Cisco CWDM-SFP10G-1270-I Compatible 10G SFP+ Transceiver Module
This Cisco CWDM-SFP10G-1270-I compatible transceiver provides 10G connectivity in a hot-swappable SFP+ package. Its optical design operates at 1270nm for up to 40km, using Duplex LC. Complete parameters and related OEM references help procurement teams match an equipment parts list to a clearly defined optical product.
OEM Part Number: CWDM-SFP10G-1270-IHT Part Number: CW-SFP10G40-27-I
Product Highlights
- Compatible alternative to Cisco CWDM-SFP10G-1270-I
- 10G connectivity at 11.3Gbps
- Optical wavelength: 1270nm
- Specified reach: 40km
- Duplex LC / SMF interface
- Operating temperature: -40 to 85°C (-40 to 185°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| Cisco Compatible | CWDM-SFP10G-1270-I |
|---|---|
| Manufacturer | HT |
| HT Part Number | CW-SFP10G40-27-I |
| Form Factor | SFP+ |
| Max Data Rate | 11.3Gbps |
| Wavelength | 1270nm |
| Max Cable Distance | 40km |
| Connector | Duplex LC |
| Media | SMF |
| Power Consumption | 1W |
| Packaging Technology | TO |
| Optical Components | DFB CWDM |
| DOM Support | Yes |
| TX Power | 0~5dBm |
| RX Power | -16~0dBm |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Receiver Sensitivity | <-16dBm |
| Modulation | NRZ |
| Extinction Ratio | >3.5dB |
| Protocols | SFP+ MSA, CPRI, eCPRI, SFF-8431, SFF-8472, RoHS, ITU-T G.652 |
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.
Wavelength-selective links require the exact channel plan at both ends. Confirm that filters pass 1270nm, then include their insertion loss in the 40km power budget. A nearby channel is not a substitute for the specified wavelength.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 0~5dBm; receiver sensitivity is <-16dBm. 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. 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 11.3Gbps, wavelength 1270nm, rated reach 40km.
Cisco Compatibility and Factory Testing
Compatibility testing for CWDM-SFP10G-1270-I 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
Quote HT part number CW-SFP10G40-27-I together with OEM reference CWDM-SFP10G-1270-I 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.
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 Cisco transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies CWDM-SFP10G-1270-I, not an original Cisco-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 40km, 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.