It is the exchange box. Your distance would be count from this box...

This post has been edited by poh880: Jan 9 2010, 02:36 PM

Of cos, the closer the better your line will be (assuming your line in your house is in optimum condition)
DSLAM & IPDSLAM is the one sync your DSL line and assign you an IP from a group of IP ranges.
Exchange box is the place where there put an outside branch's DSLAM equipments. It will have lot of port inside which connect your telephone line.
Remote mean outside the TM exchange branch (building with TM logo).

EDIT: Information given has been corrected

This post has been edited by poh880: Jan 9 2010, 03:17 PM