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PSR 0831

8 Wire Pairs ­Downconverter

for the Remote Powering System RPS 1600




The PSR 0831 is a highly efficient, IP20-protected remote counterpart for the PSC 1600 / PSC 08xx converting the incoming voltage to 48 V DC for powering of active network components. The PSR 0831 delivers up to 120 W via eight feeding lines with a power efficiency of up to 92%. To convert the full power of one PSC 1600 (240 W) / PSC 08xx (120 W) at the remote site, two / one PSR 0831 are / is required. When cascading of up to 4 x PSR 0831 directly the output power is up to 480 W. The use of six PSC 1600 and cascading of twelve PSR 0831 (when using a power rail) delivers up to 1,440 W to the remote site. The PSR 0831 units can be mounted by using additional mounting brackets and mounting rails into a 19” or ETSI rack system.


  • Power output: ≤ 120 W (8wp)
  • Cascading of up to 4 x PSR 0831 for output power of up to 480 W
  • Combining of up to 12 x PSR 0831 delivers up to 30 A / 1,440 W output
  • Up to 15 W per line @ 5 km range*
  • Nominal output voltage: 48 V DC
  • Nominal output current: 2.5 A DC (electronically regulated)
  • RFT-C feeding voltage: 140 – 380 V DC
  • RFT-C feeding current: < 60 mA (per each power sink)
  • Up to 92% power efficiency


System Integration

  • Required components at central office: PSC 1600 / PSC 08xx
  • Small footprint (W x D x H): 222 mm x 235 mm x 45 mm
  • IP20 ingress protection
  • Surge protection acc. to ITU-T K.45
  • Provided for rack mounting


*assumed parameters: diameter of copper wire = 0.4 mm; wire resistance <1,500 Ω


FTTC – Feeding of active components in street cabinets from central office site, e.g. micro-DSLAMs, VDSL2-ONU

FTTB/H – Feeding of active components in buildings from central offices or street cabinets, e.g. micro-DSLAMs, ONU (Eth or VDSL out), fibre switches

Mobile nodes – Providing remote power for small cell-nodes for 4G / 5G networks (eNodeB)

Power resilience for critical telecommunication applications, e.g. emergency lines, monitoring systems, CCTV

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