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R&M Advances Power over Ethernet (PoE) Capabilities in Cabling Infrastructure Solutions

Submitted by J. Mikhail on

SHERIDAN, WYOMING – June 27, 2024 – R&M, a global leader in cabling solutions, today announced a comprehensive suite of offerings designed to optimize Power over Ethernet (PoE) delivery within modern network infrastructures. As the proliferation of IP-based devices continues across industries, R&M's innovative solutions address the escalating demand for robust and efficient power transmission over Ethernet cabling.

With the ubiquity of IP devices in local area networks (LANs), ensuring uninterrupted power supply is paramount.Conventional methods, such as batteries, prove impractical for fixed installations due to the need for frequent recharging or replacement. R&M offers two primary methodologies for external power delivery:

  1. Dedicated 230V Low-Voltage Lines: This robust approach guarantees stable power delivery without compromising data transmission integrity, provided installation adheres to best practices. R&M's portfolio includes advanced combined power/data outlet solutions based on the U-Box platform.
  2. Remote Powering via the Data Network (PoE): This increasingly prevalent methodology utilizes a Power Sourcing Equipment (PSE) to transmit power over designated cable pairs with a direct current in the unregulated low-voltage range of 48V. PoE obviates the need for separate power cabling, streamlining installation and reducing total cost of ownership.

R&M recognizes the growing significance of PoE and its standardized iterations, including PoEP (802.3at) and 4PPoE (802.3bt). The company provides in-depth whitepapers on these technologies, offering valuable insights into their implementation and advantages.

R&M Cabling Solutions Optimized for PoE

R&M's cabling solutions are engineered to mitigate the critical factors associated with PoE, PoEP, and 4PPoE, such as temperature elevation in cables due to power transmission, potential damage to RJ45 contacts from arcing during live disconnection, and temperature increases in connectivity due to contact degradation in line termination.

The entire R&Mfreenet component portfolio is compatible with PoE, PoEP, and 4PPoE applications. Products incorporating enhanced IDC termination are designated with the PowerSafe logo, ensuring optimal performance and reliability.

Remote Power Categories (RP1, RP2 & RP3)

R&M acknowledges the pivotal role of meticulous planning and installation in successful PoE deployment. To empower customers, R&M has integrated Remote Power Categories (RP) into its R&Mfreenet warranty system. The updated PoE Calculator V3 enables planners and installers to document the achieved RP category for end users.

Any correctly installed R&Mfreenet cabling system inherently complies with RP1. Leveraging planning documentation from the PoE Calculator and link measurement data, RP categories can be elevated to RP2 or RP3, ensuring a future-proof cabling infrastructure.

DC Resistance Unbalance (DCRU)

R&M underscores the importance of minimizing DC resistance unbalance (DCRU) when utilizing PoE. Channels and components exhibiting excessive DCRU can lead to complications in Ethernet device transceivers. Rigorous testing for resistance unbalance ensures that an installation supports PoE without data transmission degradation or uncontrolled thermal events. Comprehensive field tests, encompassing patch cables in channel tests, are essential for guaranteeing minimal DCRU.

R&M's holistic approach to PoE cabling solutions, coupled with its emphasis on meticulous planning, installation, and testing, empowers enterprises to harness the benefits of PoE technology while ensuring reliable and efficient power delivery for their IP-based devices.

For further information, please visit the R&M website or consult your local R&M representative.