Navigation Computer Module
The navigation computer module is a DVD drive which reads map data direct from a DVD. The navigation computer module is connected on the MOST ring and communicates with the TS to initiate navigation video and audio output. The GPS antenna is connected directly to the navigation computer module.
The navigation computer module outputs the video signals in a Gigabyte Video InterFace (GVIF) format to a navigation video interface module which converts the GVIF input to a Low-Voltage Differential Signaling (LVDS) video signal output which is then passed to the TS. Audio output is on the MOST ring to the audio amplifier. VICS FM transmission signals are received by the navigation computer module via an FM antenna and a VICS antenna amplifier. Infra-red and RF microwave VICS transmissions are also received by the VICS beacon antenna and are passed to the navigation computer module.