Esternet port branch protective switching device for digital synchronizing system equipment

• Main Author: LINGGUANG KONG
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2005
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The utility model discloses an eternet port branch protective switching device for digital synchronizing system equipment. The port is provided with standby processing boards; all the outlet boards of the port are connected with processing boards via working bus lines; a PHY chip is positioned on the outlet board of the port; the outlet boards are connected with the standby processing boards via point-to-point branch protective switching bus lines. The utility model is provided with the point-to-point TPS lines between the ethernet port outlet boards of the SDH device and the ethernet processing boards, i.e., each of the outlet boards is respectively connected with the standby processing board alone, and thus no matter which processing board fails, the outlet board is connected with the standby processing board conveniently and directly. Since the PHY chip is positioned on the processing board, the design of the outlet board is greatly simplified, making the outlet board as a passive single board, and the outlet board is durable, better realizing the TPS function. 本实用新型公开了一种数字同步体系设备的以太网端口支路保护倒换装置，所述端口设置有备用处理板，所述端口的所有出线板和处理板之间通过工作总线相连，PHY芯片置于所述端口的出线板上，所有出线板和备用处理板之间通过点到点的支路保护倒换总线相连。本实用新型在SDH设备的以太网端口出线板与以太网处理板之间设置点到点的TPS线，即每个出线板均分别单独与备用处理板连接，这样，无论哪个处理板出现了问题，均可方便地直接与备用处理板连接；将PHY芯片置于处理板上，可以大大简化出线板的设计，这样出线板也就可以是无源单板了，出线板就不容易坏，从而能更好的实现TPS功能。