DP01QS28-E20Cisco DP01QS28-E20 Compatible 100G QSFP28 Transceiver Module
The DP01QS28-E20 compatible module serves equipment requiring a 100G QSFP28 interface with C-Band 5THz DWDM Tunable optics and a 80km (unamplified)300km (amplified) rating. Connection is through Duplex LC/UPC. Product data, application guidance and factory verification are presented together to support structured fiber installations preserve a documented and serviceable optical channel.
OEM Part Number: DP01QS28-E20HT Part Number: QSFP-ZR-100G-S
Product Highlights
- Compatible alternative to Cisco DP01QS28-E20
- 100G connectivity at 100Gbps
- Optical wavelength: C-Band 5THz DWDM Tunable
- Specified reach: 80km (unamplified)300km (amplified)
- Duplex LC/UPC / Duplex SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | DP01QS28-E20 |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-ZR-100G-S |
| Form Factor | QSFP28 |
| Max. Data Rate | 100Gbps |
| Wavelength | C-Band 5THz DWDM Tunable |
| Max. Cable Distance | 80km (unamplified)300km (amplified) |
| Connector | Duplex LC/UPC |
| Media | Duplex SMF |
| Transmitter Type | Tunable |
| Receiver Type | Coherent |
| TX Power | -8~-4dBm |
| Minimum Receiver Power | -30dBm |
| Power Budget | 22dBm |
| Receiver Overload | 3dBm |
| Max. Power Consumption | ≤5.5W |
| Inbuilt FEC | RS (528,514), SC |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| CD Robustness | 100G DQPSK SC: 16.5dB/0.1nm |
| OSNR Tolerance | Default, OSNR penalty <0.5dB: 2.4ns/nmExtended, OSNR penalty < 1.0dB: 6.0ns/nm |
| Modulation Format | NRZ, DP-DQPSK |
| Protocols | IEEE 802.3™-2022, 100GBASE-ZR, CMIS, SFF-8024 |
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 100G interface configuration must match the remote equipment; sharing a QSFP28 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
Compatibility testing for DP01QS28-E20 combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. 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 -8~-4dBm; the stated optical power budget is 22dBm. During commissioning, record the host diagnostic readings after the link has stabilized and compare them with those limits. DOM values are useful operational indicators, but they do not replace calibrated optical measurements when a link is marginal. Investigate unexpected loss through connector inspection, cleaning and a channel measurement before replacing the module. 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 100Gbps, wavelength C-Band 5THz DWDM Tunable, rated reach 80km (unamplified)300km (amplified).
Ordering Information
Use DP01QS28-E20 as the compatibility cross-reference and QSFP-ZR-100G-S as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. 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 DP01QS28-E20 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 DP01QS28-E20, not an original Cisco-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with Duplex SMF. The specified maximum reach is 80km (unamplified)300km (amplified), 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.
