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.

Point2point uses direct intensity modulation to transfer signals between the electrical and optical domain.  No digitization or modulation takes place, therefore the link is transparent to almost any data format or signal type.

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 cases-housings datasheet

Point2point cases-housings datasheet

Point2point power sleeve datasheet

Point2point power sleeve datasheet

Point2point battery switch datasheet

Point2point battery switch datasheet