Brief Introduction
The Vchung 400GBASE-LR4 is a 400Gb/s Quad Small Form Factor Pluggable double density (QSFP DD) optical module designed for 10km optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals, and multiplexes them into a single channel for 400Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals, and converts them to 8 channels of 50Gb/s (PAM4) electrical output data.
Features
- Supports 425Gb/s bit rate
- Hot Pluggable QSFP-DD form factor
- Duplex LC Connector
- Up to 10km transmission on single mode fiber (SMF) with FEC
- Compliant to QSFP-DD Rev 4.0
- 4 CWDM lanes MUX/DEMUX design
- SFF-8679: General Electrical
- 8×53.125Gb/s electrical interface(400GAUI-8)
- Data Rate 106.25Gbps (PAM4) per channel.
- IEEE 802.3cd: Physical Layer Specifications and Management Parameters
- Maximum power consumption 12W
- All-metal housing for superior EMI performance
- Single +3.3V power supply Case
- operating temperature: 0°C to +70°C
Applications
- Data Center Interconnect
- 400G Ethernet
- Infiniband interconnects
- Enterprise networking
Specifications
| Part No. | VC-QSFPDD-400G-LR4 | Form Factor | QSFP-DD |
| Distance | 10km | Wavelength | 1271nm,1291nm,1311nm,1331nm |
| Operation Temperature | 0 to 70°C (32 to 158°F) | Connector | DUPLEX LC UPC |
| Voltage | 3.3V | Cable Type | SMF |
| DDM | Yes | Transmitter Type | CWDM EML |
| Receiver Type | PIN | TX Power | -2.8~+4.0dBm |
| Receiver Sensitivity | < -7.7dBm | Powerbudget | 6.3 dB |
| Maximum Power | < 10W | Data Rate | 400G/ps |
| Inbuilt FEC | NO | Modulation Format | 8x 50G PAM4 |
| Packaging Technology | COB | DSP | TX and RX |
| Extinction Ratio | 3.5dB | Protocols | IEEE 802.3cu, QSFP-DD MSA, CMIS 4.1 |
 | Optical 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. |  |
| Compatibility 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. |  |
 | Industrial 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. |
 | Full 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. |  |
