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Extensive Range of Products

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At Black Box Network Services, we make it easy to find what you’re looking for—whether you’re browsing our award-winning Web site, flipping through the pages of our interactive e-catalog, using our handy print catalog, or talking with an expert on our FREE 24/7 Tech Support hotline.

From basic cables to complex Ethernet switches, you’ll find what you need to build, maintain, optimize, and secure your network. What's more, we're committed to bringing you the latest and best technologies.

Our extensive product range includes:
• Cabinets & Racks
• Cables
• Datacom
• Digital Signage & Multimedia
• Gadgets
• Industrial
• Infrastructure Hardware
• KVM
• Networking
• Power
• Premises Security
• Servers, Storage, & PCs
• Testers & Tools
• Voice Communications

Don’t see exactly what you need? We can also customize products to your exact specifications.

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  • NEMA ratings for enclosures.
  • Use one set of twisted-pair wires for both data and low-wattage appliances.
  • In addition to the applications noted above, PoE also works well for video surveillance, building management, retail video kiosks, smart signs, vending machines, and retail point-of-information systems.
  • Save money by eliminating the need to run electrical wiring.
  • Easily move an appliance with minimal disruption.
  • If your LAN is protected from power failure by a UPS, the PoE devices connected to your LAN are also protected from power failure.

  • Converters and Scalers Selector
    PoE Standards PoE
    IEEE 802.3 af
    PoE IEEE 802.3 at
    Power available at powered device 12.95 W 25.5
    Maximum power delivered 15.40 W 34.20
    Voltage range at powred source 44.0-57.0 V 50.0-57.0 V
    Voltage range at powred device 37.0-57.0 42.5-57.0 V
    Maximum current 350 mA 600 mA
    Maximum cable resistance 20 ohms 12.5 ohms
Power over Ethernet (PoE).
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