Cisco CW47-SFP1G-120-I Compatible 1G SFP Transceiver Module
Built for hosts recognizing CW47-SFP1G-120-I, this HT-manufactured SFP module delivers 1G transmission at 1470nm. Its rated reach is 120km, with Duplex LC as the physical interface. The specifications and engineering guidance below support field technicians install, maintain and identify the exact compatible module, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: CW47-SFP1G-120-IHT Part Number: CW47-SFP1G-120-I
Product Highlights
- Compatible alternative to Cisco CW47-SFP1G-120-I
- 1G connectivity at 1.25Gbps
- Optical wavelength: 1470nm
- Specified reach: 120km
- Duplex LC / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| HT Part Number | CW47-SFP1G-120-I |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max Data Rate | 1.25Gbps |
| Wavelength | 1470nm |
| Max Cable Distance | 120km |
| Connector | Duplex LC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | APD |
| Receiver Sensitivity | <-31dBm |
| SMSR | 30dB |
| TX Power | 0~5dBm |
| RX Power | -31~-10dBm |
| Power Consumption | ≤1.5W |
| Power Budget | 31dB |
| EMC (Electro Magnetic Comnatihility) | Supported |
| DDM/DOM | Supported |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| Protocols | SFP MSA,SFF-8472,IEEE 802.3z |
Field Installation and Maintenance
Inspect the connector and patch lead before installation, then support the fiber without pulling on the module housing. Release the latch properly during maintenance and keep dust protection on unused interfaces. If a module is removed for later use, retain its part-number label and record its original port. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1470nm, rated reach 120km.
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 1470nm, then include their insertion loss in the 120km 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 <-31dBm; the stated optical power budget is 31dB. 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.
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.
Cisco Compatibility and Factory Testing
Compatibility testing for CW47-SFP1G-120-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.
Frequently Asked Questions
Is this an original Cisco transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies CW47-SFP1G-120-I, not an original Cisco-branded module.
Which fiber and connector are required?
Use Duplex LC with SMF. The specified maximum reach is 120km, 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 CW47-SFP1G-120-I as the compatibility cross-reference and CW47-SFP1G-120-I 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.
