
Overview
The family of Fiber Optic Modems (FOM) provide
electrical to optical c o n v e r s i o n o f electronic
communication and data signals for transmission
using tactical fi ber optic cable assemblies. The FOMs
simultaneously receive incoming optical signals and
converts them back to the original electronic signal
allowing for full duplex transmission.
Together with tactical fiber optic cables, the FOMs
provide a rugged, secure and easily deployable
optical link. The FOM is available in both single channel
and multi-channel confi gurations and can be mounted
on the signal entry panel (SEP) of tactical shelters
in 19 inch racks or placed on the ground (multi-channel
versions only).
Benefi ts of Optical Fiber over Coaxial Implementation
• Lighter weight and smaller size for much quicker deployment
• Higher bandwidth for increased throughput
• Lower loss for long distance repeaterless communication up to 16 kilometers
• Better quality - safe from electromagnetic interference from any source
• More secure - no electromagnetic signature
• Less expensive
All of the above enhance defense mobility and rapid deployment capabilities.
Repeaters
Coaxial
Cable
Driver
Modem
• 16-Kilometer Link
Weighs 2800 kgs
• 16-Kilometer Link
Requires 37 Repeaters
• Five Links Require
Five 2.5 Ton Trucks
Shelter Equipment
16 km
FOM
FOM
Optical Fiber Implementation (NEW WAY)
• 16-Kilometer Link
Weighs 640 kgs
TFOCA I, TFOCA II or Expanded Beam
16 km
• Five Links Require a Single
2.5 Ton Truck
Coax Implementation (OLD WAY)
Coaxial
Cable
Driver
Modem
Repeaters
• 16-Kilometer Link is Repeaterless
• Eliminates Requirement for Coax Modems
Shelter Equipment
Shelter Equipment
Shelter Equipment
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