TPE

TPE may refer to:

Transportation

Science

Communication

Other uses

TPE (cable system)

TPE or Trans-Pacific Express is a submarine telecommunications cable linking China, South Korea, Taiwan, Japan, and the USA. The line is a $500 million USD joint venture between 6 telecommunication companies China Telecom, China Netcom, China Unicom, Chunghwa Telecom, Korea Telecom, and Verizon Communications (AT&T and NTT joined in March 2008). Ownership of the cable is evenly split between the 6 participants. Construction of this 11,000 miles (approx. 17,700 km) line was completed in September 2008, and the Japan branch was completed in January 2010.

At the time of its construction, 5,547 gigabits per second of capacity was available across the Atlantic Ocean, but only 2,726 gigabits per second existed across the Pacific Ocean. Most links to China had to go through a hub in Japan, and access topped out at 155 Mbit/s. The TPE is more than 60 times the overall capacity of the existing cable directly linking the U.S. and China, and thus its construction was a major enhancement to the cable systems between the two nations. It is the first next-generation undersea optical cable system directly linking the U.S. and China, and was also the first major undersea system to land on the U.S. West Coast in more than seven years. Initially, the Trans-Pacific Express cable was configured to handle traffic at 1.28 terabits per second (Tbit/s), but the system has a design capacity of up to 5.12 Tbit/s. Customers can also book individual connections running at 10 Gbit/s.

Garrett TPE331

The Garrett AiResearch TPE331 is a turboprop engine originally designed and manufactured by Garrett AiResearch, and produced by Honeywell Aerospace since 1999 after that company acquired Garrett. The TPE331 family includes 18 models and 106 configurations; the engines range from 575 to 1650 shaft horsepower. The military version is designated the T76.

Design and development

The TPE331 originated in 1961 as a gas turbine (the "331") to power helicopters. It first went into production in 1963. More than 700 had been shipped by the end of 1973. It was designed to be both a turboshaft (TSE331) and a turboprop (TPE331), but the turboshaft version never went into production; however, over 14,000 TPE331s have been sold since the first engine was produced in 1963, installed on the Aero Commander in 1964 and put into production on the Aero Commander Turbo Commander in June 1965.

Applications