• LDM converts signals: 2 x (100 Mbit/s to 2.5 Gbit/s signals) <-> 1 x OTU1
• Implements the dual fed and selective receiving function or single fed and single receiving function on the WDM side according to the application scenario.

FE: Ethernet service at a rate of 125 Mbit/s

GE: Ethernet service at a rate of 1.25 Gbit/s

OTU1: OTN service at a rate of 2.67 Gbit/s

STM-1/OC-3: SDH/SONET service at a rate of 155.52 Mbit/s

STM-4/OC-12: SDH/SONET service at a rate of 622.08 Mbit/s

STM-16/OC-48: SDH/SONET service at a rate of 2.5 Gbit/s

FC100: SAN service at a rate of 1.06 Gbit/s

FC200: SAN service at a rate of 2.12 Gbit/s

FICON: SAN service at a rate of 1.06 Gbit/s

FICON Express: SAN service at a rate of 2.12 Gbit/s

DVB-ASI: Video service at a rate of 270 Mbit/s

ESCON: SAN service at a rate of 200 Mbit/s

FDDI: SAN service at a rate of 125 Mbit/s

• Provides the OTU1 interface on WDM-side.
• Supports the OTN frame format and overhead processing by referring to the ITU-T G.709.
• Supports PM and TCM functions for ODU1.
• Supports SM function for OTU1.

Supports the PRBS function on the client and WDM sides.

The board supports the LPT function only when the client-side service type is FE or GE.

Supports ITU-T G.709-compliant forward error correction (FEC) on the WDM side.

• Monitors BIP8 bytes (Poisson mode or Bursty mode) to help locate line failures.
• Monitors B1 bytes to help locate faults.
• Monitors OTN alarms and performance events.
• Monitors parameters such as the bias current, temperature, and optical power of the laser.

• Supports the remote monitoring (RMON) of Ethernet services.

Supports the ALS function on the client side when client services are non-OTN services.

• Supports client 1+1 protection.
• Supports intra-board 1+1 protection.
• Supports OWSP protection.

Protocols or standards compliance

Protocols or standards for transparent transmission (non-performance monitoring)

IEEE 802.3u

IEEE 802.3z

ITU-T G.707

ITU-T G.782

ITU-T G.783

GR-253-CORE Synchronous Optical Network (SONET) Transport Systems: Common Generic

NCITS FIBRE CHANNEL PHYSICAL INTERFACES (FC-PI)

NCITS FIBRE CHANNEL LINK SERVICES (FC-LS)

NCITS FIBRE CHANNEL FRAMING AND SIGNALING-2 (FC-FS-2)

NCITS FIBRE CHANNEL BACKBONE-3 (FC-BB-3)

NCITS FIBRE CHANNEL SWITCH FABRIC-3 (FC-SW-3)

NCITS FIBRE CHANNEL - PHYSICAL AND SIGNALING INTERFACE (FC-PH)

NCITS FIBRE CHANNEL SINGLE-BYTE COMMAND CODE SETS-2 MAPPING PROTOCOL (FC-SB-2)

SMPTE 292M Bit-Serial Digital Interface for High-Definition Television Systems

ETSI TR 101 891 Professional Interfaces: Guidelines for the implementation and usage of the DVB Asynchronous Serial Interface (ASI)

SMPTE 259M 10-Bit 4:2:2 Component and 4fsc Composite Digital Signals - Serial Digital Interface

NCITS SBCON Single-Byte Command Code Sets CONnection architecture (SBCON)

ANSI X3.139 Information Systems - Fiber Distributed Data Interface (FDDI) - Token Ring Media Access Control (MAC)

ANSI X3.148 Information Systems - Fiber Distributed Data Interface (FDDI) - Token Ring Physical Layer Protocol (PHY)

ANSI X3.166 Information Systems - Fiber Distributed Data Interface (FDDI) Physical Layer Medium Dependent (PDM)

Protocols or standards for service processing (performance monitoring)

ITU-T G.805

ITU-T G.806

ITU-T G.709

ITU-T G.872

ITU-T G.7710

ITU-T G.798

ITU-T G.874

ITU-T M.3100

ITU-T G.874.1

ITU-T G.875

ITU-T G.808.1

ITU-T G.841

ITU-T G.8201

ITU-T G.694.1

ITU-T G.694.2