| 摘要 |
<p>A system and method for accessing a number of communication lines by one or more testing devices are disclosed. Each of the communications lines is coupled through the system and includes a first termination at a first telecommunications termination site and a second termination at a second telecommunications termination site. The system includes a number of line access devices, each of which is coupled to at least one of the communication lines terminating at the first telecommunications termination site and at least one of the communication lines terminating at the second telecommunications termination site. One or more monitoring busses are defined by a number of relays, one or more of which is coupled to one of the line access devices. A test device interface, which is selectively coupled to the bus, provides bi-directional connectivity between the selected communication line and a selected testing device coupled thereto. An activated one or more of the relays couples a selected one of the communication lines to a selected one of the testing devices via the test device interface. A single or multiple patch capability provides for manually establishing cross-connections between selected communication lines and for redirecting communication line connections to selected testing devices. The test access system and method accomodates various high speed digital transmission line protocols. The transmission lines coupled through the system may comprise high speed digital transmission lines characterized by transmission rates on the order of tens, hundreds or thousands of megabits per second (Mbps).</p> |
