1
Kyran B Kemper, Robert W Vetter Jr: Mechanized loop testing using a local metallic access port. AT&T Company, AT&T Bell Laboratories, Patrick E Roberts, Robert O Nimtz, February 3, 1987: US04641299 (12 worldwide citation)

In a telephone local exchange system where loops are connected to a remote switch which in turn homes on a host switch via a carrier system and where the distance between the ends of the loops and the host switch exceeds a threshold, the loops may be tested by locating the test apparatus remotely fr ...


2
Kemper Kyran B, Vetter Robert W Jr: Test en boucle mecanise utilisant une porte metallique locale, Mechanized loop testing using a local metallic access port. American Telephone And Telegraph Company, KIRBY EADES GALE BAKER, May 24, 1988: CA1237208

- 20 - MECHANIZED LOOP TESTING USINGA LOCAL METALLIC ACCESS PORT Abstract In a telephone loop system where loops areconnected to a remote switch which in turn homes on a hostswitch via a carrier system and where the distance betweenthe ends of the loops and the host switch exceeds apredetermined dis ...