PHW is a manufacturer of cab signaling systems and other fail-safe electronic train control systems for the North American railroad and mass transit industries. PHW's onboard system is used by Amtrak and by other rail operators on Amtrak's Northeast Corridor (NEC), as part of Amtrak's ACSES PTC system.
The PHW PTC products will be a major expansion of Invensys Rail's North American PTC product line, Invensys says.
Invensys Rail Corp., the North American unit of Invensys Rail, manufactures signal and control systems and rail-highway grade crossing warning equipment for the North American rail industry. Invensys Rail, based in Louisville, Ky., is a division of Invensys, plc, London, an international supplier of advanced signaling and control systems for mainline, high speed rail, and mass transit systems.