MIL-STD-1773
Mil-Std-1773 defines a fiber optic bus. This system is widely used for on-board command and telemetry transfer between military spacecraft components, subsystems and instruments, and within complex components themselves. 1773 systems achieve a 1 Mb/s data rate at 32 bits, but the AS 1773 implementation, now in development, has a dual rate of 1 Mb/s or 20 Mb/s. Fiber optic systems are uniquely resistant to radiation and other electro-magnetic environment effects.
