Cisco Series
Cisco DP04QSDD-HE0
- 产品描述：Cisco DP04QSDD-HE0 _QSFP-DD High-Power DCO 400G DWDM Tunable Coherent 80km 1550nm DOM Duplex LC/UPC SMF Optical Transceiver_liyuan tech
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Manufacturer: Cisco
Part number: DP04QSDD-HE0
Form Factor: QSFP-DD
Max Data Rate: 400Gbps
Type: ZR+
Wavelength: 1550nm
Transmission Distance: Up to 80km
Channel Band: C-Band
Connector Type: Dual LC
Operating Temperature Range: -40°C to 85°C
Power Consumption: Less than 20W
DCO Type: High TX Power
Error Correction: Soft Decision FEC
Compatibility: Compliant with IEEE 802.3
Transmission Method: Coherent Detection
Organizational Certification: RoHS, CE, FCC
Digital Diagnostics: Supported
Hot-swappable: Yes
I. Product Description:
1. Cisco DP04QSDD-HE0: This is the specific product part number (PID) used to uniquely identify this product.
2. QSFP-DD: Packaging form. This is the form specification for a high-performance optical module. It is an enhanced version of QSFP (quad-channel small form factor),
and "Double Density" means it supports higher density and speed (such as 400G) through 16 electrical channels while maintaining backward compatibility (for example, it can be inserted into QSFP28 ports).
3. 400G: Transmission rate. This indicates that the data transmission rate of this module is up to 400 gigabits per second (gigabits per second).
4. 80KM: Transmission distance. This indicates that when using single-mode fiber (SMF), the maximum transmission distance can reach 80 kilometers.
This is a very long distance, belonging to the long-distance (LR) and ultra-long-distance (ELR) categories.
5. DWDM: Core technology. Dense wavelength division multiplexing. This is one of the core technologies of this module.
Unlike ordinary optical modules that use fixed "gray light" wavelengths (such as 1310nm, 11550nm), it uses specific channel wavelengths (specific frequencies in the C-band) defined by the ITU-T standard.
It is itself a tunable optical module that can adjust its wavelength through software commands to a specific channel in the DWDM spectrum (such as channel 31, 32, ... 60, etc.).
This means that multiple such modules can transmit dozens of different 400G signals through one pair of optical fibers, greatly saving fiber resources.
6. Duplex LC: Optical fiber interface type. It uses the standard LC duplex interface, requiring the connection of two optical fibers (one for transmission Tx and one for reception Rx).
This is different from the SR8 module that uses MPO/MTP interfaces for parallel optical fibers.
7. 1550nm: Central working wavelength range. It refers to the tunable wavelength range in the C-Band (approximately 1530nm - 1565nm), which is the standard wavelength band of DWDM systems.
8. DOM: Digital optical monitoring. The support of this function means that the module is equipped with sensors that can monitor its working status in real time, such as:
output/input optical power, temperature, laser bias current, supply voltage. These data can be read by the host device (such as a switch) for performance monitoring and fault diagnosis.
Summary description: This is a 400Gbps rate optical module launched by Cisco, using QSFP-DD packaging form. It utilizes tunable DWDM technology,
through a pair of standard single-mode fiber LC interfaces, achieving ultra-long-distance (up to 80 kilometers) data transmission. Its wavelength can be software-tuned,
and supports the DOM digital diagnostic function, making it an ideal choice for building large-capacity, long-distance wavelength division multiplexing transmission networks.
II. Usage Scenarios
This high-end optical module is expensive and has very specific application scenarios, mainly concentrated in areas that require ultra-large bandwidth and ultra-long transmission distances:
1. Data Center Interconnection (DCI):
This is the main application scenario. When two or more geographically dispersed data centers (possibly located in different areas of a city or different cities) need high-speed interconnection,
deploying dedicated optical fibers is extremely costly. By deploying such DWDM modules at both ends, a 400G channel can be easily on an existing pair of fibers，
or sharing the fiber with other wavelengths of services， greatly saving fiber resources and construction costs.
2. Metropolitan Area Network and Long-haul Network Core/Aggregation Layer： When telecom operators build 5G bearer networks，
and fixed network backbone networks, the core layer and aggregation layer of the network require extremely high throughput.
This 400G DWDM module can be used to connect core routers or switches to build a high-speed link up to 80 kilometers long, meeting the growing demand for network traffic.
3. High-performance computing (HPC) and scientific research networks:
Supercomputing centers between universities, research institutions or national laboratories need to exchange massive amounts of data (such as astronomical data, particle collider data, genetic sequences, etc.).
These facilities may be separated by tens of kilometers, and this module can provide a very high-speed dedicated link.
4. Long-distance interconnection of enterprise parks/branches:
For some large enterprises (such as large manufacturing parks, ports, airports), the core data center and remote branches or factories may require ultra-high-speed and long-distance connections. This module can handle it.
In addition to Cisco DP04QSDD-HE0 , Liyuan Tech supply a wide range of other Cisco Series transceivers. If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com
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