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100G QSFP28 BIDI ZR4 Side B Transceiver - 80km Single-Fiber MSA Module
Posted on 2025-07-10

100G QSFP28 BIDI  ZR4 "Side B" optical transceiver enables cost-effective 80km single-fiber bidirectional transmission. Its key features include: ‌wavelength inversion‌ (1290nm Tx / 1310nm Rx) for ‌mirrored pairing with Side A modules‌, strict ‌ZR4 compliance‌ ensuring 80km reach with ‌MSA-standard FEC‌, ‌mandatory pairing‌ with a "Side A" module for operation, ‌power efficiency‌ < 6W typical consumption, ‌QSFP28 hot-pluggability‌, and ‌real-time DDM/DCM monitoring‌ for link diagnostics and health.


Product Features:

100G-QSFP28-BIDI-ZR4-80km-A●Compliant with QSFP28 Standard: 

●SFF-8661 Rev 2.5, SFF-8636 Rev 2.10a

●High speed I/O electrical interface (CAUI-4) compliant with IEEE 802.3bm-2015

●100GBASE-ZR4 103.125G 80km point-to-point Ethernet links

●Rx sensitivity of -28dBm 5E-5 with enabled KR4 FEC in host for up to 80km SMF

●Single 3.3V Supply Voltage

●Power Dissipation 4.5W at 55ºC ,6.5W at 70ºC Case Operating Temperature

●0 ºC is environment temp; 70 ºC is Case Operating Temperature

●LAN WDM EML cooled laser and SOA+PIN cooled Receiver

●Universal QSFP28 MSA package with Simplex LC connector

●Two Wire Serial Interface with Digital Diagnostic Monitoring

●Complies with EU Directive 2011/65/EU (RoHS compliant)

●LPMode, ModPrsL, ModSeIL and ResetL are supported

●Telecom networking

●Class 1 Laser


Applications

●‌Data Center Interconnect (DCI)‌:

Enables 80km high-bandwidth connections between data centers via single-fiber bidirectional transmission.

Metropolitan Area Network (MAN) Backbone‌:

Supports 100G high-speed interconnection between urban core nodes with MSA-standard FEC.

‌5G Aggregation Layer Backhaul‌:

Connects 5G base stations to core networks with low latency and high reliability.

‌Enterprise Campus Interconnection‌:

Facilitates cross-campus data transmission while maintaining compatibility with existing network interfaces.

‌Fiber-Optimized Scenarios‌

Reduces deployment costs in fiber-scarce environments through BiDi technology, ideal for legacy network upgrades


Data Sheet
100G QSFP28 BIDI ZR4 Side B Transceiver - 80km Single-Fiber MSA Module.pdf


If you are interested in the 100G QSFP28 BIDI ZR4 Side B Transceiver - 80km Single-Fiber MSA Module,please contact us sales@c-light.com

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