Tycon Power Systems


Tycon 40-72VDC IN. 56V 112W 802.3bt PoE OUT. DC to DC Converter and 5G 802.3bt PoE Injector



The TP-DCDC-4856GD-BT is a 5Gbps high power DCDC converter and PoE injector with a wide voltage input range (40-72VDC), a wide operating temperature range (-40 to +70C) and a high power 802.3bt 112W output. 

The unit has dual DC inputs for primary and backup power sources. The input to output is isolated so the unit can accept -48VDC Input, making it compatible with legacy telecom systems. The green DC connector accepts wires up to 12AWG. The “FG” input is used to provide chassis or earth ground. 

The device is fan-less and uses natural air flow for cooling. It comes with DIN rail adapters to provide mounting to a standard DIN Rail commonly used in industrial installations. It can also be wall mounted.


  • 40-72VDC Input, 802.3bt 112W Output
  • Industrial Temperature Range: -40 to +70C 
  • Up to 5Gigabit Data Passthru with Surge Protection 
  • DIN Rail Mounting (Adapters Included)


  • 48VDC or -48VDC Remote Power Systems 
  • IEEE802.3bt Industry Standard Device Power from Batteries
  • PoE Lighting Applications

Dimensions (LxWxH)

  • 140 x 150 x 40 mm (5.5” x 5.9” x 1.6”)


  • 0.6kg (1.30lb)

Technical Description

  • Input Voltage +/-: 40V to 72VDC, Dual Inputs
  • Input Current:
    • 3.6A @ 40VDC IN (Full Load)
    • 2.6A @ 56VDC IN (Full Load)
    • 2.0A @ 72VDC IN (Full Load)
  • Output Voltage: IEEE802.3bt 56VDC ; Load Reg = 5%, Line Reg = 1%
  • Output Current / Max Watts: 2.0A / 112W
  • Ripple & Noise: 1%
  • Efficiency: >80% 40-72VDC Input
  • Protections: Short Circuit, Reverse Voltage, Over Voltage (59V)
  • Over Current Protection: 110 ~ 130% ; Auto Recover
  • Low Voltage Detect: (LVD) Device with stop drawing all current when input voltage drops below 33.2VDC
  • Misc Protections: Short Circuit, Reverse Voltage
  • Data PassThrough: 10/100/1000/5000Mbps ; Gigabit
  • Data Protection:
    • Pin to Pin (1-2, 3-6, 4-5, 7-8)
    • Clamp Voltage: 3.3V
    • ESD, IEC61000-4-2: +/- 30KV contact and air
    • EFT, IEC61000-4-4: 40A (5/50us)
    • Lightning, IEC61000-4-5: 15A (8/20us)
  • MTBF: 123,821 Hrs
  • Safety Standards: UL 1950 ; CSA 22.2 ; TUV EN60950-1
  • EMC Standards: FCC Class A ; EN55022 Class A
  • Connections: Removable Wire Terminal
  • Wire Size: 12AWG Max
  • LED Function:
    • Green Power LED = Valid 802.3bt Detection
    • Red STB LED = Input Power OK, No valid 802.3bt Detection
  • Mounting: Wall Mount or DIN Rail (Adapters Included)
  • Operating Temperature: -40C to +70C (-40F to 158F)
  • Humidity (RH): 5% - 90% Non-Condensing

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