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100G QSFP28 Optical Transceivers: Vital Components in Your Data Centers
As data traffic increases, the requirements for high-bandwidth equipment also continue to rise. Many IT departments are looking towards devices like the 100G QSFP28 transceiver to achieve rapid data transmission. This small, high-density and high-speed product often comes as a standard part of 100G equipment. Therefore, these 100G optical transceivers have become the vital components in data centers. In this article, we will talk about the basic types of 100G QSFP28 optical transceivers, including SR4, PSM4, CWDM4 and LR4 versions.
QSFP28 Delivers Greater Benefits to Customers
QSFP28 optical transceiver, designed in 100 Gb/s Ethernet network, which can provide high performance at low power. Firstly, these QSFP28 transceivers are fully compliant with all the latest Fibre Channel and Ethernet standards. And they have very high volumes, because it supports both 100G and 25G links. They allow maximum network capacity and help you quickly migrate to 100G transmission. Also, QSFP28 module is the smallest module available, and has the lowest power consumption among those that are capable of handling 100G traffic. So overall, these compact, high-density and high-speed modules can help to reduce the footprint of servers and lower power consumption while enabling more rapid data transmission.
FS 100G QSFP28 Family
FS has a wide range of 100G modules so that users can extend their choices when selecting a QSFP28 transceiver. These transceiver types include QSFP-100G-SR4-S, QSFP-100G-PSM4-S, QSFP-100G-CWDM4-S and QSFP-100G-LR4-S. And you can choose different brands of these types, covering Cisco, Juniper, Arista, Brocade, Extreme, Dell, Huawei, Ciena and Generic Compatible.
QSFP-100G-SR4-S: The SR4 version supports 100G Ethernet up to 70m on OM3 MMF and up to 100m on OM4 MMF. This 100G QSFP28 SR4 full-duplex optical module offers 4 independent transmit and receive channels, while each offers 25Gb/s operation for an aggregate data rate of 100Gb/s on 100 meters of OM4 multi-mode fiber. An optical fiber ribbon cable with an MTP/MPO connector can be plugged into the QSFP28 module, while electrical connection is achieved through an MSA-compliant 38-pin edge type connector.
QSFP-100G-PSM4-S:The PSM4 version is targeted to service the need of a parallel single mode infrastructure, as most customers currently pursue to the low cost solutions at 500m reach. The PSM4 offers 100G link length up to 500m. This 100G QSFP28 PSM4 defines a four lane 100 Gb/s optical interface to SMF media. Four identical and independent lanes are used for each signal direction. Moreover, the 100G PSM4 transceiver module provides a bi-directional electrical interface with the Host and a bi-directional optical interface with the fiber media. It performs transmit and receive functions that convey data between the Host and the media. All in all, the 100G PSM4 module define requirements for a point-to-point 100 Gb/s link over eight single-mode fibers up to at least 500 m.
QSFP-100G-LR4-S: The LR4 version supports connections up to 10km over single-mode fiber at a wavelength of 1310nm with duplex LC connectors. QSFP-100G-LR4-S supports 100GBase Ethernet rate up to 1km, and the signal is carried over four wavelengths managed within the device. The module converts 4 input channels of 25 Gbps electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100 Gbps optical transmission. Correspondingly, on the receiver side, the module de-multiplexes a 100 Gbps optical input into 4 channels of LAN WDM optical signals and then converts them to 4 output channels of electrical data. Besides, 100G QSFP28E-LR4 incorporates the electro-absorption modulated lasers (EML), EML have slightly different optical properties making them suitable for multi-rate traffic types.
QSFP-100G-CWDM4-S: The QSFP-100G-CWDM4-S optical transceiver is a full duplex optic module that provides a high-speed link at aggregated data rate of 103.13 Gbps over 2 km of single-mode fiber with duplex LC connectors. CWDM4 modules have the following common features: four optical transmitters, four optical receivers with signal detect,wavelength division multiplexer and de-multiplexer and a duplex optical connector for single-mode fiber. The transceiver four lasers with center wavelengths of 1271 nm, 1291 nm, 1311 nm and 1331 nm. The optical signals are then multiplexed into a single-mode fiber through an industry standard LC connector. On the receive side, four lanes of optical data streams are optically de-multiplexed by an integrated optical demultiplexer and transformed to an electrical CAUI-4 compliant output driver. This module features a hot-pluggable electrical interface, low power consumption and 2-wire I2C management interface.
All versions are fully compliant with the MSA standards and digital diagnostics functions are available via an MDIO interface, as specified by the QSFP28 MSA. These units operate off a single 3.3V power supply, and feature maximum power consumption of 3.5W (CWDM4, SR4, PSM4), or 4.5W/4.0W (LR4).
Conclusion
This next-generation QSFP28 provides increased port density and high performance for future data center and networking use. Most importantly, they can save you total expenditure in your date centers. For cost-sensitive data center customers, you can take your network to the next level with FS 100G QSFP28 optical transceivers, which offer easy compatibility with your existing switches and routers.
Tags: 100G QSFP28 Optical Transceivers, SR4, PSM4, CWDM4, LR4
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