F-tone FT21AC02301 SFP 2x1 Cage Connector Press-Fit With Outer LightPipe

F-tone FT21AC02301 2x1 Port SFP Stacked Cage with Outer LightPipe

Engineered to maximize faceplate I/O density in demanding data center and telecommunications infrastructure, the F-tone FT21AC02301 is a highly robust 2x1 (stacked) SFP cage assembly. By vertically stacking two Small Form-factor Pluggable (SFP) ports into a streamlined 14.00mm wide footprint, this right-angle cage enables hardware architects to effectively double the port capacity of standard 1U or 2U networking chassis. Designed to envelop and shield PCB-mounted electrical receptacles, this cage provides critical mechanical alignment and structural protection for high-speed pluggable transceivers.

Constructed from a premium Nickel-Plated Copper Alloy, this heavy-duty cage delivers superior structural rigidity and uncompromising resistance to oxidation and corrosion. Featuring an extreme industrial operating temperature range of -40°C to +85°C, the FT21AC02301 guarantees mission-critical reliability for both climate-controlled enterprise data centers and unconditioned outdoor edge computing enclosures.

Integrated Outer LightPipes for Visual Diagnostics

Providing clear, port-level diagnostic feedback in high-density 2x1 stacked configurations can present a significant mechanical challenge. The FT21AC02301 intelligently resolves this by incorporating precision-engineered Outer LightPipes directly into the cage architecture.

• Targeted Port Visibility: These external optical channels efficiently capture light from surface-mounted LEDs located on the PCB and route it directly to the front chassis bezel, providing network administrators with immediate visual status indicators (such as Link and Activity).
• Optimized Internal Clearance: By utilizing outer lightpipes, the internal profile of the cage remains completely unobstructed. This design is highly advantageous for custom faceplate bezels and specific transceiver latching mechanisms that require tight internal clearances while still delivering essential diagnostic capabilities.

Advanced EMI Containment & Shielding

Managing Electromagnetic Interference (EMI) in high-density, multi-port chassis configurations is a critical design mandate. The FT21AC02301 achieves superior electromagnetic compatibility (EMC) through its advanced shielding construction.

• Nickel-Plated Copper Construction: The premium alloy acts as a continuous Faraday shield, aggressively containing internal high-frequency emissions generated by the PHY transceivers and ensuring strict compliance with FCC, CE, and CISPR regulatory standards.
• Active EMI Springs: Heavy-duty metallic EMI springs surround the perimeter of the port openings. These springs ensure continuous, low-impedance electrical contact with the metallic chassis bezel, aggressively sealing the enclosure against external Radio Frequency Interference (RFI).
• Port-to-Port Isolation: Internal metallic dividers between the upper and lower ports act as physical and electrical barriers, dramatically reducing near-end crosstalk (NEXT) and electromagnetic coupling between the stacked SFP modules.

Mechanical Design & Press-Fit PCB Integration

Hardware engineers prioritize long-term mechanical reliability alongside high-yield automated manufacturing. The FT21AC02301 leverages advanced solderless technology to optimize the PCB assembly workflow.

• Press-Fit (Compliant Pin) Technology: The cage utilizes a Through-Hole Press-Fit mounting style. The compliant pins are driven directly into plated through-holes (PTH) on the PCB, creating a cold-welded, gas-tight mechanical bond that heavily resists vibration, physical shock, and completely eliminates the thermal stress associated with secondary wave soldering.
• Tray Packaging for Automation: Supplied in standard tray packaging, ensuring component protection during transit and seamless integration into automated factory floor pick-and-place assembly lines.

Typical Applications

Combining massive stacked port density, targeted outer lightpipe diagnostics, industrial-grade thermal resilience, and a robust press-fit design, the FT21AC02301 is the optimal interconnect housing for high-throughput network architectures:

• Data Center & Enterprise Switching: High-density Top-of-Rack (ToR) switches, core edge routers, and network aggregation devices demanding visually monitored, space-saving stacked port matrices.
• Telecommunications Infrastructure: Broadband access hubs, 5G baseband units (BBUs), and fiber-to-the-x (FTTX) optical line terminals (OLTs).
• Industrial & Edge Computing: Ruggedized industrial Ethernet switches and micro-data center nodes deployed in extreme temperature environments (-40°C to +85°C).
• Network Security: Next-generation firewalls, intrusion detection systems (IDS), and unified threat management (UTM) hardware requiring robust EMI containment and clear port diagnostics.