10/100BASE-T SFPCisco QDD-400G-ZRP-S Compatible 400G QSFP-DD Transceiver Module
This Cisco QDD-400G-ZRP-S compatible transceiver provides 400G connectivity in a hot-swappable QSFP-DD package. Its optical design operates at 1528.77nm-1567.13nm for up to ＞600km, using Duplex LC/UPC. Complete parameters and related OEM references help structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: QDD-400G-ZRP-SHT Part Number: QDD-ZRP-400G
Product Highlights
- Compatible alternative to Cisco QDD-400G-ZRP-S
- 400G connectivity at 100/200/300/400 Gbps
- Optical wavelength: 1528.77nm-1567.13nm
- Specified reach: ＞600km
- Duplex LC/UPC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0~70℃
Specifications
| Cisco Compatible | QDD-400G-ZRP-S |
|---|---|
| Manufacturer | HT |
| HT Part Number | QDD-ZRP-400G |
| Form Factor | QSFP-DD |
| Max. Data Rate | 100/200/300/400 Gbps |
| Wavelength | 1528.77nm-1567.13nm |
| Max. Cable Distance | ＞600km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| CD Tolerance | ZR400-OFEC-16QAM: 12.0ns/nmZR300-OFEC-8QAM: 18.0ns/nmZR200-OFEC-QPSK: 24.0ns/nmZR100-OFEC-QPSK: 48.0ns/nm |
| DDM/DOM | Supported |
| TX Power | -13~-7dBm |
| RX Power | Amplified: Full Rx OSNR tolerance: -12~0dBm Extended range: ZRx00-OFEC: -18~3dBm 400ZR: -15~1dBm Unamplified: 400ZR: -20~0dBm ZR400-OFEC-16QAM: -23~0dBm ZR300-OFEC-8QAM: -26~0dBm ZR200-OFEC-QPSK: -30~0dBm ZR100-OFEC-QPSK: -32~0dBm |
| Max. Power Consumption | 22.5W |
| Commercial Temperature Range | 0~70℃ |
| OSNR Tolerance | 400G ZR: 26dB/0.1nm400G ZR+: 23.5dB/0.1nm300G ZR+: 20dB/0.1nm200G ZR+: 15dB/0.1nm100G ZR+: 12dB/0.1nm |
| Inbuilt FEC | OFEC, CFEC |
| Modulation Format | 100G DP-QPSK,200G DP-QPSK,300G DP-8QAM,400G DP-16QAM |
| Protocols | Open ZR+ MSA 2.0 and OIF-400ZR-02.0, OIF-CMIS-05.2, OIF-C-CMIS-01.2, QSFP-DD-Hardware-Rev6.3, IEEE Std 802.3-2018 |
Applications and Optical Link Design
This coherent interface is suited to data-center interconnect, metro transport and managed DWDM links where the host platform supports the stated modulation and FEC modes. Design the optical line around the actual launch power, receiver range, OSNR requirement and span loss; the stated reach is not a substitute for a link-budget calculation. Use matching coherent modules and the appropriate DWDM channel plan at both ends.
Before deployment, check the host port type, supported data rate and firmware requirements. The 400G interface configuration must match the remote equipment; sharing a QSFP-DD housing alone does not make two transceiver types interoperable.
For this coherent interface, document the wavelength plan and modulation or FEC settings before commissioning. Measure span loss and verify adequate OSNR. Interoperability depends on compatible coherent modes as well as form factor, so another coherent part number must not be substituted without engineering review.
Cisco Compatibility and Factory Testing
The module is checked for host recognition as QDD-400G-ZRP-S, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -13~-7dBm. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Structured Fiber Pathways and Serviceability
Treat the transceiver as part of the complete channel. Follow the intended patch-panel route, maintain bend control and leave service access around the port. Confirm connector polish and fiber type at every mated pair; a documented service allowance is preferable to excess slack concealed inside a rack. For this model, the principal parameters are data rate 100/200/300/400 Gbps, wavelength 1528.77nm-1567.13nm, rated reach ＞600km.
Ordering Information
When ordering, specify QDD-400G-ZRP-S, QDD-ZRP-400G, quantity and intended host platform. Project labels can repeat these details for receiving and asset records. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Quality Assurance and Packaging
Each QDD-400G-ZRP-S compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original Cisco transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QDD-400G-ZRP-S, not an original Cisco-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with SMF. The specified maximum reach is ＞600km, subject to fiber quality and total link loss.
Can it be mixed with another wavelength or reach version?
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.
