Brief Introduction to QSFP28 PSM4 Optical Transceiver
Updated at Dec 25th 20241 min read
With the growing demand for higher data rates in modern optical interconnects, the 100G optical transceiver market is experiencing significant growth, particularly in data centers. QSFP28 remains the dominant form factor for 100G Ethernet in the data center offering outstanding advantages such as high density and low power consumption. We described the QSFP28 100G SR4 and QSFP28 100G LR4 optical transceivers specifically. Today, we are going to make a brief introduction to the QSFP28 100G PSM4 optical transceivers through the perspectives of definition, working principle, specifications, applications, and FAQs to help you better understand their key benefits and use cases.
QSFP28 PSM4 Introduction
What Is QSFP28 PSM4?
The 100G QSFP28 PSM4 is a high-speed, hot-pluggable, low-power-dissipation optical transceiver with a built-in digital diagnostics function. Defined by the 100G PSM4 MSA standard, the QSFP28 PSM4 takes a different transmission approach. Unlike the QSFP28 SR4 module, the PSM4 optics transmit data over a single-mode fiber using a 1310nm wavelength, supporting link lengths up to 500 meters with PSM4 100G cables using MTP/MPO connectors. The 100GBASE PSM4 module offers four independent transmit and receive channels, each operating at 25Gbps, aggregating a total data rate of 100Gbps.
How Does QSFP28 PSM4 Work?
The QSFP28 100G PSM4 converts parallel electrical input signals into parallel optical signals by a laser array and then transmits them in parallel on the MTP/MPO single-mode ribbon fiber. Upon reaching the receiving termination, the PIN array converts the parallel optical signals into parallel electrical signals. The QSFP28 PSM4 module works in much the same way as the QSFP28 SR4 optical transceiver. However, the key difference lies in the type of fiber: the PSM4 operates on single-mode fiber, while the SR4 operates on OM3/OM4 multimode fiber.
QSFP 100G PSM4 Module Working Principle
FS QSFP28 PSM4 Specification and Benefits
All FS QSFP28 100G PSM4 optical transceivers are manufactured to satisfy the industry standard and have been recognized by numerous customers. They are proven to be compatible with over 200 vendors, such as Cisco, Juniper, Arista, Brocade, Dell, and so on.
FS QSFP28 PSM4 Specification
The QSFP-100G-PSM4 Optical Transceiver Module is designed for use with PSM4 cables in 100GBASE Ethernet networks, supporting transmission up to 500 meters over single-mode fiber at 1310nm. Fully compliant with IEEE 802.3bm 100GBASE-PSM4 standards, it supports real-time diagnostics via the I2C interface. PSM4 100G cables with MTP/MPO-12 connectors are used for easy installation and hot-swapping, ensuring reliable, scalable network solutions. This transceiver is ideal for applications such as data centers and high-performance networks.
Form Factor | QSFP28 |
Wavelength | 1310nm |
Connector | MTP/MPO-12 |
Media | SMF |
TX Power | -9.4~2dBm |
RX Power | -12.66~2dBm |
Protocols | QSFP28 MSA Compliant |
Max Data Rate | 103.125Gbps (4x 25.78Gbps) |
Max Cable Distance | 500m |
Transmitter Type | 4x DFB |
Receiver Type | PIN |
DDM/DOM | Supported |
Commercial Temperature Range | 0° to 70° (32 to 158°F) |
CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
QSFP-100G-PSM4 Optical Transceiver Module
FS QSFP28 PSM4 Benefits
FS's QSFP28 100G PSM4 module, with its exceptional performance, low power consumption, and seamless compatibility, offers a reliable and scalable network solution for high-speed data transmission.
Real-Device Testing, Perfect Quality
FS 100GBASE PSM4 optical modules undergo comprehensive real-device testing in our professional lab to ensure perfect compatibility with devices from brands like Cisco, Arista, and Juniper. This rigorous testing process guarantees not only stable performance but also original quality, ensuring the modules meet the highest industry standards for reliability and seamless integration into diverse network environments.
Comprehensive Testing Increases Reliability
BOX Airtight Packaging for Enhanced Reliability
Equipped with a Semtech chip and BOX airtight packaging, the QSFP 100G PSM4 transceiver ensures high speed, low power consumption, and long-term reliability by protecting components from environmental factors, maintaining stable performance even in challenging conditions.
Leading Performance and Quality for 100G
Flexible Network Adaptation and Cost Optimization
With FS BOX, FS 100G PSM4 optical modules can be reprogrammed in real time to work with different brands of equipment, ensuring seamless connectivity. This technology not only improves the compatibility and flexibility of the transceivers but also helps optimize inventory management, reducing stock costs and providing more efficient network solutions.
Enable Seamless Connectivity for Your Network
Flexible Connectivity and Wide Application
The FS 100GBASE PSM4 transceiver supports 4x 25G-NRZ breakout, 100G Ethernet, and 100G EDR InfiniBand for high-performance data center connectivity. With MTP/MPO-8 and MTP/MPO-12 (8 fibers) connectors, it ensures easy integration, efficient deployment, and scalable network solutions.
100G Connectivity for Data Center
FS QSFP28 PSM4 Implementation and Applications
FS QSFP28 PSM4 Application Scenarios
Data Center Interconnect (DCI)
The QSFP28 PSM4 is widely used for high-speed interconnection between data centers. It supports transmission distances of up to 500 meters over single-mode fiber, meeting the high-bandwidth demands of large-scale data center interconnections and ensuring fast, stable data transfer.
High Bandwidth Network Architectures
The module provides ultra-high bandwidth, making it ideal for large-scale storage networks and cloud computing platforms that require efficient data transmission. It supports the rapid transfer of large volumes of data, enhancing overall network performance.
Network Infrastructure Upgrades
The 100G PSM4 is an ideal solution for upgrading network infrastructures from lower-speed connections like 40G to 100G. It simplifies fiber deployment and reduces costs, enabling enterprises to enhance their network capabilities and meet future bandwidth demands effectively.
FS offers not only the 100g PSM4 but also a wide range of high-performance 100G optical modules. With perfect compatibility, low power consumption, and rigorous testing, FS provides reliable and cost-effective solutions for diverse network needs.
FS QSFP28 PSM4 Cabling and Connectivity
The QSFP 100G PSM4 is the ideal choice for a low-cost solution capable of transmitting up to 500m. It supports both 100G to 100G direct connections and enables seamless migration from 25G to 100G over short distances.
100G to 100G Direct Connection
To establish a direct 100G connection, simply plug two QSFP 100G PSM4 optical transceivers into the corresponding ports on the 100G switches and connect them using single-mode MTP cables.
QSFP 100G PSM4 Module 100G to 100G Direct Connection
25G to 100G Migration
How to migrate your network from 25G to 100G? The method to get the 25G to 100G migration is a very simple option. FS offers a gradual migration with the support of the 100G QSFP28 PSM4 modules and four 25G SFP28 LR transceivers, which are connected by the MTP to LC OS2 single-mode fiber cables.
QSFP 100G PSM4 25G to 100G Migration
QSFP28 PSM4 FAQs
Q1: What is the 100G PSM4 standard, and do FS QSFP 100G PSM4 modules comply with it?
A: The 100G PSM4 standard is a multi-source agreement (MSA) designed to provide a cost-effective solution for delivering four 25Gbps wavelengths over single-mode fiber. It is tailored for network applications with transmission distances up to 500m and supports the IEEE 100G Ethernet specification. All FS QSFP28 PSM4 modules are fully compliant with the QSFP28 MSA and the IEEE 802.3bm 100GBASE PSM4 standard.
Q2: Can QSFP 100G PSM4 optics be used to deliver 4x25G over single-mode fiber with a breakout cable to connect to 4x25GBASE LR SFP28 modules?
A: Yes, the QSFP28 PSM4 optics are compatible with delivering 4x25G over single-mode fiber using a breakout cable, allowing you to connect to 4x25GBASE LR SFP28 modules.
Q3: What does it mean when the QSFP 100G PSM4 vendor name is listed under "compatible"? Do you check the compatibility of QSFP28 PSM4 transceivers?
A: The vendor name listed under "compatible" indicates that the module is fully compatible with various brands. FS ensures the compatibility of each QSFP28 PSM4 module by performing rigorous testing. FS's Test Assured Program verifies compatibility through real machine detection, ensuring your modules perform as expected.
Q4: Is it necessary to clean the QSFP28 PSM4 module’s optical connector?
A: Yes, it is highly recommended to implement cleaning procedures for all fiber optic connectors in your data center. Regular cleaning helps reduce link failures and prevents costly replacements of critical network equipment.
Q5: Will using compatible QSFP 100G PSM4 optics affect my manufacturer’s warranty?
A: No, using compatible optics will not void your manufacturer's warranty. Network equipment manufacturers typically do not require you to use only their branded optics. If a fault or defect occurs, and it is not due to the use of third-party optics, your warranty or support program will remain valid.