Olson Technology MUSCLE-EM55X - Manual (Page 54)

OTOT-EM55X/XL Optical Transmitter Rev. x1 www.olsontech.com
53
Changing the OMI
totrms
(AGC on modes only)
The picture below shows, how to adjust the OMI total RMS, in order to optimize the transmission performance in
terms of CNR, CSO, CTB and BER.
Figure 42 — Setting the OMI Total RMS on the OTOT-EM55X
With software release 2.0, the OMI
totrms
(OMI
rms
in the figure beyond) is shown in %. In previous software releases,
OMI
totrms
was shown relative (in dB) to a nominal value. The display in % enables an easy comparison with the graphs
as shown in Figure 18. For that reason, OTOT-EM55X application software release 1.12 and later supports this fea-
ture.
Notes:
• OMI nominal refers to a factory setting and cannot be changed by the user.
• OMI
totrms
setting is only relevant in AGC-on mode.
• The setting range for OMI
totrms
might change slightly from device to device due to production tolerances.