ASFOM FPA Series - Audio Point-to-Point Transmission

ASFOM FPA Series - Audio Point-to-Point Transmission 1ASFOM FPA Series - Audio Point-to-Point Transmission 2

The KBC FPA series is part of the ASFOM product family and provides unique, user configurable solutions for audio signals. It supports transmission of up to 128 simplex or 64 duplex audio signals over either one multimode or singlemode optical fibre. Due to the ASFOM flexibility, duplex solutions can either be symmetrical or asymmetrical with respect to the signal quantities. The plug-and-play design ensures ease of installation with no electrical or optical adjustment needed. LED indicators are provided to clearly show the operational status of the unit. Depending on system requirements, units are available in wall-mount, 1U or 2U 19” rack or 3U or 4U chassis card.

Typical System Configuration:


ASFOM FPA Series - Audio Point-to-Point Transmission schematic


  • Up to 128 simplex or 64 duplex audio signals
  • 24 bit digitally encoded audio transmission
  • Multimode and singlemode
  • Wall-mount, rack or chassis configurations
  • No fixed configuration


No. of Channels: Simplex 128 max; Duplex 64 max
Bandwidth: 10 Hz ~ 20 kHz
Input/Output Levels: +/- 9dBm, typical 0dBm
Input Impedance: 600Ω unbalanced or balanced
Output Impedance: 20kΩ unbalanced or balanced
Digital Encoding: 24 bits (AES-3)
Sampling Rate: 192 kHz
Signal to Noise Ratio: ≥80dB
Total Harmonic Distortion: ≤0.01%
Wavelength: 1310nm, 1550nm
Fibre: Multimode or Singlemode
Number of Fibres: 1
Power Input Wall-mount: +12-24 Vac/dc
Power Supply for Wall-mount: Input: 100 ~ 240 Vac; Output: +12 Vdc
Rack Module: Input: 100 ~ 240 Vac @ 2A
Chassis Card: Supplied from FR3 or FR4 PSU

Operating Temperature: -40°~+74°C / -40°~+165°F
Storage Temperature: -40°~+74°C / -40°~+165°F
Operating Humidity: 0 to 95% non-condensing
Mean Time Between Failure (MTBF): >100,000 Hours
Dimensions (Wall-mount L x W x H): 221mm x 155mm x 36mm (8.7” x 6.1” x 1.42”)
Dimensions (Rack): 1U 19”, 1U; 2U 19”, 2U
Number of 3U or 4U Chassis Card Slot: Depends on configuration
Audio: 6 Way Screw Block terminal
Fibre: ST, SC or FC (ST fitted as standard)

Wall-mount: Screw Block Terminal
Rack: IEC