In Data Center, 100G network Interconnect is expanding rapidly in
the market size. The common type of 100G QSFP28 module includes
QSFP28 SR4, QSFP28 LR4, QSFP28 PSM4, QSFP28 CWDM4(FR4/IR4)
and QSFP28 PLR4. QSFP28 SR4 only provides the fiber link up to
100 meters over MTP/MPO MMF, only suit for In Rack or across Rack
application between Server-TOR and LEAF. For in building, across
building or campus, exceeding 100 meters, there must
need other four single mode
transceivers. Within them, QSFP28 LR4 and QSFP28
PLR4 provides up to 10km transmission for hyper scale data center
long distance interconnect (SPINE-CORE, CORE-METRO, CORE-EDGE) when
QSFP28 CWDM4 and QSFP28 PSM4 provides up to 2km transmission as the
low cost solution for small to medium data center intermediate
distance (500 meters to 2km) transmission scenarios for
(LEAF-SPINE, SPINE-CORE).
For most data center intra-interconnect (LEAF-SPINE-CORE), 500m to
2km intermediate connection has the highest popularity,
creating the huge demand on QSFP28 CWDM4 transceivers.
Enterprise favors QSFP28 CWDM4 rather than QSFP28 PSM4 because
CWDM4 mux/demux the 8 optical lanes into bidirectional channel
and uses the 2 cores LC cable system rather than
PSM4 uses 8 parallel optical lanes and 8 cores MTP/MPO cable
system, saving huge costs on the fiber cables when CWDM4
components has the costs advantage on PSM4 solution for
over 500m transmission.
Top-Trans QSFP28 100G Module is designed for 100GBASE and
Infiniband archictecture. This QSFP28 CWDM4 module uses
CWDM DFB transmitter and PIN receiver to create the
100Gigabit connection via the fiber link over up to 2KM in OS2
SMF. This QSFP28 module features the LC duplex connector which
can interoperate with other MSA compliant QSFP28
module by direct connect or MSA SFP28 CWDM (1271, 1291, 1311,
1331nm) module by a CWDM MUX/DEMUX Unit. This QSFP28 module is
fully MSA compliant and features the online DOM/DDM to monitor the
operation status. This QSFP28 module can be programmed with
the compatibility to interoperate with Arista Network QSFP28
ports.
QSFP28 MSA compliant
4 CWDM lanes MUX/DEMUX design
Supports 103.1Gb/s aggregate bit rate
100G CWDM4 MSA Technical Spec Rev1.1
Up to 2km transmission on single mode fiber (SMF) with FEC
Can I use your QSFP28 module with Arista original
QSFP-100G-CWDM4 optics?
Yes, It can interoperate with
Arista optics
What's your optic warranty terms?
1 year free replace, 3 years
free repairment for non-human made hardware defects
What if I find your optics are not satifiying with our fiber link,
occurs critical signal losses?
Our optics is produced using fresh new components through the
strict QC control over parameter and performance test
through error detector and eye diagram. The qualification
ratio is over 99.9%. If any quality defects happen within the warranty, we will arrange
the replace/repair service immediately