MARC70 Interface Modules provide the avionics installer with simple, PMA Approved installation solutions. SANDIA Aerospace Modules are ideal where reliability is a must such as in Navigation System, GPWS, TAWS and RVSM installations. Each module can be installed in either a SRU-1, SRU-5 or SRU-10 enclosure, maximizing installation flexibility. These interface modules can be combined together in a single enclosure to provide a complete installation solution. Complete technical information is available on these interface modules in the MARC 70 Installation Manual.