LR4 QSFP-DD transceiver modules are designed for use in 400 Gigabit Ethernet links on up to 10km of single mode fiber. They are compliant with the QSFP-DD MSA, QSFP28 MSA, 400G-LR4-10 Technical Specification Rev1.0 Sept 15, 2020 and portions of P802.3bs. Digital diagnostic functions are available via the I2C interface, as specified by the QSFP28 MSA and Finisar Application Note AN-21xx. The optical transceiver is RoHS compliant as described in Application Note AN-2038.

Features
¡ñ Hot-pluggable QSFP-DD type 2 form factor
¡ñ Supports 425Gb/s aggregate bit rate
¡ñ Power dissipation < 12W
¡ñ RoHS-6 compliant
¡ñ Case temperature range of 0°C to +70°C
¡ñ Single 3.3V power supply
¡ñ Maximum link length of 10km on Single Mode Fiber (SMF)
¡ñ Aligned with 100G Lambda MSA Group 400G-LR4-10 technical spec
¡ñ 4x100Gb/s PAM4 serial lanes
¡ñ 8x50G PAM4 retimed 400GAUI-8 electrical interface
¡ñ LC duplex receptacle
¡ñ I2C management interface

Applications
¡ñ 400G-LR4-10 applications with FEC

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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.

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