Cisco Linksys MGBBX1 Compatible BYXGD 1000BASE-BX-U SFP transmits at 1.25 Gbps across single-mode fiber with a maximum distance of 20 km using 1310 nm TX/1490 nm RX through a simplex LC/UPC connector. The module supports DOM/DDM, allowing you to read temperature, voltage, laser bias, and TX/RX optical power. The module operates in the commercial temperature range of 0–70°C, requires <1 W power, and complies with SFF-8472 diagnostics and SFP MSA electrical specifications using 100 Ω differential signaling.
The optical design is a bidirectional (BiDi) configuration with a built-in wavelength division multiplexing (WDM) portion; the far end will require a complementary BX-D. The typical launch power is −9 to −3 dBm with receiver sensitivity of −20/−22 dBm depending on the platform. 20 km link lengths use G.652 SMF. The design is Class 1 laser safe, and the materials comply with RoHS standards.
This module, with its form factor, is compatible with brands and models including Cisco Linksys MGBBX1; Juniper Networks SFP-GE20KT13R14; Brocade E1MG-BXU-20; HPE J9143B-20; H3C SFP-GE-LX20-SM1310; HW BiDi SFP-GE-20-SM1310; Dell SFP-GE-BX20U-1310; Extreme Networks MGBIC-BX20-U; Alcatel-Lucent SFP-GIG-BX-U20.
Specifications
| Parameter | Specification |
| Brand | BYXGD |
| Cisco Compatibility | MGBBX1 |
| Form Factor | SFP (hot‑pluggable) |
| Max. Data Rate | 1.25 Gbps |
| Wavelength | 1310 nm TX / 1490 nm RX |
| Max Cable Distance | 20 km |
| Connector | Simplex LC |
| Optical Components | FP BiDi |
| Media | SMF |
| DOM Support | Yes |
| TX Power | −9 to −3 dBm |
| Receiver Sensitivity | < −22 dBm (also < −20 dBm per some platforms) |
| Operating Temperature (Commercial) | 0 to 70 °C (32 to 158 °F) |
| Protocols | Gigabit Fibre Channel; Fast Ethernet; MSA Compliant |
| Electrical Interface | 100 Ω differential, AC‑coupled (SFP MSA) |
| Management | SFF‑8472 DOM/DDM over I²C |
| Laser Safety | Class 1 |
| Environmental | RoHS compliant |
| Pairing Requirement | Use with BX‑D (1490 nm TX / 1310 nm RX) over one SMF strand |
Reviews
Clear filtersThere are no reviews yet.