The MD41-244/248 is a bulkhead mounted remote transfer relay unit specifically designed for switching a CDI or HSI Indicator between two aircraft radio navigation systems. The remote switching unit is designed to be used with the companion MD41-1XXX series Annunciation Control Unit (ACU). This pertains to GPS systems where the user desires to share a common CDI or HSI between an existing NAV system and a GPS system.Version (EMDO# MD41-244) is a 14V remote mounted transfer relay.
