The ADTRAN OC-3 SONET Expansion Module is designed specifically for the OPTI-6100 Chassis. This SFP module (OMM3S) enables termination of OC-3 fiber circuits in terminal mode, effectively converting optical signals into STS-3 digital electrical signals for seamless distribution through the backplane wiring to tributary modules.
Adtran 1184502L11 OC-3 SONET Expansion Module for OPTI-6100