The ICG DataLink-100 (DL-100) is a multi-function data gateway device which provides Bi-directional messaging over the global Iridium Satellite Network via a Short Burst Data (SBD) modem. Built to aeronautical standards, the DL-100 can be used as a Flight Deck Datalink communications system compliant with the ARINC 741 standard, to send and receive ATS and AOC data messages. The DL-100 provides connections to aircraft DMU/CMU devices via conventional ARINC 429 circuits, permitting the sending and receiving of traditional ACARS messages as well as supporting the newer CPDLC and FANS1/A Messaging requirements.) The Datalink-100 has an internal GPS option that can be used to support asset tracking, automatic or event driven position reporting or other requirements where positioning information is required. The DL-100 has multiple connection types (Ethernet, USB, Serial, etc.) that provide access for peripheral devices and can be configured to be application specific. The device is small, compact and light weight that can be installed on any size aircraft.