OptiFiber Pro custom test limit: Difference between revisions

From wiki.comcert.com
Jump to navigation Jump to search
VisualWikitext
No edit summary
No edit summary
 
(16 intermediate revisions by the same user not shown)
Line 8: Line 8:
== Solution ==
== Solution ==


Unless specified otherwise, use these values to create one custom limit for testing PC/UPC terminated links and a second custom limit for testing APC terminated links. Please remember that in case of OTDR, "Connector Loss" should be interpreted as "Reflective Event Loss" and "Splice Loss" and "Non reflective Event Loss".
We stronly recommend upgrading to Versiv firmware version 6.8 before continuing.  Unless specified otherwise, use these values to create one custom limit for testing PC/UPC terminated links and a second custom limit for testing APC terminated links.  Please remember that in case of OTDR, "Connector Loss" should be interpreted as "Reflective Event Loss" and "Splice Loss" as "Non reflective Event Loss".


 
 
Line 14: Line 14:
=== Maximum length for <span style="background-color:#00FFFF">PC</span>, <span style="background-color:#00FFFF">UPC</span> and <span style="background-color:#FFFF00">APC</span> terminated links ===
=== Maximum length for <span style="background-color:#00FFFF">PC</span>, <span style="background-color:#00FFFF">UPC</span> and <span style="background-color:#FFFF00">APC</span> terminated links ===


{| style="width: 800px" cellspacing="1" cellpadding="1" border="1"
{| border="1" cellpadding="1" cellspacing="1" style="width: 800px"
|-
|-
! scope="col" style="width: 332px" | Parameter (m)
! scope="col" style="width: 332px" | Parameter (m)
Line 20: Line 20:
|-
|-
| style="width: 332px" | Length
| style="width: 332px" | Length
| style="width: 455px; text-align: right" | N/A
| style="width: 455px; text-align: right" | N/A
|}
|}


Line 27: Line 27:
=== General Settings for <span style="background-color:#00FFFF">PC</span>, <span style="background-color:#00FFFF">UPC</span> and <span style="background-color:#FFFF00">APC</span> terminated links ===
=== General Settings for <span style="background-color:#00FFFF">PC</span>, <span style="background-color:#00FFFF">UPC</span> and <span style="background-color:#FFFF00">APC</span> terminated links ===


{| style="width: 800px" cellspacing="1" cellpadding="1" border="1"
{| border="1" cellpadding="1" cellspacing="1" style="width: 800px"
|-
|-
! scope="col" | Parameter
! scope="col" | Parameter
Line 61: Line 61:
| style="text-align: right" | N/A
| style="text-align: right" | N/A
|-
|-
| Segment Attenuation Coefficient (Max) (dB/km)
| Segment Attenuation Coefficient* (Max) (dB/km)
| style="text-align: right" | 3.0
| style="text-align: right" | N/A (3.0)
| style="text-align: right" | 1.5
| style="text-align: right" | N/A (1.5)
| style="text-align: right" | 1.0
| style="text-align: right" | N/A (0.4)
| style="text-align: right" | 1.0
| style="text-align: right" | N/A (0.4)
| style="text-align: right" | 1.0
| style="text-align: right" | N/A (0.4)
| style="text-align: right" | 1.0
| style="text-align: right" | N/A (0.4)
|-
|-
| Segment Attenuation Coefficient (Min) (dB/km)
| Segment Attenuation Coefficient (Min) (dB/km)
Line 77: Line 77:
| style="text-align: right" | N/A
| style="text-align: right" | N/A
|}
|}
(*) Accurate measurements of Segment Attenuation Coefficient requires a long fiber. Therefore, it is recommended to set this limit to N/A (not applicable) for multi-mode and short singlemode segments. If you have to enforce a&nbsp;limit, use the recommended values between brackets, but first try to explain to your customer/supplier why this is not a good idea.


&nbsp;
&nbsp;


=== Event Settings for <span style="background-color:#00FFFF">PC</span> and <span style="background-color:#00FFFF">UPC</span> terminated links ===
=== Event Settings for <span style="background-color:#00FFFF">PC</span><span style="background-color:#00FFFF">/UPC</span> terminated links ===


{| style="width: 800px" cellspacing="1" cellpadding="1" border="1"
{| border="1" cellpadding="1" cellspacing="1" style="width: 800px"
|-
|-
! scope="col" | Parameter (dB)
! scope="col" | Parameter (dB)
Line 92: Line 94:
! scope="col" | 1625nm
! scope="col" | 1625nm
|-
|-
| Connector Loss (Max)*
| Connector Loss (Max)
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
Line 140: Line 142:
| style="text-align: right" | N/A
| style="text-align: right" | N/A
|}
|}
* choose a value between 0.30 and 0.50 dB in accordance to the quality expectations of the materials you're installing.


&nbsp;
&nbsp;
Line 147: Line 147:
=== Event Settings for <span style="background-color:#FFFF00">APC</span> terminated links ===
=== Event Settings for <span style="background-color:#FFFF00">APC</span> terminated links ===


{| style="width: 800px" cellspacing="1" cellpadding="1" border="1"
{| border="1" cellpadding="1" cellspacing="1" style="width: 800px"
|-
|-
! scope="col" | Parameter (dB)
! scope="col" | Parameter (dB)
Line 157: Line 157:
! scope="col" | 1625nm
! scope="col" | 1625nm
|-
|-
| Connector Loss (Max)*
| Connector Loss (Max)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
Line 166: Line 166:
|-
|-
| Connector Loss (Min)
| Connector Loss (Min)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
Line 173: Line 173:
| style="text-align: right" | N/A
| style="text-align: right" | N/A
|-
|-
| Splice Loss (Max)*
| Splice Loss (Max)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
| style="text-align: right" | 0.30-0.50
Line 182: Line 182:
|-
|-
| Splice Loss (Min)
| Splice Loss (Min)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
Line 190: Line 190:
|-
|-
| Reflectance (Max)
| Reflectance (Max)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | -65.00
| style="text-align: right" | -65.00**
| style="text-align: right" | -65.00
| style="text-align: right" | -65.00**
| style="text-align: right" | -65.00
| style="text-align: right" | -65.00**
| style="text-align: right" | -65.00
| style="text-align: right" | -65.00**
|-
|-
| Reflectance (Min)
| Reflectance (Min)
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | &nbsp;
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
| style="text-align: right" | N/A
Line 206: Line 206:
|}
|}


* choose a value between 0.30 and 0.50 dB in accordance to the quality expectations of the materials you're installing.
(#) APC style connectors aren't used in combination with&nbsp;multi-mode fibers.


<sup>#</sup> APC style connectors aren't used on multi-mode fiber links. You may decide to keep the default values for multi-mode wavelengths.
(**) For older generations (existing) APC connections, a value of -55.00dB may be more appropriate.

Latest revision as of 12:22, 25 August 2023

Introduction

As application limits continue to become more stringent, limits proposed by ISO and ANSI are no longer acceptable to evaluate the quality of a fiber optic infrastructure. Using recent ISO and ANSI test limits is especially problematic when testing multi-mode fiber optic links with more than two connections, which is often the case in datacenters.

 

Solution

We stronly recommend upgrading to Versiv firmware version 6.8 before continuing.  Unless specified otherwise, use these values to create one custom limit for testing PC/UPC terminated links and a second custom limit for testing APC terminated links.  Please remember that in case of OTDR, "Connector Loss" should be interpreted as "Reflective Event Loss" and "Splice Loss" as "Non reflective Event Loss".

 

Maximum length for PC, UPC and APC terminated links

Parameter (m) Recommended value
Length N/A

 

General Settings for PC, UPC and APC terminated links

Parameter 850nm 1300nm 1310nm 1490nm 1550nm 1625nm
Overall Loss (Max) (dB) N/A N/A N/A N/A N/A N/A
Overall Loss (Min) (dB) N/A N/A N/A N/A N/A N/A
Optical Return Loss (dB) N/A N/A N/A N/A N/A N/A
Segment Attenuation Coefficient* (Max) (dB/km) N/A (3.0) N/A (1.5) N/A (0.4) N/A (0.4) N/A (0.4) N/A (0.4)
Segment Attenuation Coefficient (Min) (dB/km) N/A N/A N/A N/A N/A N/A

(*) Accurate measurements of Segment Attenuation Coefficient requires a long fiber. Therefore, it is recommended to set this limit to N/A (not applicable) for multi-mode and short singlemode segments. If you have to enforce a limit, use the recommended values between brackets, but first try to explain to your customer/supplier why this is not a good idea.

 

Event Settings for PC/UPC terminated links

Parameter (dB) 850nm 1300nm 1310nm 1490nm 1550nm 1625nm
Connector Loss (Max) 0.30-0.50 0.30-0.50 0.30-0.50 0.30-0.50 0.30-0.50 0.30-0.50
Connector Loss (Min) N/A N/A N/A N/A N/A N/A
Splice Loss (Max) 0.15 0.15 0.15 0.15 0.15 0.15
Splice Loss (Min) N/A N/A N/A N/A N/A N/A
Reflectance (Max) -35.00 -35.00 -45.00 -45.00 -45.00 -45.00
Reflectance (Min) N/A N/A N/A N/A N/A N/A

 

Event Settings for APC terminated links

Parameter (dB) 850nm# 1300nm# 1310nm 1490nm 1550nm 1625nm
Connector Loss (Max) N/A N/A 0.30-0.50 0.30-0.50 0.30-0.50 0.30-0.50
Connector Loss (Min) N/A N/A N/A N/A N/A N/A
Splice Loss (Max) N/A N/A 0.30-0.50 0.30-0.50 0.30-0.50 0.30-0.50
Splice Loss (Min) N/A N/A N/A N/A N/A N/A
Reflectance (Max) N/A N/A -65.00** -65.00** -65.00** -65.00**
Reflectance (Min) N/A N/A N/A N/A N/A N/A

(#) APC style connectors aren't used in combination with multi-mode fibers.

(**) For older generations (existing) APC connections, a value of -55.00dB may be more appropriate.

Retrieved from "https://wiki.comcert.com/index.php?title=OptiFiber_Pro_custom_test_limit&oldid=8419"