Netgear C21 DWDM-SFP10G-60.61-I Compatible 10G SFP+ Transceiver Module 40km on OS2
This Netgear C21 DWDM-SFP10G-60.61-I compatible transceiver provides 10G connectivity in a hot-swappable SFP+ package. Its optical design operates at 1560.61nm for up to 40km on OS2, using Duplex LC/UPC. Complete parameters and related OEM references help procurement teams match an equipment parts list to a clearly defined optical product.
OEM Part Number: C21 DWDM-SFP10G-60.61-IHT Part Number: DW-SFP10G40-21-I
Product Highlights
- Compatible alternative to Netgear C21 DWDM-SFP10G-60.61-I
- 10G connectivity at 10Gbps
- Optical wavelength: 1560.61nm
- Specified reach: 40km on OS2
- Duplex LC/UPC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| NETGEAR Genuine | DWDM-SFP10G-60.61-I |
|---|---|
| Manufacturer | HT |
| HT Part Number | DW-SFP10G40-21-I |
| Form Factor | SFP+ |
| Max Data Rate | 10Gbps |
| Wavelength | 1560.61nm |
| Max. Data Rate | 11.3Gbps |
| Wavelength | 1563.86nm |
| Max. Cable Distance | 40km@OS2 |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | DWDM EML |
| Receiver Type | PIN |
| TX Power | -1~4dBm |
| Minimum Receiver Power | -15dBm |
| Power Budget | 14dB |
| Receiver Overload | 0dBm |
| Max. Power Consumption | 1.9W |
| Extinction Ratio | >6dB |
| DDM/DOM | Supported |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Protocols | SFP+ MSA, SFF-8431, SFF 8472, 10GBASE-ER/EW, SDH STM64 |
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.
The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.
For this 1560.61nm interface, verify channel spacing and filter compatibility. Passive filters add loss even without active equipment, so assess 40km 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 -1~4dBm; the stated optical power budget is 14dB. 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.
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 10Gbps, wavelength 1560.61nm, rated reach 40km on OS2.
Netgear Compatibility and Factory Testing
The module is checked for host recognition as C21 DWDM-SFP10G-60.61-I, 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.
Ordering Information
When ordering, specify C21 DWDM-SFP10G-60.61-I, DW-SFP10G40-21-I, 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
Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.
Frequently Asked Questions
Is this an original Netgear transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies C21 DWDM-SFP10G-60.61-I, not an original Netgear-branded module.
Which fiber and connector are required?
Use Duplex LC/UPC with SMF. The specified maximum reach is 40km 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.