Interlock Armored Optical Fiber Cables provide an extremely well protected cable package ideally suited for harsh environments. The armor is available in aluminum and comes with OFCP (plenum) rating. This design offers the system designer a product that can be installed in areas where added mechanical protection and security are required. The exible interlock armored cable design is also popular for retrot applications and eliminates the need to install rigid conduit while still meeting building code guidelines.