GPS external clock interface on the SCBE

You can configure the Enhanced SCB-SCBE-external clock interface to a GPS timing source, which enables you to select a GPS external source as the chassis clock source. You can also configure the external clock interface to output either the selected chassis clock source or a recovered line clock source with GPS timing signals of 1 MHz, 5 MHz, or 10 MHz with 1 pulse per second (PPS).