The filming of Scrubs takes place in Los Angeles, California in the North Hollywood Medical Center (a non-operational hospital). The fictional place that Sacred Heart is located in Scrubs is known as San DiFrangeles. Which happens to be a mixture of the name San Diego, San Francisco, and Los Angeles.
JTAG is an IEEE standard (1149.1) developed in the 1980s to solve electronic boards manufacturing issues. Nowadays it finds more use as programming, debug and probing port. But first, let's see JTAG's original use, boundary testing. Boundary testing
JTAGS maximizes the use of commercial off-the-shelf (COTS) and government off-the-shelf (GOTS) equipment. The system is housed in a NBC protected standard military shelter, equipped with a standard mobilizer that permits tow speeds up to 55 mph by a 5-ton truck. It is air transportable by a C-141 or larger aircraft.