QSFP+ module supports 1x 40 Gbit/s and QSFP+ DAC/AOC cable supports 4x 10 Gbit/s. QSFP28 module is capable of transmitting data at 100 Gbit/s, and QSFP28 DAC/AOC cable can run at 4x 25 Gbit/s or 2x 50 Gbit/s. Note that, usually, QSFP28 modules can't break out into 10G links.
What is QSFP28 DD?
QSFP-DD is a new module and cage/connector system similar to current QSFP, but with an additional row of contacts providing for an eight lane electrical interface. It is being developed by the QSFP-DD MSA as a key part of the industry's effort to enable high-speed solutions.
What is QSFP used for?
The Quad Small Form-factor Pluggable (QSFP) is a compact, hot-pluggable transceiver used for data communications applications. The form factor and electrical interface are specified by a multi-source agreement (MSA) under the auspices of the Small Form Factor Committee.15 Jan 2018
Is QSFP28 Compatible with SFP+?
SFP28 vs SFP+ Transceiver Compatibility SFP28 (small form-factor pluggable 28) is the enhanced version of SFP+, which is because SFP28 has upgraded data rates while inheriting the same package type with SFP+. Though SFP28 is designed for 25Gb/s data rate transmission, it has backward compatibility with SFP+.6 Nov 2021
Is QSFP56 backwards compatible?
400G QSFP56-DD port is backward compatible with the QSFP transceiver which means as long as the switch supports, QSFP56 can work on the QSFP56-DD port. When using a QSFP56 module in an QSFP56-DD port, this port will be configured for a data rate of 200G, instead of 400G.
Is QSFP28 backwards compatible?
QSFP28 optical transceiver is similar to QSFP+ in the form factor and size, and 25Gb/s is available in per channel of QSFP28 optics. While 10Gb/s is available in the per channel of QSFP+ optics. Therefore, the port of QSFP28 can be backward compatible with QSFP+ optical transceiver.
Is QSFP-DD compatible with QSFP28?
QSFP-DD (also called QSFP56-DD) stands for Quad Small Form Factor Pluggable Double Density, which is fully compliant with IEEE802. Backward compatibility: allowing the QSFP-DD to support existing QSFP modules (such as QSFP+, QSFP28, QSFP56, etc.)
Is QSFP compatible with QSFP+?
QSFP vs QSFP+ QSFP transceivers support the network link over singlemode or multimode fiber patch cable. QSFP modules are commonly available in several different types: 4x1G QSFP, 4x10G QSFP+, 4x28G QSFP28. From this side, QSFP vs QSFP+ vs QSFP28 all share the same small form-factor.17 Apr 2017
What is a QSFP28?
QSFP28 (quad small form-factor pluggable 28) is designed for 100G applications. It offers four channels of high-speed differential signals with data rates ranging from 25 Gbps up to potentially 40 Gbps, and finally, meet 100 Gbps Ethernet (4×25 Gbps) and 100 Gbps 4X InfiniBand Enhanced Data Rate (EDR) requirements.
What is an optical transceiver used for?
The transceiver is an important part of a fiber optics network and is used to convert electrical signals to optical (light) signals and optical signals to electrical signals. It can be plugged into or embedded into another device within a data network that can send and receive a signal.
Is QSFP28 optical?
The 100G QSFP28 LR4 is a 100Gb/s transceiver module designed for optical communication applications compliant to 100GBASE-LR4 of the IEEE P802.
What is SFP used for?
SFP ports and their corresponding SFP modules are used to facilitate seamless, high-speed data communications or telecommunications connections over extended distances in a variety of applications.13 Apr 2020
Is SFP56 backwards compatible?
Our SFP28/56 assemblies share the same mating interface with SFP+ form factors, making them backward compatible with existing SFP+ I/O ports.