Huawei U2000 is a Network Management system developed by Huawei. One of this system's functions is to monitor network performance and observe optical transceiver health. There have been occasions when the system cannot read correctly 1G CWDM transceiver wavelength.

For example, we had a case when a customer used our 1G 1590nm CWDM transceiver, EDGE Part number: CWDM-1.25G-SFP-40-59, in Huawei OSN 1800. The system does not show wavelength information for this transceiver, which can be useful in the maintenance process of the network.

The solution is for this problem is quite simple. In order for Huawei U2000 to correctly show the wavelength, the wavelength parameter in transceiver coding must end with the center wavelength 1XX1. So if the wavelength parameter inside the module code is 1590nm, Huawei U2000 will not be able to read it, but if 1591nm, then the U2000 system will understand it correctly, and it will be displayed.

If we go into more detail:

This is the wrongly programmed transceiver:
Description=2500Mb/s-1590nm-LC-80km(0.009mm)

This is a correctly programmed transceiver:
Description=2500Mb/s-1591nm-LC-80km(0.009mm)

Huawei U2000, can’t read wavelength of 1G CWDM SFP

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