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Rack Mount Modular System

FORAX-RM

FORAX-RM (rack-mount) connects radios to distant antennas.  FORAX-RM offers a high performance alternative to conventional radio:antenna coaxial cable connections, affording great flexibility in antenna location plus opto-isolation for all the user’s radios.  Antennas can be located up to 10 km from the radio or > 75 km by special order.

A FORAX-RM RF-over-fibre link consists of a radio interface module (RIM) and an Antenna Interface module (AIM).  At the radio site, RIMs are mounted in a 19-inch rack mount chassis and connected by short coaxial cables to each radio’s antenna port.  At the antenna site, AIMs are mounted in a 19-inch rack mount chassis and connected to each antenna with coaxial cables.  Each chassis is equipped with redundant hot-swappable AC power supplies.

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Radio Interface Unit (RIU) Antenna Interface Unit (AIU)
Half Duplex RX/TX Switching Time
Option: Full Duplex or Simplex Link		 Supports DAMA TACSAT, ELPRS, SRW, WNW, ANW2 Supports DAMA TACSAT, ELPRS, SRW, WNW, ANW2
Optical Loss Budget < 5 dBo (Higher optical loss budgets available < 5 dBo (Higher optical loss budgets available
Radio TX Power into FORAX-RM
  • 2 W (AM)
  • 5 W (FM)
  • 20 W survive

Other configurations available
AIM TX Power into Antenna
Controllable in 3 dB decrements
  • HF modules: 100 mW
  • VHF, UHF: 10W @ 50% duty cycle
  • TACSAT: 2W or 20W @ 50% duty cycle

Other TX power levels available
User Interface Link Controls (details vary with waveform):

  • TX power reduction, 3 dB steps
  • Filter band selection

Monitor LEDs:

  • Laser operation (end-to-end)
  • TX RF operation
  • AIU TX amplifier over-temp
  • Command link fault
 Monitor LEDs:

  • Power
Packaging
Option: Weather-tight enclosures with tactical fibre optic cables for field use in all environments		 Up to 10 RIMs in chassis with two hot-swappable power supplies. RIMs are quarter-rack wide and 1U tall Up to 4 AIMs in chassis with two high-power hot-swappable power supplies. AIMs are half-rack wide and 1U or 2U tall
Installation Notes User’s facility supplies AC power and fibre optic (FO) connection from RIU to AIU. Patch Cable Kits optionally available with coax cable for radio and FO patch cables User’s facility supplies AC power and fibre optic (FO) connection from RIU to AIU. Patch Cable Kits optionally available with coax cable for radio and FO patch cables
Fibre Optic Connector Type N-type female (other types available) for radio links; BNC for GPS links N-type female (other types available) for radio links; BNC for GPS links
Power Universal AC Universal AC
Operating Temperature – 10°C to + 60°C – 10°C to + 60°C
Storage Temperature – 40°C to + 80°C – 40°C to + 80°C
FORAX-RM - Rack Mount Modular System