Cisco DP01QS28-E20 Compatible 100G QSFP28 Transceiver Module
Built for hosts recognizing DP01QS28-E20, this HT-manufactured QSFP28 module delivers 100G transmission at C-Band 5THz DWDM Tunable. Its rated reach is 80km (unamplified)300km (amplified), with Duplex LC/UPC as the physical interface. The specifications and engineering guidance below support procurement teams match an equipment parts list to a clearly defined optical product, while keeping HT manufacture separate from the OEM cross-reference.
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.
Coherent deployment requires a line-system review, not merely a matching connector. Confirm the DWDM channel, launch-power range, receiver limits, OSNR and FEC mode at both ends. Span loss and amplifier operation must remain inside the supported envelope, and stated reach should be validated against the actual route.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -8~-4dBm; the stated optical power budget is 22dBm. 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.
Procurement and Asset Identification
A useful purchase order identifies the host platform, expected OEM code and optical standard separately. This prevents a module with the same housing but another wavelength, reach or identification profile from being substituted. For mixed deployments, keep one order line per OEM reference and reconcile each received unit with its intended port. For this model, the principal parameters are data rate 100Gbps, wavelength C-Band 5THz DWDM Tunable, rated reach 80km (unamplified)300km (amplified).
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.
Ordering Information
When ordering, specify DP01QS28-E20, QSFP-ZR-100G-S, 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.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. 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.
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.