1. Product Description
The module is intended to be used on the host board of system integrators to support transmission over DWDM links in Metro networks. As shown in Figure 1-1, it comprises high-data lanes, a single reference clock from hosts, a single 3.3 V power supply, an MDIO interface, and dedicated alarm and control pins. The LACF2-DCO-400G module uses a 104-pin CFP2 MSA connector for all electrical interfaces with the host board, whereas the optical interfaces on the line side are provided through the optical receptacles on the CFP2. The module can be portioned into three functional parts: Tx path, Rx path and control & power block. All control interface pins are routed to the MCU and oDSP. The MCU is also used for fast control inside the module such as modulator bias adjustment, firmware management, overall control coordination and status reporting.
2. Product Features
Transmission reach beyond 640km@400G and 2000km@200G over SMF
Hot-pluggable 104-pin electrical interface
Supports 75 GHz/100 GHz channel spacing
Supports OTN Framer
Supports PM-16QAM (400G)/PM-QPSK (200G) modulation
Compliant with CFP2 MSA Hardware Specification Rev. 1.0
Compliant with CFP MSA Management Interface Specification Version 2.6 (R06a)
LC duplex connector
Single 3.3 V power supply
Typical power consumption: 32 W
Operating case temperature: 0°C to 75°C
3. Typical Applications
MuxPonder Applications
The LACF2-DCO-400G module operating as a MuxPonder, asynchronously (GMP) maps Ethernet or OTU4 signal from a switch/router to a Line DSP frame. Typical applications are shown in Figure 2-1 through Figure 2-3. In the MuxPoner application 1, the host need to transform NRZ and PAM4 signals with a GearBox, and the FEC regeneration or passthrough depends on the client signals. In the other MuxPonder applications, a GearBox is optional, and the client signals can connect to the 104-pin connector directly.
NOTE:
1. Maximum power consumption value depends on the application condition: the case temperature (0°C-75°C) and voltage range (3.2 V-3.4 V).
2. Typical power consumption value depends on the application condition: the case temperature (0°C-65°C), voltage range (3.2 V-3.4 V), reserved 1.5 dB OSNR margin and average value of multiple modules.
7. Electrical Characteristics
7.1 Host Electrical Connector & Pin Assignments
7.2 High-Speed Electrical Specifications
The transmitter and receiver comply with the CEI-56G-VSR-PAM4 electrical specification for FOIC1.2, OTL4.2, 100GAUI-2 and 400GAUI-8. The data lines are AC-coupled inside the module.
The transmitter and receiver comply with the CEI-28G-MR-NRZ electrical specification for FOIC1.4, OTL4.4 and 100GAUI-4. The data lines are AC-coupled inside the module.
8. Optical Characteristics
9. Framer Characteristics
9.1 Host Interface Configuration
The module supports host signal types: n x 100G FlexO (n = 2, 4)/n x OTU4 (n = 1, 2, 3, 4)/n x 100GE (n = 1, 2, 3, 4)/400GE. Host electrical interface is compliant with CEI-28G-MR and CEI-56G-VSR. The host rate is dependent on the framing type and the supported host rates are shown in the following table. Clock source is need for synchronization, and module REFCLK input clock = Host baud rate/160.
9.2 Line Framing Format
The line framing format is Link-all proprietary and it is required that both ends of the optical connection use Link- all technologies, in which there is proprietary SD_FEC in conjunction with 400G PM-16QAM/200G PM-QPSK modulation. The actual line rate depends on the configured FEC mode and the host data format.
9.3 Configuration Overview
The table below summarizes the possible combinations of host type and line side (modulation) that can be configured through the MDIO interface. Refer to the LACF2-DCO-400G software interface specification for register details needed to configure the CFP2 for the desired application.
10. Mechanical Specifications
The CFP2 module is designed to be inserted into a host board with a railing system that includes a heat sink. The module is 107.5 mm x 41.5 mm x 12.4 mm in size and is mechanically compliant with the requirements detailed in the CFP2 HW Baseline Design Rev.1L. The optical port connections on the front of CFP2 are shown in the Figure 8-1. The CFP2 module will support LC receptacles for standard single mode fiber. As mention in the OIF-CFP2-DCO-01.0, the position of the optical connector in the Y and Z axes shall be specified by the CFP2-DCO module manufacturer. In addition to the centered duplex LC connector location specified by the CFP MSA, the CFP2-DCO IA also optionally allows the optical port position on the front of the module to be either left or right-justified if needed to enable a certain vendor-specific implementation technology.
Note:
Please check whether the cage matches before using the module because of the side has dissipation hole structure. For example, the cage part CN121C-104-0029(H1) (YAMAICHI) has side openings and a side without sharp protrusions.
11. Register Specification
The LACF2-DCO-400G transceivers conform to the CFP MSA Management Interface Specification, Version 2.6 r06a, March 27, 2017.
12. Regulatory Compliance
13. ESD Design
Normal ESD precautions are required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and otherwise handled in an ESD protected environment utilizing standard grounded benches, floor mats, and wrist straps.
Do not look into fiber end faces without eye protection using an optical meter (such as magnifier and microscope) within 100 mm, unless you ensure that the laser output is disabled. When operating an optical meter, observe the operation requirements. CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
The information provided on these pages contains the product target specifications which are subject to change without notice. Check with Link-all Sales Office for product updates, changes in specifications, sample availability and production release dates.
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