Fibertop - Global Optical Module Manufacturer -HPC,Data Center

OSFP 1.6T 2xFR4 2 x CWDM4 2km Transceiver 1

OSFP 1.6T 2xFR4 2 x CWDM4 2km Transceiver 2

OSFP 1.6T 2xFR4 2 x CWDM4 2km Transceiver 3

OSFP 1.6T 2xFR4 2 x CWDM4 2km Transceiver

SKU: OFP-SM31EG-DR8CD

Product Highlights

OSFP form factor hot pluggable

CMIS compliance

2 sets of 4 CWDM lanes MUX/DEMEX design

Dual duplex LC connector, UPC

RHS, flat top

Up to 3km maximum reach via single mode fiber

28 Watts max

Case temperature range of 0°C to 70°C

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OSFP 1.6T 2xFR4 2 x CWDM4 2km Transceiver

The OSFP 1.6T 2xFR4 is a high-performance 1600Gb/s OSFP-RHS (flat top, no fin) optical module designed for 3km single-mode fiber transmission scenarios. Compliant with the Common Management Interface Specification (CMIS), this hot-pluggable transceiver adopts a 2-set × 4-channel CWDM MUX/DEMUX architecture: it converts 8 channels of 200Gb/s PAM4 electrical input signals into two independent 850Gbps optical links for transmission, and reversely de-multiplexes dual incoming optical signals back to 8 channels of 200G electrical data on the receiver side.

Technical Specification

Vendor Name	FIBERTOP	FIBERTOP Part Number(s)	OFP-SM31EG-DR8CD
Transceiver Type	2 x FR4	Reach	2km
Wavelength	CWDM4	Form Type	OSFP
Speed Description	1.6T	Media	SMF
Connector	Duplex LC	Extinction Ratio	> 3.5 dB
TX Power	-2.2 ~ 4.9 dBm	Receiver Sensitivity	< Max (-3.7, -4.6+TECQ) dBm
Applications	AI server Data center and cloud networks 1600G Ethernet and InfiniBand XDR Support applications: 1x1600G,2x800G,4x400G, 8x200G	Environment	Operating:0°C to 75°C Storage: -40°C to 85°C

Frequently Asked Questions

What are the core application scenarios of the OFP-CW311T-FR8CD?

This 1.6T OSFP optical module is purpose-built for high-bandwidth, low-latency AI and HPC scenarios. It is primarily used for GPU-to-GPU / GPU-to-switch interconnects in AI training clusters, 1600G Ethernet and InfiniBand XDR fabrics, high-performance computing infrastructure, and high-density spine-leaf backbones in cloud data centers.

What port breakout modes does this transceiver support?

It supports flexible port configurations to adapt to tiered AI network architectures: 1×1600G, 2×800G, 4×400G, and 8×200G.

What does "2xFR4" mean?

2xFR4 indicates that the module contains 2 independent sets of 4-channel CWDM MUX/DEMUX: Each set consists of 4 CWDM wavelengths: 1271 / 1291 / 1311 / 1331 nm (ITU-T G.694.2 grid) Each set of 4 channels × 200Gb/s PAM4 = 800Gb/s The 2 sets are multiplexed to form 2 independent 800G optical links, totaling 1.6T It is externally connected using dual duplex LC dual-connector (Dual Duplex LC, UPC)

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