Point2point DC Fibre Optic Links

Point2point DC Fibre Optic Links

Description

PPM’s point2point DC analogue fibre optic links operate from DC to up to 2.5MHz, 20MHz or 40MHz.

  • High performance analogue instrumentation system.
  • Solves the problem of electrical interference
  • High voltage isolation in signal monitoring and distribution.

Key Features
  • Re-establish link automatically after an optical break
  • Up to 40MHz bandwidth
  • Choice of 19″ rack 10 channel or 3 channel systems or standalone single channel system, no other solution offer this flexibility
  • Optional remote battery switch, shielded or unshielded
  • Flat band pass response
  • Singlemode or Multimode fibre options
  • Up to 36 hours battery life
Key Benefits
  • Immunity to electromagnetic fields so the signal is not corrupted by radiated or conducted interference
  • It is non-conductive, thus providing an intrinsically safe transmission path for the monitoring of equipment at hazardous voltages
  • It uses highly flexible and small diameter cable
  • Elimination of ground loops

DC Fibre Optic Links Specifications

Specifications quoted at 25°.

Rows occupied by a single entry refer to all links.
DC Coupled Links2.5 MHz20 MHz40 MHz
Pass band0Hz-2.5MHz0Hz-20MHz0Hz-40MHz
Gain Flatness+/-0.5dB to 1MHz+/-0.25dB to 2MHz+/-0.25dB to 10MHz
+/-1dB to 2MHz+/-1dB to 15MHz+/-1dB to 30MHz
+/-3dB to 2.5MHz+/-3dB to 20MHz+/-3dB to 40MHz
Phase flatness<±10°
Rise time<135ns<20.5ns<10.3ns
Output Noise... (Full Band, all values are Vrms)
...For +/-2V output0.3mV (0.02% FS)0.8mV (0.06% FS)0.7mV (0.05% FS)
...For +/-10V output1.5mV (0.02% FS)N/AN/A
Signal latency (1M fibre)350ns280ns210ns
Transmitter input impedance1MΩ / 25pF typ.
Receiver output impedance50Ω @ ±2V standard
300Ω @ ±10V optional (2.5MHz limited)
Output DC offset (worst case over whole output range)<0.3% of FSD<0.3% of FSD<0.3% of FSD
Non-linearity0.1% of FSD0.1% of FSD0.06% of FSD
Operating temperature-20 to +60°C
Optical path length (singlemode)<1m to 10km
Electrical ConnectorsBNC 50Ω
Optical ConnectorsSinglemode: FC/APC
Current Consumption @ 12V: TX<240mA<240mA<210mA
Current Consumption @ 12V: RX<350mA<315mA<280mA
Front Panel Indication: Transmitter ModulePower supply status & ADC overflow
Front Panel Indication: Receiver ModulePower supply status & Link Lock status

Datasheets

DC fibre optic link datasheet

DC fibre optic link datasheet

Point2point RF over fibre links accessories datasheet

Point2point RF over fibre links accessories datasheet