公开(公告)号：US20150281806A1

公开(公告)日：2015-10-01

申请号：US14481668

申请日：2014-09-09

Applicant: HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： CHIH-CHENG HUANG

IPC: H04Q3/00 ,  H04L12/931

CPC classification number: H04Q3/0008 ,  H04Q2213/13096 ,  H04Q2213/13305 ,  H04Q2213/1332

Abstract: A relay switching circuit to route outgoing telephone calls between a VoIP and a landline and with a surge voltage protection includes a first relay, a second relay, a first control circuit, and a second control circuit. The first relay connects with a foreign exchange station (FXS) port and an FXS circuit to control a connection between the FXS port and the FXS circuit. The second relay connects with the first relay and a foreign exchange office (FXO) port to control a connection between the first relay and the FXO port. The first control circuit connects with a controller to control the first relay. The second control circuit connects with the controller to control the second relay.

Abstract translation: 用于在VoIP和陆线之间路由输出电话呼叫和浪涌电压保护的继电器切换电路包括第一继电器，第二继电器，第一控制电路和第二控制电路。 第一个继电器与外汇站（FXS）端口和FXS电路连接，以控制FXS端口和FXS电路之间的连接。 第二个继电器与第一个继电器和一个外汇局（FXO）端口连接，以控制第一个继电器和FXO端口之间的连接。 第一控制电路与控制器连接以控制第一继电器。 第二控制电路与控制器连接以控制第二继电器。