Paragon-neo/100G: Which optics/transceivers can I use?

PAM4

Release 7 introduces 400G and 50G PAM4 optical interfaces. To achieve optimal timing performance with this release, specific optical modules as listed below MUST be used:

SyncE Jitter

The modules listed below are those that MUST be used for SyncE jitter testing. These modules have been tested by Calnex to ensure that clock recovery can be bypassed and that they have sufficient bandwidth to allow the jitter performance of the device to be tested accurately. These modules are also known to operate correctly for PTP and SyncE Wander.

SyncE Wander and PTP

For PTP and SyncE Wander on non-PAM4 interfaces, the following modules are known to operate correctly (in addition to those above).

For SyncE wander and PTP at 1G and 10G we expect all correctly configured modules to operate correctly. At other line rates we expect most correctly configured modules to operate correctly.

Known Exceptions

High Power Modules

Some high power modules appear to have their transmitters disabled by default. To enable the transmitter, it is necessary to write to specific register locations in the module. If you are using a high power module and the module is recognised by Paragon but you cannot establish a link when connected from Paragon port 1 to port 2, please raise a ticket in the Calnex Service Desk (if you have valid CSS) or contact support@calnexsol.com.

These modules can be used with Paragon - enabling the transmitters is performed using a separate utility.

Other

• Hirose, LTD1302-BH: Module does not support multi-byte read. Supported by Paragon-neo version 01.00 and later

• FS, SFP28-25GSR-85: Some of these modules are configured in a way that Paragon-neo does not recognise; others appear to be OK

• Finisar, FTLX1472M3BCL: These modules support a range of rates from 8.5Gb/s to 11.3Gb/s for Fibre Channel, SDH/SONET and 10GbE. When the CDR is disabled (which Paragon will do under certain circumstances), the module will set the CDR for 8.5Gb/s Fibre Channel and so no link will be able to be established.

Related articles

• PDF File
  Application Notes > CX3003_P-100G G.8273.2 Conformance Testing.pdf
• PDF File
  Test Guides > CX3009_v5.0_G.8273.2 BC Conformance Test.pdf
• PDF File
  Test Guides > CX3010_v4.0_G.8262.1_G.8262 EECs Conformance Test.pdf
• PDF File
  Test Guides > CX3013_v6.0_G.8273.4 Conformance Test.pdf
• PDF File
  Test Guides > CX3014_v5.0 - Paragon-neo - O-RAN O-RU WG4.CONF Test Guide.pdf
• PDF File
  Test Guides > CX3016v2.0 - Test Guide - Testing a PRTC to ITU-T G.8272 using Paragon-neo.pdf
• PDF File
  Test Guides > CX3019_v3.0 - Paragon-neo - O-RAN O-DU WG4.CONF Test Guide.pdf
• PDF File
  Test Guides > CX5026_P-100G G.8262 SyncE Testing.pdf
• Page:
  G.8273.2 (7.3.1, 7.3.2, 7.3.3): Noise Transfer
• Page:
  Paragon-100G: Getting Capture Files and Logs