Description
The F-tone Networks 100G BIDI SR QSFP28 optical transceiver is designed for using in 100-Gigabit Ethernet links up to 70m using OM3 and 100m using OM4. It is compliant with the QSFP28 MSA, IEEE802.3cm-2020 and CAUI-4(no FEC)1. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.
The module incorporates 2 channels 850nm/910nm VCSEL and PIN photo detector, transmitting and receiving each optically over one simplex LC fiber using bi-directional optics. This results in an aggregate bandwidth of 100Gbps into a duplex LC cable. This module can convert 4 channels of 25Gbps (NRZ) electrical input data to 2 channels of 50Gbps (PAM4) optical signal, and also can convert 2 channels of 50Gbps (PAM4) optical signal to 4 channels of 25Gbps (NRZ) electrical output data. The electrical interface uses a 38-contact edge type connector. This transceiver is a high performance module for short-range duplex data communication and interconnects applications.

Features
¡ñ QSFP28 module form factor
¡ñ Support QSFP28 SFF-8436/8636
¡ñ 2x53.125Gbps(26.5625GBd) PAM4 parallel optics architecture
¡ñ 4x25.78125Gbps NRZ retimed electrical I/O
¡ñ Bandwidth density of 100Gbps bi-directional
¡ñ 2 channels 850nm/910nm VCSEL and PIN photo detector
¡ñ Internal 4:2 Gearbox with KP4 FEC circuits on both receiver and transmitter channels
¡ñ Duplex LC connector
¡ñ Maximum link length of 100m OM4,70m OM3
¡ñ Built-in digital diagnostic functions
¡ñ Single 3.3V power supply
¡ñ Low power consumption < 4W
¡ñ RoHS compliant (lead free)
¡ñ Case operating temperature
      Commercial: 0 ~ +70¡æ
      Industrial: -40 ~ +85¡æ

Applications
¡ñ 100G SR BD applications
¡ñ High-speed interconnects within and between switches, routers and transport equipment
¡ñ Server-server clusters, super-computing interconnections
¡ñ Proprietary backplanes
¡ñ Interconnects rack-to-rack, shelf-to-shelf, board-to-board, board-to-optical backplane

Mechanical Dimensions

Ordering Information

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Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.