QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF Transceivers

Quick Details
Part number: VC-QSFP56-200G-FR4 Connector Type: Duplex LC
Form Factor:QSFP56 Wavelength: CWDM4
Distance:2km Fiber Type:SMF

Model Number: #17452 Category:

Brief Introduction

The Vchung  200G QSFP56 FR4 PAM4 CWDM4 lanes MUX/DEMUX Design 2km Optical Transceiver Module (1271nm 1291nm 1311nm 1331nm LC SMF 2km with FEC DDM) 200G InfiniBand HDR QSFP56 FR4 Transceiver Module is designed for 200GBASE Ethernet link up to 2km over single-mode fiber (SMF) using a wavelength of 1271nm to 1331nm with duplex LC connectors. The module supports four electrical interface channels and operates in 50G PAM4 coding mode, resulting in 200G (4x50G) data rates. It is compliant with IEEE 802.3cd, IEEE 802.3bs, QSFP56 MSA, SFF-8665, SFF-8024 and SFF-8679 standards. The built-in digital diagnostic monitoring (DDM) allows access to real-time operating parameters. It is suitable for 200G Ethernet, InfiniBand HDR, data centers, and cloud networks.


  1. 3bs 200GBASE-FR4 compliant
  2. QSFP56 MSA compliant
  3. 4 CWDM lanes MUX/DEMUX design
  4. Supports 212.5Gb/s aggregate bit rate
  5. Up to 2km transmission on single mode fiber (SMF) with FEC
  6. Operating case temperature: 10 to 60°C
  7. 200GAUI-4 electrical interface
  8. Maximum power consumption 6.5W
  9. LC duplex connector
  10. RoHS compliant


  1. Data Center Interconnect
  2. 200G Ethernet
  3. Enterprise networking
Part No. VC-QSFP56-200G-FR4 Form Factor QSFP56
Distance 2km Wavelength 1271nm, 1291nm, 1311nm, 1331nm
Operation Temperature 0 to 70°C (32 to 158°F) Connector Duplex LC
Voltage 3.3V Cable Type SMF
DDM Yes Transmitter Type EML CWDM4
Receiver Type PIN TX Power -4.2~+4.7dBm
Receiver Sensitivity < -8.2dBm Protocols QSFP56 MSA, IEEE 802.3bs
Maximum Power < 6.5W Data Rate 200G/ps
Host Required FEC Modulation Format PAM4

QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF TransceiversOptical transceivers port(LC)

For LC port, there are two types of single-fiber bidirectional optical transceivers (one LC connector) and dual-fiber unidirectional optical transceiver (two LC connectors).
Single fiber bidirectional is used to send and receive signals in one fiber, and dual fiber unidirectional optical transceivers are used to one fiber to send signals and other fiber to receive signals.

Optical transceivers series

Vchung offer comprehensive optical modules, data rate from 155M to 100G,form factor including SFP,SFP+,XFP,SFP28,QSFP+,CFP,CFP2 and QSFP28,support MMF and SMF interface.
Vchung closely follow optical communication market trend, offers comprehensive transceivers solution, including:
1. Data center:100G QSFP28, 40GQSFP+, 10G SFP+, 10G/25G/40G/100G AOC.
2. Transport (OTN,PTN):100G CFP/CFP2/CFP4, 10G SFP+/XFP BIDI/CWDM/DWDM/Tunable, SFP.
3. Wireless(5G fronthaul,middlehaul and backhaul):25G SFP28, 50G QSFP28 PAM4.
QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF Transceivers


The optical transceivers can be adapted to Cisco, Huawei, Huasan, Alcatel-Lucent, Juniper, Brocade, HPE, Extreme, Ericsson and other equipment. It is 100% compatible with all vendors on the market.
Of course, before confirming the purchase, it is best to inform model of the equipment to which the optical transceivers is applied.
QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF Transceivers

QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF TransceiversIndustrial Standards

VCHUNG all optical transceivers meet or exceed industrial standards, such as CE and RoHS as well as the regulations of the FCC. Through continuous monitoring before, during and after the production process.

QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF TransceiversFull MSA Compliance

High availability optical transceivers meet the Multi Source Agreement (MSA) standard SFF-8431. With MSA Standards various manufacturers determine standardizations of the Transceiver to ensure the interoperability. The optical transceivers interface is defined electrically, mechanically and functionally.

Quality assurance

VCHUNG provides OEM services, VCHUNG supply all optical modules are high quality and reliable optical transceivers. For quality assurance, we provide three years replacement and lifelong maintenance service.
QSFP56-200G-FR4  200G QSFP56 FR4 PAM4 CWDM4 2km LC SMF Transceivers



This drawing is for reference only. If you need more information and need to modify the drawing, please Email us:support@vchung.com

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