The growth of network bandwidth demand promotes the development of data transmission rate. Now 40G speed obviously can not meet the needs of data transmission, so 100G was born under this background. In the 100G short distance transmission scheme (500m-2km), the 100G QSFP28 PSM4 optical module is a more cost-effective solution for 100G data center. Next, ETU-LINK will introduce what is the 100G QSFP28 PSM4 optical module.

What is the 100G PSM4 standard?

Before introducing the 100G QSFP28 PSM4 optical module, let's first understand what is the 100G PSM4 standard. The 100G PSM4 standard is a multi-source protocol (MSA). The purpose of the standard is to provide a low-cost solution to transmit four 25Gbps wavelengths through single-mode optical fiber in addition to IEEE 100 Ethernet specification. It is specially designed for the network application with transmission distance of 500m and 2km.

100G QSFP28 PSM4 optical module introduction

The 100G QSFP28 PSM4 optical module conforms to the 100G PSM4 standard and adopts the mode of single-mode fiber parallel transmission. Each 100G model uses 8-core single-mode optical fibers to form 4 independent channels, and each channel transmits 25g data. This optical module uses 12 core MPO / MTP interface, in which the middle 4-core optical fiber of MPO / MTP interface is not enabled. The 100G QSFP28 PSM4 optical module is usually used with OS2 single-mode fiber, and the transmission distance can be up to 2km. At present, there are two types of 100G QSFP28 PSM4 optical modules commonly used in the market, namely 500m and 2km. Then, yitianguang communication will introduce the characteristics and applications of 100G QSFP28 PSM4 optical module.

100G QSFP28 PSM4 optical module features

The 100G QSFP28 PSM4 optical module adopts the hot pluggable QSFP28 package, which is a 4-channel full duplex transceiver module. It meets the QSFP28 MSA and 100G PSM4 MSA standards, and is compatible with InfiniBand DDR/EDR standards. The maximum speed is 103.125gbps, the maximum power consumption is less than 3.5W, and the operating temperature range is 0 °C ~ 70 °C.

100G QSFP28 PSM4 optical module and patch cord collocation

The 100G QSFP28 PSM4 optical module provided by yitianguang communication is usually used with MPO single-mode OS2 optical fiber jumper, and the maximum transmission distance can reach 500m or 2KM.

100G QSFP28 PSM4 optical module is usually used for 100G data center equipment interconnection. In practical application, although the price of 100G QSFP28 PSM4 optical module is cheaper than other 100G optical modules, the 100G QSFP28 PSM4 optical module needs to be used with 8-core/12 core parallel single-mode fiber, so the cost performance ratio is not high in a wide range of deployment scenarios.