.
• at 1 300 nm: (0,1 × 1,5 dB) + (2 × 0,45 dB) = 1,05 dB


==== Example 4 - Single-mode permanent link ====
==== Example 4 - Single-mode permanent link ====
Consider a permanent link comprising:
Consider a '''permanent link''' comprising:


• optical fiber conforming to OS2 of ISO/IEC 11801-1;
• optical fiber conforming to '''OS2''' of ISO/IEC 11801-1;


• a total length of 500 m;
• a total length of 500 m;
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• two panel connections in accordance with ISO/IEC 11801-1;
• two panel connections in accordance with ISO/IEC 11801-1;


• two optical fibre splices in accordance with ISO/IEC 11801-1.
• two optical fiber splices in accordance with ISO/IEC 11801-1.


Using the enhanced 3-jumper or 1-jumper reference method, the limit would be as follows:
Using the enhanced 3-jumper or 1-jumper reference method, the limit would be as follows:
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• at 1 310 nm: (0,5 × 0,4 dB) + (2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB;
• at 1 310 nm: (0,5 × 0,4 dB) + (2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB;


• at 1 550 nm: (0,5 × 0,4 dB) +(2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB.
• at 1 550 nm: (0,5 × 0,4 dB) +(2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB
 
 
''*OS1, OM1 and OM2 are no longer to be used with new installations.''

Latest revision as of 05:50, 7 June 2024

Introduction

This is an extract of the most recent publication of the standard ISO/IEC 14763-3 in 2024. Information technology, implementation and operation of customer premises cabling, part 3, testing of optical fiber cabling. Please purchase the full document at ISO Store.

Solution

Table

Cable type* Adapter loss embedded (dB) Adapter loss first and last (dB) Splice loss Fiber loss @ 850nm (dB/km) Fiber loss @ 1300nm (dB/km) Fiber loss @ 1310nm (dB/km) Fiber loss @ 1550nm (dB/km) Length (m)
OS1/OS1a 0.75 0.7 0.3 - - 1.0 1.0 5000
OS2 0.75 0.7 0.3 - - 0.4 0.4 5000
OM1, OM2, OM3, OM4, OM5 0.75 0.45 0.3 3.5 1.5 - - 2000

Examples

Example 1 - Multi-mode channel

Consider a cabling channel comprising:

• optical fiber conforming to OM4 of ISO/IEC 11801-1;

• a total length including equipment cords of 100 m;

• two panel connections in accordance with ISO/IEC 11801-1;

• equipment cords terminated with connectors in accordance with ISO/IEC 11801-1.

The channel limit at 850 nm would be: (0,1 × 3,5 dB) + (2 × 0,75 dB) = 1,85 dB

The channel limit at 1 300 nm would be: (0,1 × 1,5 dB) + (2 × 0,75 dB) = 1,65 dB

Example 2 - Single-mode channel

Consider a cabling channel comprising:

• optical fiber conforming to OS2 of ISO/IEC 11801-1;

• a total length including equipment cords of 500 m;

• two panel connections in accordance with ISO/IEC 11801-1;

• two optical fiber splices in accordance with ISO/IEC 11801-1;

• equipment cords terminated with connectors in accordance with ISO/IEC 11801-1.

The channel limit at 1 310 nm would be: (0,5 × 0,4 dB) + (2 × 0,75 dB) + (2 × 0,3 dB) = 2,3 dB

The channel limit at 1 550 nm would be: (0,5 × 0,4 dB) + (2 × 0,75 dB) + (2 × 0,3 dB)= 2,3 dB

Example 3 - Multi-mode permanent link

Consider a permanent link comprising:

• optical fiber conforming to OM3 of ISO/IEC 11801-1;

• a total length of 100 m;

• two panel connections in accordance with ISO/IEC 11801-1.

Using the 1-jumper reference method, the limit would be as follows:

• at 850 nm: (0,1 × 3,5 dB) + (2 × 0,45 dB) = 1,25 dB;

• at 1 300 nm: (0,1 × 1,5 dB) + (2 × 0,45 dB) = 1,05 dB

Example 4 - Single-mode permanent link

Consider a permanent link comprising:

• optical fiber conforming to OS2 of ISO/IEC 11801-1;

• a total length of 500 m;

• two panel connections in accordance with ISO/IEC 11801-1;

• two optical fiber splices in accordance with ISO/IEC 11801-1.

Using the enhanced 3-jumper or 1-jumper reference method, the limit would be as follows:

• at 1 310 nm: (0,5 × 0,4 dB) + (2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB;

• at 1 550 nm: (0,5 × 0,4 dB) +(2 × 0,7 dB) + (2 × 0,3 dB) = 2,2 dB


*OS1, OM1 and OM2 are no longer to be used with new installations.