VICTORL,
In the OPTI-6100 Maintenance and Troubleshooting Guide (Document Part Number: 61184500L1-6M), on PDF page 266 of 306 is the following: "Signal Degrade STS-1 CR/MN SD-P adgenPathSdAlm"
In the OPTI-6100 Installation and Turn-Up Guide (Document Part Number: 61184500L1-5M), on PDF page 253 of 436 is the following: "Signal Degrade 10E-5 (default)"
I would start looking at the OMM's PERFORMANCE MONITORING menu as mentioned on page 231 of 306 of the "Maintenance" guide above.
Hope this helps.
Regards,
BMULLAR