| 摘要 |
<p>Provided in an embodiment of the present invention are an E1 signal transmission line, an E1 signal sending device and a receiving device. The E1 signal transmission line comprises a sending terminal and a receiving terminal; the sending terminal and the receiving terminal respectively comprise a positive wire and a negative wire; and the negative wire of the sending terminal of the E1 signal transmission line is grounded through a capacitor. In the present invention, grounding the central tap of the transformer in the E1 signal transmission line, or the E1 signal sending device, or the E1 signal receiving device can achieve the objective of anti-interference. The grounding treatment mode in the present invention neither distinguishes a 75 ohmic resistance of coaxial cable from a 120 ohmic resistance of twisted-pair cable, nor distinguishes a 75-ohm of veneer from a 120-ohm of veneer. Therefore, the design of the veneers can be unified, the cost for manufacturing and installation is reduced, the normal transmission of signals is ensured, and error code or link disconnection is avoided.</p> |
