Synchronous serial interface
Synchronous serial interfaces provide serial communication channels for synchronous data transmission. The interface type name is Serial.
A synchronous serial interface operates in DCE or DTE mode. Two directly connected synchronous serial interfaces must operate in different modes.
In DCE mode, the interface provides timing for synchronization and sets the baud rate.
In DTE mode, the interface accepts the timing signal and baud rate from the DCE.
The synchronous serial interfaces on the device typically operate as DTE.
You can connect a synchronous interface to various types of cables, including V.24, V.35, and X.21. Typically, the device can automatically recognize the cable type and select electrical properties.
The synchronous serial interface supports multiple data link layer protocols, including PPP, HDLC, and Frame Relay. The interface supports network layer protocols, such as IP.