Definitions for "T-1"
A leased-line connection capable of carrying data at 1,544,000 bits-per-second. At maximum theoretical capacity, a T-1 line could move a megabyte in less than 10 seconds. That is still not fast enough for full-screen, full-motion video or voice. T-1 lines are commonly used to connect e LANs to the Internet.
A 1.5 Mbit/sec telephone circuit that carries 24 digital phone calls of 64 kbits each, multiplexed together on a single four-wire circuit. Commonly used to supply telephone service where multiple lines are required at the same location. The Internet has produced another application for these lines, supplying a 1.5 Mbit last mile from Internet Service Provider (ISP) to customer.
Trunk Level 1. A high-speed (1.544 megabits per second) digital telephone line with the equivalent of 24 individual 64Kbps channels, which are joined via time division multiplexing. A T-1 can be used to transmit voice or data, and many are used to provide connections to the Internet. Also known as a DS1 or Digital Signal 1.
Northern-type steam engine constructed in the late 1940's using components from class I-10sa Consolidations ( click here for more info on the Reading T-1 Northerns).
Keywords:  led, diameter, lamp, inch, package
An LED lamp package. Type T-1= 0.125 inch lamp diameter or a 3.18mm (Referred to as a 3mm) lamp diameter.
Keywords:  trunk, level, see, one
Trunk Level One. See DS-1.
slang - Most common identification for a DS-1. See DS-1 for definition.