Unlock instant, AI-driven research and patent intelligence for your innovation.

40G wavelength division transmission equipment OMSP protection switching system and method

A technology of transmission equipment and protection switching, applied in the field of optical communication, which can solve problems such as the inability to meet the requirements of recovery

Active Publication Date: 2018-01-05
FENGHUO COMM SCI & TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

OMSP switching in traditional 40G WDM transmission equipment cannot meet the requirements of service recovery within 50ms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 40G wavelength division transmission equipment OMSP protection switching system and method
  • 40G wavelength division transmission equipment OMSP protection switching system and method
  • 40G wavelength division transmission equipment OMSP protection switching system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] see figure 1As shown, the embodiment of the present invention provides a system for OMSP protection switching of 40G WDM transmission equipment. Compensation, protection channel (tunable dispersion compensation disc) disc, see figure 2 As shown, the PTDC disk includes an optical switch, TDCM (Tunable Dispersion Compensation Module, tunable dispersion compensation module), and a coupler without circuit control.

[0036] see figure 1 As shown, the embodiment of the present invention provides a method for OMSP protection switching of 40G wavelength division transmission equipment, including the following steps:

[0037] S1. Add the protection channel tunable dispersion compensation disk PTDC between the demultiplexing disk and the 40G OTU disk in the 40G WDM transmission equipment. Connect to 40G OTU through fiber jumper;

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a 40G wavelength division transmission equipment OMSP protection switching system and method and relates to the optical communication field. The method comprises steps that PTDC is added between a partial-wave disc and a 40G OTU disc of 40G wavelength division transmission equipment, when the PTDC operates in a standby line, dispersion of the PTDC disc is made to return tozero, through automatic dispersion adjustment of the 40G OTU disc, a residual dispersion value A needing compensation of the standby line is acquired; when the PTDC operates in a main line, automaticdispersion adjustment of the 40G OTU disc starts, a residual dispersion value B needing compensation of the main line is acquired; a dispersion value of TDCM in the PTDC is preset to be A-B through network management; when the main line is in fault, the OMSP is switched to the standby line within 50ms, the PTDC is notified about switching, an optical switch of the PTDC is switched to the TDCM, andthe residual dispersion of the standby line is compensated. The method is advantaged in that OMSP protection switching can be realized within 50ms.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a system and method for OMSP protection switching of 40G wavelength division transmission equipment. Background technique [0002] The dispersion window of 40G WDM transmission equipment is 1 / 16 of that of 10G WDM transmission equipment (for NRZ code pattern), which is less than 50 ps / nm, which can tolerate the distance of 2-3km G.652 optical fiber. In order to expand the residual dispersion window of 40G wavelength division transmission equipment, the current 40G optical forwarding OTU (Optical Transport Unit, optical transmission unit) uses TDCM (Tunable Dispersion Compensation Module, tunable dispersion compensation module) on a single disk, which can be The residual dispersion window is extended to -1200ps / nm~+1200ps / nm to meet the requirements of engineering practicality. However, due to the limitation of the device, the time for TDC to change the step size is relativel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04J14/02H04B10/2525H04B10/038
Inventor 雍博刘中华梅亮龚志宏
Owner FENGHUO COMM SCI & TECH CO LTD