Interface Configuration
7750 SR Interface Configuration Guide Page 29
Channelized CHOC-3/STM-1 MDA
Each 4-port channelized 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
Alcatel-Lucent’s SONET/SDH cards can be used on the channelized OC-3/STM-1 MDA.
Each channelized OC-3/STM-1 supports 512 channels with DS-0 timeslots that are used in the
DS-1 channel-group. 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.
This MDA is not supported on the 7450-ESS.
Channelized Any Service Any Port (ASAP) CHOC-3/STM-1
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 Alcatel-Lucent’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 L1 and L2 data path functionality, for
example ATM TM features, MDA-based channel/port queuing, or multilink applications like
Inverse ATM Multiplexing (IMA).
Channelized OC-12/STM-4 ASAP MDAs
The 4-port channelized OC-12/STM-4 variant of the ASAP MDAs have features and
channelization options similar to the 4-port channelized OC-3/STM-1 ASAP MDA.
DS-3 TDM channels can be further channelized to DS-1/E-1 channel groups. An E-3 TDM
channel cannot be channelized and can only be configured in clear channel operation.
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