Ciena C21 DWDM-SFP10G-60.61-80 Compatible 10G SFP+ Transceiver Module
Built for hosts recognizing C21 DWDM-SFP10G-60.61-80, this HT-manufactured SFP+ module delivers 10G transmission at 1560.61nm. Its rated reach is 80km on OS2, with Duplex LC/UPC as the physical interface. The specifications and engineering guidance below support project teams keep OEM references, delivery records and port schedules aligned, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: C21 DWDM-SFP10G-60.61-80HT Part Number: DW-SFP10G80-21
Product Highlights
- Compatible alternative to Ciena C21 DWDM-SFP10G-60.61-80
- 10G connectivity at 11.3Gbps
- Optical wavelength: 1560.61nm
- Specified reach: 80km on OS2
- Duplex LC/UPC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Ciena Genuine | DWDM-SFP10G-60.61-80 |
|---|---|
| Manufacturer | HT |
| HT Part Number | DW-SFP10G80-21 |
| Form Factor | SFP+ |
| Max. Data Rate | 11.3Gbps |
| Wavelength | 1560.61nm |
| Max. Cable Distance | 80km@OS2 |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | EML DWDM |
| Receiver Type | APD |
| TX Power | -1~5dBm |
| Minimum Receiver Power | -23dBm |
| Power Budget | 22dB |
| Receiver Overload | -6dBm |
| Max. Power Consumption | 1.7W |
| Extinction Ratio | ＞6dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Bit Error Ratio (BER) | 1E-12 |
| MTBF | 1,000,000 Hours |
| Protocols | 10GBASE-ZR/ZW, SDH STM64, SFF-8431, SFF-8472 |
Project Documentation and Traceability
Large deployments are easier to audit when the order code, optical standard and endpoint record agree. Keep the OEM reference in the compatibility document and the HT part number on the packing list. Labels and carton groups can be arranged by rack or port plan so installers need not identify modules by appearance. For this model, the principal parameters are data rate 11.3Gbps, wavelength 1560.61nm, rated reach 80km on OS2.
Ciena Compatibility and Factory Testing
The module is checked for host recognition as C21 DWDM-SFP10G-60.61-80, 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.
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 10G interface configuration must match the remote equipment; sharing a SFP+ housing alone does not make two transceiver types interoperable.
For this 1560.61nm interface, verify channel spacing and filter compatibility. Passive filters add loss even without active equipment, so assess 80km on OS2 using the complete channel rather than fiber distance alone.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -1~5dBm; the stated optical power budget is 22dB. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. 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.
Frequently Asked Questions
Is this an original Ciena transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies C21 DWDM-SFP10G-60.61-80, not an original Ciena-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with SMF. The specified maximum reach is 80km on OS2, 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.
Ordering Information
Use C21 DWDM-SFP10G-60.61-80 as the compatibility cross-reference and DW-SFP10G80-21 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
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.
