| 摘要 |
<p>The present invention relates to a coupling arrangement for phantom-mode transmission over a wired loop plant. In accordance with an embodiment of the invention, the coupling arrangement comprises adders (ˆ‘1A, ˆ‘2A, ˆ‘1B, ˆ‘2B) for adding a common-mode signal (+VC, -VC) to a differential-mode signal ((+VA, -VA), (+VB, -VB)), and amplification units (AMP2A, AMP2B) for individually and evenly amplifying input signals present on their input terminals, thereby yielding amplified common-and-differential-mode signals ((+VA'+VC', -VA'+VC'), (+VB'-VC', -VB'-VC')), and coupling units (COUP2A, COUP2B) with capacitive coupling (C3A, C4A, C3B, C4B) for passing the amplified common-and-differential-mode signals towards a wire pair (L1, L2). The present invention also relates to a line termination unit or an access node including a coupling arrangement according to the invention.</p> |
