Knowledge

Optical module FEC function

With the development of optical communication system with longer distance, larger capacity and higher speed, especially when the single wave rate evolves from 40g to 100g or even super 100g, chromatic dispersion, nonlinear effect, polarization mode dispersion and other transmission effects in opt... Read More

GPON FTTx function entity

preface FTTH means fiber to the home and directly to user terminals. This is also the technology we have been pursuing and exploring for more than 20 years. Due to the continuous breakthroughs in cost, technology, demand and so on, this technology has been widely promoted and developed. At pres... Read More

GPON Network Architecture

1) Preface: With the rapid emergence of various businesses, more and more industries realize that it is necessary to break through the “bottleneck” of bandwidth as soon as possible, and the optical fiber is by far the best transmission medium. Optical fiber has two advantages over the... Read More

 Abnormal reading of optical module information – check message Statistics

The function of viewing message statistics: enter “show interface” in the command to view the wrong packets in and out of the port, and then make statistics to determine the growth of the volume, to judge the fault problem. 1) First, CEC, frame, and throttles error packets appear at t... Read More

Troubleshooting for DDM abnormalities in optical modules

When the interface of the installed optical module fails to work properly, you can troubleshoot the problem according to the following three methods: 1)Check the Alarm information of the optical module. Through the alarm information, if there is a problem with reception, it is generally caused by... Read More

Optical Power Testing

The value of the optical power will have the most intuitive and obvious influence on the signal during the transmission process, and this optical power is also the easiest to test. This value can be tested through the optical power. Optical power – use an optical power meter to test whether... Read More