 Although the majority of implementation use fiber, low-speed implementations of ARINC 818 (1.0625Gbit/s and 2.125Gbit/s) sometimes use copper (twinax or STP).The most commonly, either 850 nm MM fiber (<500m) or 1310 nm SM fiber (up to 10 km) is used, however, in Russia and India, 1310 multi-mode fiber has also been used.ARINC 818 lends itself to applications that require few conductors (slip rings, turrets), low weight (aerospace), EMI resistance, or long distance transmission (aerospace, ships).