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They are the same. The “QSFP” form factor was originally defined for <10G speeds. When it was adopted for 40G, the name became QSFP+ to denote the higher aggregate performance. The same “QSFP” form factor was later adopted for 100G but the electrical interface had to be upgraded to handle 25Gbps/lane. The electrical interface for 100G can handle up to 28Gbps, hence the engineering and industry name is QSFP28. JTOPTICS refers to the 100G form factor as “100G QSFP” to avoid any confusion.
The JTOPTICS QSFP-100G-ZR4 supports link distances up to 80km. A minimum of 12dB attenuation is required to prevent permanent damage to the receiver - refer to the optics datasheet for optical specs. The QSFP-100G-ZR4 is supported on a limited set of platforms – refer to the Transceiver and Cable Guide for supported platforms. The QSFP-100G-LR4 supports links up to 10km over duplex single mode fiber. Enabling FEC with QSFP-100G- LR4 optics on JTOPTICS switches can allow for links beyond 10km with single mode fiber.
Like the QSFP-100G-SWDM4 transceiver described above, the JTOPTICS QSFP-100G-SRBD transceiver also provides 100Gbs bandwidth over standard duplex multi-mode fiber. However, unlike the SWDM4 transceiver (which transmits 4 x 25Gbps wavelengths out of the Tx port, and receives 4 x 25Gbps wavelengths on the Rx port), each optical port on the SRBD contains both a transmitter and receiver, running at full duplex 50Gb/s over a single fiber. The two ports of the QSFP-100G-SRBD provide an aggregate 100Gb/s of bandwidth. The QSFP- 100G-SRBD is supported on all JTOPTICS QSFP 100G ports, and can be used for links up to 70m of OM3 or up to 100m of OM4 multi-mode fiber.
No. The 100G QSFP form factor has just 4 electrical lanes, which is not enough to support 10 lanes of 10G electrical interface. A 100G QSFP can only support a 4x10G or 4x25G electrical interface, which can be used as 4x10GbE or 4x25GbE, but not 10x 10GbE.. As a result the 100G QSFP SR4 cannot interoperate with SR10 based 100GbE transceivers. A complex design with a reverse gearbox (4x25G to 10x10G) can achieve this but results in expensive and power hungry optics.
Breakout mode refers to running a 100G port as 4 separate channels of 25GE. Transceivers or copper cables that enable optical or electrical breakout allow one 100G QSFP100 port to connect to four physically separate 25G links. When breaking out a single 100G port to 4x 25G links, care must be taken to use the same Forward Error Correction (FEC) mode on both ends of the link to ensure link-up. JTOPTICS transceivers and copper cables that support 100G to 4x25G breakout are listed below.
The 100G-DR/FR/LR transceivers can be plugged into any JTOPTICS 100G QSFP port. The electrical connector interface is 4 x 25G NRZ – the same as all existing ‘legacy’ 100G QSFP modules. The optical output is a single wavelength (or “lambda”) 100Gbit/s PAM-4 optical signal. The 100G-DR/FR/LR modules include a gearbox chip to convert the 4 x 25G NRZ electrical signals to a 1 x 100G PAM-4 optical signal. This is in contrast to legacy QSFP100 modules (such as a CWDM4 or LR4 100G module), which have 4 x 25G NRZ optical wavelengths multiplexed onto one fiber.
100G QSFP28 transceivers are high-speed, compact optical transceivers designed for data centers, enterprise networks, and high-performance computing environments. These transceivers support data rates up to 100 Gigabits per second (Gbps) and are commonly used for high-density 100G Ethernet and InfiniBand applications.
JTOPTICS®-100Gb/s-transceiver-module-designed-for-optical-communication-applications-compliant-to-100G-4CWDM-10-MSA.-The-module-converts-4-input-channels-of-25Gb/s-electrical-data-to-4-channels-of-CWDM-optical-signals-and-then-multiplexes-them-into-a-single-channel-for-100Gb/s-optical-transmission.-Reversely-on-the-receiver-side,-the-module-de-multiplexes-a-100Gb/s-optical-input-into-4-channels-of-CWDM-optical-signals-and-then-converts-them-to-4-output-channels-of-electrical-data.-The-high-performance-cooled-CWDM-DFB-transmitters-and-high-sensitivity-PIN-receivers-provide-superior-performance-for-100-Gigabit-Ethernet-applications-up-to-2km.Hot-pluggable-QSFP28-form-factorMax.-link-length-of-2kM-over-Single-mode-Fiber.4-x-26Gb/s-DFB-based-CWDM-Cooling-transmitter.4-channels-PIN-ROSA.Internal-CDR-circuits-(receiver-and-transmitter-channels)Support-CDR-bypassTransmission-data-rate-up-to-26Gbps-per-channel.Duplex-LC-ConnectorComply-with-IEEE-802.3ba-100GBASE-LR4,-IEEE-802.3bm,-SFF-8665-and..
JTOPTICS® 100Gbps transceiver module designed for optical communication applications compliant to 100GBASE-ER4. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of LAN WDM optical signals and then converts them to 4 output channels of electrical data. The high-performance cooled LAN WDM EML transmitters and high sensitivity PIN+SOA receivers provide superior performance for 100Gigabit Ethernet applications up to 40km links and compliant to optical interface with IEEE802.3ba 100GBASE-ER4 requirementsHot-pluggable QSFP28 form factor4 channels full-duplex transceiver module.Max. link length of 10kM over Single mode Fiber.4 X 25/28G LAN-WDM EML Integrated TOSA.4 x PIN+SOA Receiver.Internal CDR circuits (receiver and transmitter channels)Support CDR bypassTran..
JTOPTICS® 100Gb/s transceiver module designed for optical communication applications compliant to 100G 4WDM 10 MSA. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of CWDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de multiplexes a 100Gb/s optical input into 4 channels of CWDM optical signals and then converts them to 4 output channels of electrical data. The high performance cooled CWDM DFB transmitters and high sensitivity PIN receivers provide superior performance for 100 Gigabit Ethernet applications up to 10km.Hot pluggable QSFP28 form factorMax. link length of 10kM over Single mode Fiber.4 x 26Gb/s DFB based CWDM Cooling transmitter.4 channels PIN ROSA.Internal CDR circuits (receiver and transmitter channels)Support CDR bypassTransmission data rate up to 26Gbps per channel.Duplex LC ConnectorComply with IEEE 802.3ba 100GBASE LR4, IEEE 802.3bm, SFF 8665 an..
JTOPTICS® 100GBASE SR4 100m QSFP28 optical transceiver, 100G QSFP28 SR4 (JT 100G QSFP28 MPO SR4) is designed for use in 100 Gigabit Ethernet links up to 100m over Multi Mode Fiber (MMF). It is compliant with the QSFP28 MSA and IEEE 802.3bm 100GBASE SR4. It integrates 4 data lanes in each direction with 4×25.78125Gb/s bandwidth. The electrical interface uses a 38 contact edge type connector. The optical interface uses a 12 fiber MTP/MPO connector. Hot pluggable QSFP28 form factor4 channels full duplex transceiver moduleSupports 103.1Gb/s aggregate bit rate.Max. link length of 70m on OM3 & 100m on OM4 (MMF)4x25Gb/s 850nm VCSEL based transmitter4 channels PIN photo detect.Internal CDR circuits (receiver and transmitter channels)Support CDR bypassData rate up to 25.78125Gbps or 28.05Gbps per channel.Supports MPO/MTP 12 Connector3.5 W maximum power dissipationSingle 3.3V power supplyComply with IEEE 802.3bm 100GBASE SR4 and CAUI 4 standard.RoHS 6 compliant..
This transceiver is a high-performance module for short-range duplex data communication and interconnect applications. It integrates four electrical data lanes in each direction into transmission over a single LC duplex fiber optic cable. Each electrical lane operates at 25.78125 Gbps and conforms to the 100GE XLPPI interface. The transceiver internally multiplexes an XLPPI 4x25G interface into two 50Gb/s electrical channels, transmitting and receiving each optically over one simplex LC fiber using bi-directional optics. This results in an aggregate bandwidth of 100Gbps into a duplex LC cable. Hot-pluggable QSFP28 form factorSupports 100Gb/s aggregate bit ratePower dissipation <4WCommercial case temperature range of 0°C to 70°CSingle 3.3V power supplyMaximum link length of 100m on Multi Mode Fiber (MMF)Aligned with IEEE 802.32 duplex channels transmitters and receiversIntegrated 850nm/910nm VCSEL and PD arrayDuplex LC receptaclesI2C management interface ..
JTOPTICS 100G QSFP28 DAC is the QSFP28 to QSFP28 copper direct 100GBASE-CR4 cable, which is suitable for very short links and offer a cost-effective choice to establish a 100 gigabit link between two 100G QSFP28 ports of switches within racks and across adjacent racks. It is compliant with QSFP28 Multi-Source Agreement (MSA) standard SFF-8665, IEEE 802.3bj and InfiniBand HDR. 100G DAC cables are configured with 4 independent channels of NRZ signals, up to 25.78 Gbps data rate per channel. It is assembled with two QSFP28 electrical connectors and fixed cable lengths. 100G QSFP28 DAC cables provide power-efficient connectivity for short distance interconnections in the high-performance computing (HPC), data centers and storage networks.Hot-pluggable QSFP28 DAC cable assemblies4-channel full-duplex passive copper cableSFF-8665 compliant QSFP28 connectorsCompliant with QSFP28 MSA and IEEE 802.3SFF-8636 compliant I2C management interfaceIEEE 802.3bj 100GBASE-CR4 compliantData rate up to 100..
JTOPTICS 100G QSFP28 to 4x 25G SFP28 PCC (Passive Copper Cable), also known as Direct Attach Copper (DAC) cable or Twinax cable, provides robust connections between 100G Ethernet and 25G Ethernet systems. Each cable consists of four lanes each operating at data rates of up to 25Gb/s. The passive copper cables require no additional power to ensure quality connectivity. The cables are compliant with SFF-8402 SFP28 and SFF-8665 QSFP28 standard specifications and provide connectivity between system units with a QSFP28 port on one side and up to four different SFP28 ports on the other. Hot-pluggable QSFP28 DAC cable assemblies4-channel full-duplex passive copper cableSFF-8665/SFF-8402 compliant QSFP28/SFP28 connectorsCompliant with QSFP28 MSA and IEEE 802.34x 25G NRZ electrical interfaceSFF-8636 compliant I2C management interfaceIEEE 802.3bj 100GBASE-CR4 compliantIEEE 802.3by 25GBASE-CR compliantData rate up to 100Gbps (4x 25Gbps)Excellent signal integrity, low insertion loss and low c..
JTOPTICS® 100G QSFP28 AOC is a 4x25Gb/s active optical cable, which is designed for 100G Ethernet (100GbE) and InfiniBand FDR/EDR applications. They are composed of QSFP28 transceivers in both ends and OM3(OM4) multi-mode fiber cable. It has four channels in each direction with 100Gb/s total bandwidth. Each channel operates up to 25Gb/s. The 100G QSFP28 AOC cables is fully compliant with QSFP28 MSA of IEEE 802.3bm 100GBASE-SR4 and CAUI-4 specifications. With lighter weight and smaller bend radius, the 100G QSFP28 AOC cables provide an ideal alternative solution for the 100G QSFP28 DAC (passive direct attach copper cables) and QSFP28 transceivers in high-performance computing (HPC), data center and storage networks applications.4 channels full-duplex transceiver modules Supports 100Gbps total data rate. 4 channels 850nm VCSEL array 4 channels PIN photo detector array MMF cable with customizable length up to 70m (OM3) 4x 25G NRZ electrical interface4x 25G NRZ opt..
JTOPTICS® 100G QSFP28 breakout AOC (active optical cable) is designed for the interconnection between 100G Ethernet (100GbE) and 4x 25G Ethernet (25GbE). The QSFP28 to 4x SFP28 AOC cable is also known as 100G QSFP28 hybrid optical cable, 100G QSFP28 splitter AOC or 100G QSFP28 Fan-out AOC. The 100G QSFP28 breakout AOC offers four parallel, bi-directional channels each operating at up to 25 Gbps. Using industry-leading COB technology and high-performance optical engine of VCSEL laser and OM3 multi-mode fiber, this AOC breakout cables provide a highly cost-effective and low-power consumption connectivity for the high-performance computing (HPC), data center and storage networks applications. Hot Pluggable QSFP28 and SFP28 MSA Compliant4 channels full-duplex transceiver modules Supports 100Gbps total data rate. 4 channels 850nm VCSEL array 4 channels PIN photo detector array MMF cable with customizable length up to 70m (OM3) Electrical interface compliant to ..
