Calix SFP-BU20-45-CAL Compatible SFP BiDi BX-U 20km Transceiver Module

The SFP-BU20-45-CAL is an SFP optical transceiver compatible with Calix platforms.

• Form Factor: SFP
• Protocol: BX-U
• Reach: 20km
• OEM Equivalent: SFP-BU20-45-CAL

Compatibility: The SFP-BU20-45-CAL-TFO is TenFour Optics' compatible equivalent of the Calix SFP-BU20-45-CAL, coded per order for your platform. Calix lists the SFP-BU20-45-CAL for use in 1G SFP ports on: Calix E7-2 Intelligent Modular System, Calix E7-20 Ethernet Service Access Platform, and Calix E9-2 Intelligent Edge System. Add your switch model and OS release in the order notes, or email 10.4@tenfouroptics.com, and we confirm coding before it ships.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

OEM-compatible and MSA-compliant. Compliance documentation (RoHS declaration, IEC 60825-1 laser classification) is available on request for project quotes. Digital Diagnostic Monitoring (DDM/DOM) supported. Every module is tested for traffic conformity per supported layer 2/3 protocols, DOM threshold verification, EEPROM/MSA value verification, serial number verification, and optical cleanliness before shipment.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time.

Download datasheet (PDF)