notícias da empresa sobre Cisco QSFP-100G-PSM4-S Compatible 100GBASE-PSM4 QSFP28 MPO 1310nm 500m SMF Optical Transceiver Module

The QSFP-100G-PSM4-S compatible optical transceiver module is a high-performance 100GBASE-PSM4 QSFP28 solution designed for modern data center interconnect applications requiring high bandwidth, low latency, and cost-efficient optical transmission. Supporting 1310nm wavelength and MPO/MTP-12 interface, this module delivers stable 100Gbps data transmission over single-mode fiber (SMF) up to 500 meters, making it ideal for spine-leaf architecture and cloud computing environments. Built to meet QSFP28 MSA and IEEE 802.3bm standards, it ensures seamless compatibility with Cisco switches and other major networking platforms. As data centers continue to scale toward higher speeds, this 100G QSFP28 PSM4 transceiver provides a reliable, energy-efficient, and scalable optical interconnect solution for enterprise and hyperscale networks.

The QSFP-100G-PSM4-S compatible transceiver is a QSFP28 form-factor optical module designed for 100 Gigabit Ethernet transmission using the 100GBASE-PSM4 standard. PSM4 stands for Parallel Single Mode 4-lane transmission, which means the module transmits and receives data through four independent optical lanes, each operating at 25Gbps, achieving an aggregated bandwidth of 100Gbps.

Technically, this module operates at a 1310nm wavelength, which is optimized for low attenuation in single-mode fiber (SMF). It utilizes an MPO/MTP-12 optical connector, enabling parallel optical signal transmission through 8 fibers (4 transmit and 4 receive), while additional fibers are reserved for redundancy or future scalability.

From a physical and engineering perspective, the QSFP28 PSM4 module integrates a DFB laser transmitter and PIN photodiode receiver array, ensuring stable optical performance and low bit error rates. The module is compliant with QSFP28 MSA mechanical standards, allowing hot-pluggable installation into standard QSFP28 ports without system downtime.

This architecture eliminates the need for complex wavelength multiplexing (as seen in LR4 modules), instead relying on parallel optics, which simplifies design and reduces cost while maintaining high-speed performance for short-reach applications up to 500 meters over SMF.

Modern data centers face increasing pressure from cloud computing, AI workloads, and high-frequency data exchange. Traditional 10G and 40G networks are no longer sufficient to support the bandwidth demands of distributed computing systems. The QSFP-100G-PSM4-S compatible module addresses these challenges by providing a scalable and cost-effective 100G upgrade path.

One of the primary advantages is cost efficiency. Compared with 100GBASE-LR4 modules, PSM4 uses simpler parallel optics instead of expensive wavelength division multiplexing (WDM), significantly reducing hardware costs while maintaining high throughput.

Another key benefit is low latency performance. With direct parallel transmission over MPO fiber, the module avoids complex signal processing, making it ideal for latency-sensitive applications such as high-performance computing (HPC), financial trading systems, and AI model training clusters.

Thirdly, it offers high-density deployment capability. The QSFP28 form factor allows multiple modules to be installed in high-density switch environments, optimizing rack space usage in hyperscale data centers. Combined with MPO cabling, it enables simplified structured cabling systems.

Additionally, the module ensures strong interoperability and compatibility, supporting Cisco, Juniper, Arista, and other major OEM platforms. This flexibility reduces vendor lock-in and allows network operators to optimize procurement strategies while maintaining performance consistency across infrastructure layers.

In practical deployment scenarios, the QSFP-100G-PSM4-S compatible module is widely used in data center spine-leaf architectures, where high-speed aggregation between switches is required. In a typical configuration, four 25Gbps lanes are transmitted over an MPO-12 single-mode fiber cable, supporting up to 500 meters of reach between leaf and spine switches.

For example, in a cloud data center environment, each rack may contain multiple Top-of-Rack (ToR) switches operating at 25G or 50G. These switches connect to aggregation layers using 100G QSFP28 PSM4 modules, ensuring smooth traffic flow between compute nodes and storage clusters.

From a technical perspective, the module operates with a power consumption of less than 3.5W, making it suitable for large-scale deployments where thermal efficiency is critical. The integrated Digital Diagnostic Monitoring (DDM) function allows network engineers to monitor real-time parameters such as optical power, voltage, temperature, and laser bias current, enabling proactive maintenance and network stability optimization.

In high-performance computing clusters, this module is often used for node-to-node interconnects, where low latency and high bandwidth are essential for distributed computation tasks such as AI training and big data analytics. The use of SMF ensures signal integrity over medium-range distances without requiring costly amplification systems.

In enterprise networks, it is commonly deployed in core-to-aggregation layers, replacing legacy 40G QSFP+ infrastructure. This allows organizations to scale their backbone networks without redesigning the entire fiber infrastructure, significantly reducing upgrade costs.

Furthermore, the MPO-based parallel optical design simplifies cabling management in large-scale deployments. Instead of multiple duplex LC cables, a single MPO trunk cable can support 100G connectivity, reducing cable congestion and improving airflow efficiency in dense rack environments.

Yes, this module is fully compatible with Cisco QSFP28 100G ports. It supports plug-and-play installation and works seamlessly with supported Cisco switches without additional configuration or firmware modification.

The module supports up to 500 meters over single-mode fiber (SMF) using MPO/MTP-12 connectors. It is designed for short-to-medium reach data center interconnect applications.

This transceiver requires OS2 single-mode fiber (SMF) with MPO/MTP-12 APC connectors. Proper polarity and fiber management are important to ensure stable 100G transmission performance.

PSM4 uses 4-lane parallel transmission (4×25G) over MPO fiber, making it cost-effective for up to 500m. LR4 uses wavelength division multiplexing (WDM) over LC duplex fiber and supports up to 10km, but at a higher cost and complexity.

Yes, it supports full DDM/DOM functionality, including real-time monitoring of temperature, voltage, TX/RX optical power, and laser bias current. This helps network engineers monitor link health and troubleshoot issues efficiently.

Yes, it is widely compatible with major brands such as Cisco, Juniper, Arista, and Huawei, depending on port configuration and coding requirements. Compatibility testing is recommended for mixed-brand environments.

The QSFP-100G-PSM4-S compatible transceiver module provides a reliable, cost-efficient, and high-performance solution for 100G data center interconnects. With its MPO-based parallel optics design, low power consumption, and strong compatibility, it is an ideal choice for modern cloud and enterprise networks requiring scalable bandwidth.