
Built for hosts recognizing MGBIC-BX20-D, this HT-manufactured SFP module delivers 1G transmission at 1490nm-TX/1310nm-RX. Its rated reach is 20km, with Simplex LC as the physical interface. The specifications and engineering guidance below support network teams verify host acceptance as well as physical interface fit, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: MGBIC-BX20-DHT Part Number: SFP-1G43-BX20
| Extreme Networks Compatible | MGBIC-BX20-D |
|---|---|
| Manufacturer | HT |
| HT Part Number | SFP-1G43-BX20 |
| Form Factor | SFP |
| Max. Data Rate | 1.25Gbps |
| Wavelength | 1490nm-TX/1310nm-RX |
| Max Cable Distance | 20km |
| Connector | Simplex LC |
| Optical Components | DFB BiDi |
| Media | SMF |
| DOM Support | Yes |
| TX Power | -9~-3dBm |
| Receiver Sensitivity | <-20dBm |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
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.
This single-fiber interface must be paired with the complementary wavelength direction. One end transmits on the wavelength the other receives. Verify connector polish and measure loss over the 20km design range before service.
Compatibility testing for MGBIC-BX20-D 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.
For this model, the specified transmit-power range is -9~-3dBm; receiver sensitivity is <-20dBm. 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. 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.
Check three layers before deployment: host acceptance of the module identity, port support for the stated rate, and a matching optical standard at the remote interface. For breakout operation, confirm lane configuration too. Similar-looking cages can behave differently across speeds and firmware settings. For this model, the principal parameters are data rate 1.25Gbps, wavelength 1490nm-TX/1310nm-RX, rated reach 20km.
Use MGBIC-BX20-D as the compatibility cross-reference and SFP-1G43-BX20 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.
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.
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.
No. It is an HT-manufactured compatible alternative for equipment that specifies MGBIC-BX20-D, not an original Extreme Networks-branded module.
Use Simplex LC with SMF. The specified maximum reach is 20km, subject to fiber quality and total link loss.
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.