The synchronous serial port on a router is configured as DTE or DCE depending on the attached cable, which is ordered as either DTE or DCE to match the router configuration.

• 在一台路由器上的同步串列埠被组态成资料终端设备或资料通讯设备，端看连接的缆线，换句话说；资料终端设备或资料通讯设备的顺序必须符合路由器的组态。