OC-12/STM-4NETGEAR OC-12/STM-4 Compatible 1G SFP Transceiver Module 40km 1310nm-TX/1550nm-RX
Built for hosts recognizing OC-12/STM-4, this HT-manufactured SFP module delivers 1G transmission at 1310nm-TX/1550nm-RX. Its rated reach is 40km, with Simplex LC as the physical interface. The specifications and engineering guidance below support structured fiber installations preserve a documented and serviceable optical channel, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: OC-12/STM-4HT Part Number: SDH-SFP-OC12-BX40-U
Product Highlights
- Compatible alternative to NETGEAR OC-12/STM-4
- 1G connectivity at 622Mbps
- Optical wavelength: 1310nm-TX/1550nm-RX
- Specified reach: 40km
- Simplex LC / SMF interface
- Operating temperature: 0 to 70°C (32 to 158°F)
- Factory compatibility verification and optical performance testing before shipment
Specifications
| HT Part Number | SDH-SFP-OC12-BX40-U |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP |
| Max Data Rate | 622Mbps |
| Wavelength | 1310nm-TX/1550nm-RX |
| Max Cable Distance | 40km |
| Connector | Simplex LC |
| Optical Components | DFB BiDi |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -3~+2dBm |
| Receiver Sensitivity | < -28dBm |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
Applications and Optical Link Design
This BiDi interface is useful where only one fiber strand is available between two sites or racks. It must be paired with the complementary wavelength direction: one end transmits on the wavelength that the other end receives. Verify the paired part number, connector polish and fiber plant before installation, and measure link loss against the specified optical budget.
Before deployment, check the host port type, supported data rate and firmware requirements. The 1G interface configuration must match the remote equipment; sharing a SFP housing alone does not make two transceiver types interoperable.
BiDi operation saves a fiber strand but makes wavelength orientation critical. Record the part installed at each end and check its paired receive wavelength. The 40km rating still depends on total channel loss, including connectors and splices.
NETGEAR Compatibility and Factory Testing
Compatibility testing for OC-12/STM-4 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.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -3~+2dBm; receiver sensitivity is < -28dBm. 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.
Structured Fiber Pathways and Serviceability
Treat the transceiver as part of the complete channel. Follow the intended patch-panel route, maintain bend control and leave service access around the port. Confirm connector polish and fiber type at every mated pair; a documented service allowance is preferable to excess slack concealed inside a rack. For this model, the principal parameters are data rate 622Mbps, wavelength 1310nm-TX/1550nm-RX, rated reach 40km.
Ordering Information
Quote HT part number SDH-SFP-OC12-BX40-U together with OEM reference OC-12/STM-4 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.
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
Each OC-12/STM-4 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.
Frequently Asked Questions
Is this an original NETGEAR transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies OC-12/STM-4, not an original NETGEAR-branded module.
Which fiber and connector are required?
Use Simplex 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.
