C21 DWDM-SFP10G-60.61-80Ciena C21 DWDM-SFP10G-60.61-80 Compatible 10G SFP+ Transceiver Module
The C21 DWDM-SFP10G-60.61-80 compatible module serves equipment requiring a 10G SFP+ interface with 1560.61nm optics and a 80km on OS2 rating. Connection is through Duplex LC/UPC. Product data, application guidance and factory verification are presented together to support high-density deployments balance optical performance, port access and thermal planning.
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 |
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.
Wavelength-selective links require the exact channel plan at both ends. Confirm that filters pass 1560.61nm, then include their insertion loss in the 80km on OS2 power budget. A nearby channel is not a substitute for the specified wavelength.
Quality Assurance and Packaging
Each C21 DWDM-SFP10G-60.61-80 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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -1~5dBm; the stated optical power budget is 22dB. 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.
High-Density Port and Thermal Planning
In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 11.3Gbps, wavelength 1560.61nm, rated reach 80km on OS2.
Ordering Information
Quote HT part number DW-SFP10G80-21 together with OEM reference C21 DWDM-SFP10G-60.61-80 and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Ciena Compatibility and Factory Testing
Compatibility testing for C21 DWDM-SFP10G-60.61-80 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.
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.
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.
