Optical interconnect modules, or data links, can simultaneously transmit 250 Mbits/sec over each of 12 parallel channels to a distance of 100 meters over optical fibers. These data links comprise a lightwave transmitter that generates 12 light signals, a lightwave receiver, an optical fiber cable containing 12 optical fibers and relay adapters. The 12 optical parallel channels simultaneously transmit clock, control and parity signals along with 8-bit parallel data. The 3.9-cubic centimeter units consume 200 milliwatts per channel. The transmitter operates at a threshold current of 2 milliamperes. A data link requires +3.3V from a single power supply. Receiver output skew is held to ۫.0 nanosecond. The device`s package is airtight and hermetically sealed with dry nitrogen.