with Layer 3 routed access design principles and fabric overlay capabilities. For maximum deployment flexibility, one might consider using a Class 4 rated cable along with a Class 4 FMPS.
FMPS can help network designers overcome the challenges associated with supporting connected devices and give the freedom and flexibility to locate modular IDF/TR resources anywhere for simplified and scalable networks. As new technologies and devices move closer to the source of data generation at the network edge, FMPS can ensure that the necessary bandwidth and power are also accessible. CREATING SIMPLIFIED AND SCALABLE EDGE NETWORKS It is common to have multiple devices located close to each other. For example, a building lobby might have a security camera, an IP phone, and an access control badge reader. Similarly, a parking lot pole might have a security camera and an access point. Grouping and connecting these devices to the same edge switch is a sensible approach. When selecting the appropriate edge switch and its supporting infrastructure, several factors must be taken into consideration, including port count, port band- width, port PoE power, environmental conditions, and other relevant aspects. The requirements for this zone can be very dynamic and may change over time. Therefore, the goal of the network design should be to accommodate current and future needs as the port count grows and both bandwidth and power requirements increase at the zone. When designing campus networks for future scalability and extended reach requirements, one should consider implementing edge switches with hybrid fiber/copper infrastructure to extend beyond traditional 100 m (328 ft) copper limitations. Deploying edge nodes connected via a hybrid cable containing both fiber for high-bandwidth data transmission and copper conductors for power delivery enables connectivity at extended distances from the access switch location. The hybrid cabling approach allows for simplified cable management compared to running separate fiber and copper lines while maintaining the ability to deliver PoE/PoE+ power alongside multi-gigabit data rates. This future-ready design ensures the network can adapt to increasing bandwidth demands and power requirements at the edge while maintaining consistency
CONNECTING AND POWERING THE EDGE SWITCH
For compact switches that feature native high voltage DC (HVDC) support for 120-418V DC inputs, direct connection to a Class 4 power system is ideal. The recommendation would be to use a hybrid cable with four single mode fibers (SMF) and four copper (CU) conductors with Class 4 (CL4) 450V ratings and an FMPS that is UL1400-1 certified. For switches requiring up to 715W DC power, implementing an intelligent power supply with 8x1 power aggregators that provide 57V DC/100W per port has proven to work well. A single 8x1 aggregator that combines multiple power supplies can deliver sufficient power for a fully loaded PoE+ switch while maintaining Class 2 (CL2) circuit benefits. The recommendation would be to implement a hybrid cable with 12 SMF and 12 CU conductors with Class 3 (CL3) 300V ratings (or CL4 like above) for larger, higher power switches.
This dual approach enables:
• Direct HVDC connection for compact switches supporting renewable integration.
• CL2 power aggregation for standard switches requiring higher power budgets.
• Extended reach capabilities and simplified cable management through hybrid cable infrastructure.
• Flexible power scaling through modular power supply deployment.
• Future-ready infrastructure capable of supporting both power and bandwidth growth.
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