Generic Compatible 200G FR4 QSFP56 2km DOM Duplex LC SMF Optical Transceiver Module

QSFP56-200(4×50)-CW4-2(FR4)-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 QSFP56 200G (4x50G) CWDM4 2km FR4 LC DX Transceiver is a high-performance, hot-pluggable module designed for optical data transmission at 50Gbps per channel using PAM4 modulation. It supports data links over single-mode fiber at distances of up to 2km and is housed in a compact QSFP56 package. The transceiver integrates advanced components, including a high-performance laser diode (LD), photodetector (PIN), and digital signal processor (DSP), ensuring reliable and efficient operation for demanding data communication applications.

SPECIFICATIONS
Product ModelQSFP56-200(4x50)-CW4-2(FR4)-LCDManufacturer brandFC-LINK
Package TypeQSFP56Optical connectorLC DX
Max Data Rate200GbpsChannel Data Rate26.5625Gbps
Effective transmission distance2km
Wavelength1310nmOperating voltage3.3V
Fiber TypeSMFCore Size9/125
Transmitter TypeCWDM LD&PDReceiver TypePIN
TX Power-4.2~4.7dBmReceiver Sensitivity-6dBm
Digital Optical Monitoring(DOM)YESReceiver Overload4.7dBm
Power Consumption<6.5WProtocols200G BASE-FR4 Ethernet
Switch & Router Connections
Data Centers
Other 200G interconnect Requirements
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.


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Compatible Brands

Customization Options

Vendor Coding
Private Label
Custom Part Number
Packaging Design
Temperature Grade Selection
Absolute Maximum Ratings
ParameterSymbolMin.Max.Unit
Power supply voltageVCC-0.53.6V
Storage temperatureTC-4085
Relative humidityRH585%
These values represent the damage threshold of the module.Stress in excess of any of the individual absolute maximum ratingscan cause immediate catastrophic damage to the module even if all other parameters are within recommended operating conditions.
Recommended Operating Environment
ParameterSymbolMinTypicalMaxUnit
Power supply voltageVCC3.1353.33.465V
Operating case temperatureTca0-70
Recommended operating environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.
Electrical Characteristics
ParameterSymbolMinTypicalMaxUnitNotes
Signaling rate per lane--26.5625-Gbd-
Transmitter
Differential data input voltage△Vin900--mVp-p-
DifferentialInput ImpedanceZin90100110ohm-
Receiver
Differential output voltageVout--900mVp-p-
Differential output impedanceRout90100110ohm-
Optical Characteristics
ParameterSymbolMinTypicalMaxUnitNotes
Transmitter
Center wavelengthCh0λ01264.512711277.5nm-
Ch1λ11284.512911297.5
Ch2λ21304.513111317.5
Ch3λ31324.513311337.5
Side-mode suppression ratioSMSR30--dB-
Average optical powerPo-4.2-4.7dBm-
Tx OMA per laneTxOMA-1.2-4.5dBm-
Extinction ratioER3.5--dBm-
Optical modulation amplitudeOMA-4.5-3dB-
Transmitter and dispersion eye closure for PAM4 per laneTDECQ--3.3dB-
Optical return loss toleranceORL--16.5dB-
Relative intensity noiseRIN---132dB/Hz-
Receiver
Center wavelengthCh0λ01264.512711277.5nm-
Ch1λ11284.512911297.5
Ch2λ21304.513111317.5
Ch3λ31324.513311337.5
Damage thresholdDT5.7--dBm-
Average receive power ,each lane--8.2-4.7dBm-
Receiver reflectanceRfl---26dB-
Difference in receive power between any two lanes---4.1dB-
Receiver sensitivity(OMAouter)----6dBm-
Stressed receiver sensitivity(OMAouter)----3.6dBm-
The following optical characteristics are defined over the recommended operating environment unless otherwise specified.
QSFP56 Transceiver Electrical Pad Layout

Generic Compatible 200G FR4 QSFP56 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 dataInput
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+