Anatomy of the DTN

The key elements of the DTN Digital ROADM include:

• The DTN chassis provides the physical housing, electrical connectivity between line modules and Embedded Software Intelligence via a GMPLS control and management plane. The DTN is available in two chassis options: the DTC with 23" width for telco rack applications, and the MTC with 19" width for enterprise, data center and other 19" rack applications.

• The Band Mux Module (BMM) that provides mux/demux from the 40 or 80 wavelength channels on the fiber into the appropriate 10-wavelength bands that are passed to the DLM. Inbound pre-amp, outbound booster amp, and Optical Supervisory Channel (OSC) functions are included in the BMM.

• Up to four Digital Line Modules (DLMs), each with 100Gb/s of DWDM line capacity, and including the Photonic Integrated Circuits (PICs). The DLM implements wavelength level transmission and integrated ODU1 digital switching at the wavelength and sub-wavelength level.

• Pluggable multi-service and multi-rate customer tributary access modules (TAMs) to provide a wide variety of customer interfaces from 155Mb/s to 40Gb/s, supporting SONET/SDH, OTN, Ethernet and SAN services.

• Twin Management Control Modules (MCMs). These are the units that run the Infinera IQ Network Operating System. The MCMs support 1:1 redundent operation for maximum system availability.

• The DTN supports multi-chassis configurations across several racks to create a multi-fiber direction, multi-terabit transport system that's managed as a single network element.

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