FT21AC01101 2x1 Port SFP Cage Connector With OuterInner LightPipe

F-tone FT21AC01101 2x1 Port SFP Stacked Receptacle and Cage Assembly

Engineered to maximize faceplate I/O density while streamlining printed circuit board (PCB) assembly, the F-tone FT21AC01101 is a highly integrated 2x1 (stacked) SFP cage and electrical receptacle. By vertically stacking two Small Form-factor Pluggable (SFP) ports within a narrow 14.00mm footprint, this connector allows data center architects and hardware designers to effectively double the port capacity of standard 1U or 2U chassis designs. Unlike standalone cages, this comprehensive module integrates both the mechanical EMI shielding cage and the electrical receptacle into a single, pre-aligned unit, ensuring flawless transceiver mating.

Constructed from a premium Copper Alloy with 30u" plating, this robust cage assembly delivers superior structural integrity and long-term resistance to oxidation. Featuring a rugged industrial operating temperature range of -40°C to +85°C, the FT21AC01101 guarantees mission-critical reliability for climate-controlled enterprise data centers as well as unconditioned outdoor edge computing environments.

Integrated Inner & Outer LightPipes for Visual Diagnostics

In high-density 2x1 stacked configurations, providing clear, port-level diagnostic feedback for both the upper and lower receptacles is a significant mechanical challenge. The FT21AC01101 resolves this by incorporating precision-engineered Inner and Outer LightPipes.

• Comprehensive Visibility: These dedicated optical channels efficiently capture light from surface-mounted LEDs located on the PCB and route it directly to the front chassis bezel for both the top and bottom ports.
• Simplified Troubleshooting: Provides network administrators with immediate, unambiguous visual status indicators (such as Link and Activity) without compromising the cage’s electromagnetic shielding or requiring complex external LED light-guides.

Advanced EMI Containment & Shielding

Managing Electromagnetic Interference (EMI) in high-density, multi-port chassis configurations is a critical design mandate. The FT21AC01101 achieves superior electromagnetic compatibility (EMC) through its heavy-duty construction.

• Continuous Shielding: The premium copper alloy cage acts as a continuous Faraday shield, aggressively containing internal high-frequency emissions generated by the PHY transceivers and ensuring strict compliance with FCC and CE regulatory standards.
• Chassis Grounding: Designed to mate seamlessly with metallic chassis bezels, the cage creates a low-impedance electrical path to ground, effectively sealing the enclosure against external Radio Frequency Interference (RFI).
• Port-to-Port Isolation: Internal metallic dividers between the upper and lower receptacles act as physical and electrical barriers, dramatically reducing near-end crosstalk (NEXT) between the stacked SFP modules.

Mechanical Design & Press-Fit PCB Integration

Hardware engineers prioritize long-term mechanical reliability and high-yield manufacturing. The FT21AC01101 leverages advanced solderless technology to optimize the assembly workflow.

• Press-Fit (Compliant Pin) Technology: The assembly 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 eliminates the thermal stress of secondary wave soldering.
• Optimized PCB Compatibility: Specifically designed for heavier, multi-layer telecom-grade boards, requiring a recommended PCB thickness of 2.36mm (0.093 inches) to ensure proper press-fit engagement and long-term mechanical stability.

Typical Applications

Combining massive stacked port density, industrial-grade thermal resilience, and integrated visual diagnostics, the FT21AC01101 is the optimal interconnect solution for high-throughput network architectures:

• Data Center & Enterprise Switching: High-density Top-of-Rack (ToR) switches, core routers, and network aggregation devices demanding visually monitored 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.