Operating at 1550nm wavelength over 120km single-mode fiber, this 10G Base ZR+ module provides industry-leading distance performance. Supporting multi-rate transmission from 1. 32 Gbps, ideal for carrier backbone and ultra-long-haul applications requiring extreme reach. The 120km SFP optical module has emerged as a cornerstone technology for these requirements, enabling high-performance connectivity across significant geographic spans without the need for costly intermediate amplification or repeaters. Whether supporting metropolitan area networks (MANs) or remote. With the rapid growth of 5G, edge computing, and cross-region data center interconnection (DCI), network designers are looking for ways to achieve stable 120km links without adding expensive optical amplifiers or relay stations. This article takes a deep look at the technical foundation of the SFP+. Our 10G Base ZR+ 120km Compatible SFP+ transceiver delivers maximum reach with exceptional 28 dB link budget and 2400 ps/nm dispersion tolerance. The transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control. You're here to find out which 100G DWDM2 QSFP28 80 or 100G DWDM QSFP28 120 module fits best for your exact needs. Both of the modules are PAM4, which is an evolution from the two-state (NRZ). The QSFP-DD ZR module supports amplified DWDM DCI transmission reach of 80km to 120km over SSMF, compliant with OIF-400ZR standard. The module also supports other fiber types, such as hollow-core fibers. Digital diagnostics functions are available via a TWI interface as CMIS specified.
