Interfaces
Page 344 7750 SR Interface Configuration Guide
command can be used to limit the range of sweeping for the automatic control mode and thus achieve faster 
link up.
Parameters dispersion-start — Specifies the lower range limit for the dispersion compensation.
Values -1200 —1200
Default -1200
dispersion-end — Specifies the upper range limit for the dispersion compensation.
Values -1200—1200
Default 1200
sweep
Syntax sweep start dispersion-start end dispersion-end
Context config>port>dwdm>coherent
Description This command allows users to configure the dispersion sweep ‘start’ and ‘end’ values for the automatic 
mode of coherent control. If the user knows the approximate or theoretical residual dispersion of the link, 
this command can be used to limit the range of sweeping for the automatic control mode and thus achieve 
faster link up.
Parameters dispersion-start — Specifies the lower range limit for the dispersion compensation.
Values -50000 — 50000
Default -25500
dispersion-end — Specifies the upper range limit for the dispersion compensation.
Values -50000 — 50000
Default 2000
rxdtv-adjust
Syntax [no] rxdtv-adjust
Context config>port>dwdm
Description This command enables you to adjust the optical receive decision threshold voltage (RxDTV).
Default no rxdtv-adjust