Each port for the channelized ASAP OC-3/STM-1 MDA supports channelization down to DS-0 and accepts one OC-3/STM-1 SFP small form factor pluggable (SFP) module. The same SFP optics used on Nokia’s SONET/SDH MDAs can be used on the channelized ASAP OC-3/STM-1 MDA.
Each channelized OC-3/STM-1 supports up to 512 channels with DS-0 timeslots with per-channel encapsulation configuration (for example, Frame Relay, PPP, cHDLC, ATM). DS-3 TDM channels can be further channelized to DS-1/E-1 channel groups. An E3 TDM channel cannot be channelized and can only be configured in clear channel operation. The MDA is based on a programmable data path architecture that enables enhanced Layer 1 and Layer 2 data path functionality, for example ATM TM features, MDA-based channel or port queuing, or multilink applications like Inverse ATM Multiplexing (IMA).