100GBASE-ZR4 BiDi QSFP28 80km Transceiver (Side B): BIDI-100G-QSFP28-80B

Our EDGEOPTIC BIDI-100G-QSFP28-80B is a multi-vendor compatible 100GBASE-ZR4 BiDi QSFP28 bidirectional optical module designed for 100 Gigabit Ethernet applications operating over single-mode fiber infrastructure with single-fiber connectivity and ultra-long reach capability. This quad small form-factor pluggable transceiver utilizes 4WDM wavelength division technology to enable full-duplex 100G transmission over a single fiber strand, delivering 103.125 Gbps throughput for demanding metro and regional network deployments.

The BIDI-100G-QSFP28-80B module operates using 4WDM bidirectional technology with four LAN WDM wavelength channels at 1295.56nm, 1300.05nm, 1304.58nm, and 1309.14nm for transmission (Red Side TOSA) and four O-Band wavelength channels at 1273.55nm, 1277.89nm, 1282.26nm, and 1286.66nm for reception (Blue Side ROSA). Our 100GBASE-ZR4 BiDi QSFP28 transceiver utilizes EML (Electro-absorption Modulated Laser) array for transmission and PIN photodiode array for receiving, employing NRZ (Non-Return to Zero) modulation for signal encoding.

Transceiver ensures a 30 dB guaranteed optical link budget with FEC enabled, which determines the maximum transmission distance. Over standard single-mode fiber, the transceiver can reach distances up to 80 kilometers. However, distance is just an indicative parameter calculated for comfort of identification – eventually we calculate distance taking into account minimal optical budget and average attenuation of optical cabling in industry. The single-fiber 4WDM-80 architecture provides exceptional infrastructure savings for long-haul metro deployments.

BIDI-100G-QSFP28-80B compatible 100GBASE-ZR4 BiDi module is a hot-pluggable QSFP28 with single LC/UPC connector as the optical interface. The electrical interface conforms to IEEE 802.3cu, CAUI-4, QSFP28 MSA, and SFF-8679 specifications, ensuring compatibility with standard QSFP28 host systems supporting multiple vendor equipment platforms. Our 100GBASE-ZR4 BiDi QSFP28 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment.

The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels, module temperature, bias current, and supply voltage. Additionally, the module supports Host FEC (Forward Error Correction) function which is essential for achieving full 80km reach capability by detecting and correcting bit errors across the extended transmission path. The module operates within a 0 to 70°C temperature range with maximum power consumption of 6.5W.

Standards compliance includes IEEE 802.3cu, CAUI-4, QSFP28 MSA, and SFF-8679 specifications. Our 100GBASE-ZR4 BiDi QSFP28 transceiver is CE/RoHS certified.

Important: BiDi transceivers must be deployed in matched pairs with complementary wavelength configurations. This Side B module (Tx LAN WDM/Rx O-Band) must connect to a Side A module (BIDI-100G-QSFP28-80A) with Tx O-Band/Rx LAN WDM configuration. Proper pairing ensures correct bidirectional communication over the single fiber strand.

Typical applications include metro network backbone connections, regional carrier interconnects, and long-haul deployments where fiber conservation and 80km distance capability are both required.

Because our focus is providing top quality service, we are performing serious quality checks before delivery of our products. As a result, we do optical parameter measurements, connector cleanliness tests and QSFP28 transceiver EEPROM memory data validation tests.