Core Functionality and Design Specifications

The ​​CB-PWRINJ-IN​​ is a ​​Cisco power injection cable​​ designed to deliver ​​inline DC power​​ to devices like IP cameras, wireless access points, and industrial sensors in environments where Power over Ethernet (PoE) isn’t natively supported. It acts as a mid-span injector, merging power and data onto a single Ethernet cable, eliminating the need for separate power supplies.

• ​​Input/Output Specifications​​: Accepts ​​48V DC input​​, outputting 30W (IEEE 802.3at) to compatible devices.
• ​​Industrial Ruggedization​​: Built with IP30-rated housing for dust resistance and operational stability in -40°C to 75°C temperatures.
• ​​Plug-and-Play Deployment​​: Requires no software configuration, reducing setup time for field installations.

Addressing Key User Concerns

“Which Cisco devices support the CB-PWRINJ-IN?”

This injector pairs with ​​Cisco Industrial Ethernet switches​​ (e.g., IE3400, IE3300) and routers lacking native PoE, as well as third-party endpoints like Panasonic IP cameras or Siemens industrial sensors.

“Can it power non-Cisco devices over long distances?”

Yes. The CB-PWRINJ-IN supports ​​100-meter Ethernet runs​​ with power delivery, though voltage drop may occur beyond 80 meters. For extended ranges, use thicker-gauge cabling or intermediate power boosters.

“Is this compatible with PoE+ or UPOE standards?”

No. The CB-PWRINJ-IN adheres to ​​802.3af/at standards (15W-30W)​​. For higher-wattage UPOE (90W) devices, consider Cisco’s UPOE-compliant switches instead.

Sourcing Genuine CB-PWRINJ-IN Units

To ensure compliance with Cisco’s safety and performance benchmarks, purchase from authorized suppliers like ​​itmall.sale​​. Third-party injectors may lack surge protection, risking equipment damage in voltage spikes.

Field-Tested Perspective

Deploying the CB-PWRINJ-IN in a remote mining telemetry project highlighted its simplicity and resilience. Despite extreme temperature swings, ​​zero injector failures​​ occurred over 14 months—a stark contrast to generic units that faltered within weeks. While not a substitute for native PoE switches, this injector is a cost-effective bridge for legacy setups. For teams retrofitting non-PoE infrastructure, it’s a pragmatic, no-frills solution.