The B155/622 plug-in card is also known as an STM-1/4 and OC-3/12 interface card. It is software configurable. The card is hot-swappable and can be installed on O9500R and O9400R chassis for SDH/SONET path cross-connection and transportation with or without MSP 1+1 software-configured. SNCP and UPSR mapping for ring protection schemes are supported.
- Dual ports STM-1/4 (OC-3/12) plug-in card
- Software configurable STM-1/4 and OC-3/12 interface card
- With or without MSP (1+1) card-level protection
- SNCP/UPSR ring protection compatible
- RoHS compliant