PoE - Power over Ethernet Clocks

PoE (Power over Ethernet) clocks leverage the Power over Ethernet standard to receive both power and data through a single Ethernet cable. This standard enables the transmission of power and data via a Cat 5/6 cable from a powered switch to the end device. For PoE clocks, this means they receive time updates, power, and data all through one cable.

The accuracy of PoE clocks is significantly enhanced by their ability to synchronise with an NTP (Network Time Protocol) time server via the network cable. This ensures precise timekeeping, with updates from a local network, remote internet-based timeservers, or GPS SNTP timeservers. Digital PoE clocks typically achieve accuracy within 200 milliseconds, while analogue clocks maintain accuracy within 0.5 seconds.

The installation of PoE clocks is cost-effective as it eliminates the need for separate power outlets for each clock. Using existing computer network infrastructure, PoE clocks streamline setup and reduce overall cabling costs. Power over Ethernet clock systems are highly scalable, accommodating anything from a single clock to several thousand. In scenarios where a powered switch is unavailable, a PoE injector can add power to the cable, ensuring continuous and reliable operation.

In summary, the integration of NTP synchronisation with PoE clocks provides precise timekeeping and seamless scalability, making them an efficient and cost-effective solution for various applications.

Dexana distribute:-

• Inova OnTime PoE Clocks including:-
  • 4-digit - single sided and double sided
  • 6-digit - single sided and double sided
  • analogue - single sided and double sided
• Krontek PoE Digital Clocks including:-
  • 6-digit - configurable for 4-digit AM/PM
  • time and date - calendar
• BRG Precision PoE Clocks including:-
  • 4-digit
  • 6-digit
  • 1.2", 2", 2.5" & 4" high numerals
  • 7" high numerals (requires 60-watt injector)
  • analogue - 12", 15" & 22" diameter.