NGC Signal Connectors TE Connectivity's (TE) DEUTSCH NGC Signal Connectors offer a compact and cost-effective solution for rolling stock applications, such as air conditioning or lighting systems. These composite connectors are equipped with a safe locking system and meet railway fire and smoke requirement standards. This series has an IP66 rating when mated. The NGC series features a quick positive locking system and high-performance contacts with gold or silver plating. TE Connectivity / DEUTSCH NGC Signal Connectors are suitable for use in air conditioning, lights, doors, and windshield wipers.