Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
  1. Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
  2. Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
  3. Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
  4. Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
  5. Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module

Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module

QSFP28-103-CW4-2-LCD

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  • Broad Multi-Brand Compatibility
  • Flexible Customization Support
  • Tested for Reliable Performance
  • Fast Response & Delivery
  • Professional Technical Support

The FC-LINK QSFP28 100G CWDM4 2km LC DX Transceiver is a compact and highly integrated 4x25G module, designed to deliver exceptional reach, bandwidth, density, and cost efficiency for high port-count 100G systems and client-side 100G interfaces. It adheres to the 100G 4WDM-10 MSA, based on CWDM4 MSA version 1.1, and ensures seamless interoperability with other CWDM4 transceivers over distances of up to 2km.

SPECIFICATIONS
Product ModelQSFP28-103-CW4-2-LCDManufacturer brandFC-LINK
Package TypeQSFP28Optical connectorLC DX
Max Data Rate100GbpsChannel Data Rate25.78125Gbps
Effective transmission distance2km
Wavelength1310nmOperating voltage3.3V
Fiber TypeSMFCore Size9/125
Transmitter TypeDFBReceiver TypeIDP
TX Power-6.5~2.5dBmReceiver Sensitivity-7.3dBm
Digital Optical Monitoring(DOM)YESReceiver Overload2.5dBm
Power Consumption<3.5WProtocolsSFF-8665:
IEEE 802.3bm.
IEEE 802.3ba.
Operating temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Data center optical transceiver application scenario
Server-to-Switch Data Center Links

Used for 10G/25G/100G optical uplinks between servers and top-of-rack switches in high-density data center deployments.

Enterprise network fiber optic application scenario
Building-to-Building Campus Backbone

Suitable for 1G/10G fiber links between office buildings, campus distribution rooms, and backbone aggregation points.

Telecom fiber optic link application scenario
Access-to-Core Enterprise Uplinks

Designed for switch uplinks from access to aggregation or core layers in enterprise and campus network architectures.

Industrial fiber optic network application scenario
Industrial Switching in Harsh Environments

Applied in industrial Ethernet, automation systems, and outdoor cabinets where wider temperature tolerance and stable fiber communication are required.

Network topology background
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Compatible Brands

Customization Options

Vendor Coding
Private Label
Custom Part Number
Packaging Design
Temperature Grade Selection
ParameterSymbolMin.Max.Unit
Power supply voltageVCC-0.53.6V
Operating case temperatureTC-4085℃
Relative humidityRH585%
These values represent the damage threshold of the module.Stress in excessof any of the individual absolute maximum ratings can cause immediate catastrophic damage tothe module even if all other parameters are within recommended operating conditions.
Recommended Operating Environment
ParameterSymbolMinTypicalMaxUnit
Power supply voltageVCC3.153.33.45V
Operating case temperatureTca0-70℃
Electrical Characteristics
ParameterSymbolMinTypicalMaxUnitRef
Transmitter
Input differential impedanceRin-100-Ω1
Single-ended input voltage
tolerance		--0.3-4V-
AC common mode input voltage
tolerance		-15--mV-
Differential input voltage-50--mV-
Differential input voltage swing,
perlane		Vin190-1000mV-
Receiver
Output differential impedanceRout-100-Ω1
Differential output swing,perlaneVout300-900mV2
AC common mode output voltage
tolerance		---7.5mV-
Single-ended output voltage--0.3-4V-
Notes:
[1]AC coupled.
[2]Into 100 ohm differentialter mination.
Transmitter Specifications-Optical
ParameterSymbolMinTypicalMaxUnit-
Center wavelengthCh0λ01264.512711277.5nm-
Ch1λ11284.512911297.5nm-
Ch2λ21304.513111317.5nm-
Ch3λ31324.513311337.5nm-
Bit rate per channelDR25.78125±100pGbps1
Side mode suppression ratioSMSR30--dB-
Average launch power each lane--6.5-2.5dBm7
Optical modulation amplitude(each lane)OMA-42.5dBm-
Transmit OMA per lane @TDP max--2--dBm2
l launch power in OMA minus TDP,each aneOMA-TDP-5--dBm-
Transmission&dispersion penalty, each laneTDP--3dB3
Transmitter reflectance----12dB-
Extinction ratioER3.5--dB-
Transmitter eyemask definition{X1,X2,X3,Y1,Y2,Y3}{0.31,0.4,0.45,0.34,0.38,0.4}
CWDM4 MSA technical specifications rev 1.1
Total average launch powerPo--8.5dBm-
Average launch power of OFF transmitter,each lanePoff---30dBm-
Optical return loss toleranceORL--20dB-
Receiver Specifications-Optical
ParameterSymbolMin.TypicalMax.Unit-
Center wavelengthCh0λ01264.512711277.5nm-
Ch1λ11284.512911297.5nm-
Ch2λ21304.513111317.5nm-
Ch3λ31324.513311337.5nm-
BitRate per channelDR25.78125±100ppmGbps4
Unstressed sensitivity(OMA)OMAin---10dBm5
Receiver overloadPMAX2.5----
Stressed sensitivity(OMA)OMAin,str---7.3dBm6
Optical return lossORL---26dB-
Vertical eye closure penalty,each laneVECP--1.9dB-
Stressed eye J2 jitter,each laneJ2--0.3UI-
Stressed eye J9 jitter,each laneJ9--0.5UI-
Stressed eye J4 jitter,each laneJ4--0.48UI-
SRS eye mask definition{X1,X2,X3,Y1, Y2,Y3}{0.39,0.5,0.5,0.39,0.39,0.4}
CWDM4 MSA Technical Specifications Rev 1.1		-
Damage threshold,eachlane-3.5--dB-
Notes:
[1]Transmitter consists of 4lasersoperating at25.78Gb/s each.
[2]At maximum TDP.
[3]TDP value does not include MPI penalty.
[4]Receiver consists of4 photodetectors operating at 25.78Gb/s each.
[5]Sensitivity is specified at 5x10-5 BER.
[6]Measured with CWDM4 MSA2 conformance test signal at TP3 for 5x10-5BER.
[7]Power value and power accuracy are with allchannels on.
General Specifications
ParameterSymbolMin.TypicalMax.UnitRef.
Bit rate(all wavelengths combined)BR--103.1Gb/s-
BitError ratio @25.78Gb/sBER--5x10-⁵-1
Maximum supported distances
Fiber type------
SMF per G.652LossBdgt--5dB2
Notes:
[1]Tested with a 231-1PRBS.
[2]This 5dB loss budget includes2.5dB optical coding gain from FEC on the host [RS-FEC(528,514)per Clause 91].The maximum informative link lengthis 2km.The option to bypass RS-FEC is not supported.Loss budget may include upto 1dB MPIloss penalty with worse caseTransmitter and worst case connector MPI.
Electrical Pad Layout

Generic Compatible 100G CWDM4 QSFP28 2km DOM Duplex LC SMF Optical Transceiver Module
Pin Definition
PinSymbolName/Description
1GNDGround
2Tx2nTransmitter inverted data input
3Tx2pTransmitter non-inverted data input
4GNDGround
5Tx4nTransmitter inverted data input
6Tx4pTransmitter non-inverted data input
7GNDGround
8ModSelLModule select
9ResetLModule reset
10VCCRx+3.3V power supply receiver
11SCL2-wire serial interface clock
12SDA2-wire serial interface data
13GNDGround
14Rx3pReceiver non-inverted data output
15Rx3nReceiver inverted data output
16GNDGround
17RxlpReceiver non-inverted data output
18Rx1nReceiver inverted data output
19GNDGround
20GNDGround
21Rx2nReceiver inverted data output
22Rx2pReceiver non-inverted data output
23GNDGround
24Rx4nReceiver inverted data output
25Rx4pReceiver non-inverted data output
26GNDGround
27ModPrsLModule present
28IntLInterrupt
29VCCTx+3.3V power supply transmitter
30VCC1+3.3V power supply
31LPModeLow power mode
32GNDGround
33Tx3pTransmitter non-inverted data input
34Tx3nTransmitter inverted data input
35GNDGround
36TxlpTransmitter non-inverted data input
37Tx1nTransmitter inverted data input
38GNDGround
Optical transceiver TX RX performance test
Performance Testing

Each module is tested before shipment to help ensure stable optical and electrical performance.

Optical transceiver compatibility test
Compatibility Verification

Compatibility validation is available for major switch and router platforms.

Optical transceiver aging and reliability test
Reliability Screening

Selected products support aging, temperature cycle, and stability testing for demanding applications.

Automatic labeling and traceability for optical transceivers
Traceable Quality Control

Inspection and production records support more consistent quality control and batch traceability.

光模块产品详情订购信息---QSFP+

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