Garmin GDL 59 – Data Logger & Wi-Fi Datalink Installation Manual - Page 26

4.3.2 Remote Power On These outputs are used to power on or off GSR 56 units used in the installation. DISCRETE OUT* pins: INACTIVE: Floating (can be pulled up to externally sourced Vout in the range 0 ≤ Vout ≤ 33VDC) Leakage current in the INACTIVE state is typically ≤ 10 uA to ground ACTIVE: Vout ≤ 0.5VDC with ≤ 20 mA sink current Sink current must be externally limited to 20 mA max Pin Name IRIDIUM 1 REMOTE POWER ON* IRIDIUM 2 REMOTE POWER ON* • Denotes Active Low (Ground to activate) Connector Pin I/O P591 73 Out P591 74 Out 4.4 Serial Data 4.4.1 Avionics Ethernet HSDB The GDL 59 has two Ethernet based high speed data busses (HSDB) that are used to interface with other LRUs in the Garmin Integrated Flight Deck system. These busses meet the hardware aspects of IEEE standard 802.3 for 10/100 Base T Ethernet communications. Pin Name AVIONICS ETHERNET IN 1 A AVIONICS ETHERNET IN 1 B AVIONICS ETHERNET OUT 1 A AVIONICS ETHERNET OUT 1 B AVIONICS ETHERNET IN 2 A AVIONICS ETHERNET IN 2 B AVIONICS ETHERNET OUT 2 A AVIONICS ETHERNET OUT 2 Connector Pin I/O P591 10 In P591 30 In P591 9 Out P591 29 Out P591 4 In P591 24 In P591 3 Out P591 23 Out Page 4-4 Revision C GDL 59 Installation Manual 190-00837-00