lpDS1ClockingSource 1.3.6.1.4.1.562.2.4.1.12.7.10.1.3

This attribute defines the source of the transmit clock for the DS1 line. When local is selected, the crystal on the port generates the clocking for the line. When line is selected, the port synchronizes to the clock from the facility. When module is selected, the ports clock synchronizes to the clock provided by the oscillator on the active CP. When otherPort is selected, the port synchronizes to the port with a clocking source of line. When srtsMode is selected, the port synchronization is taken from the SRTS (Synchronous Residual Time-Stamp) bits extracted from the AAL1 cells. This option is only available for unstructured AAL1 data services when the other ports on the card have their clocking source set to module. If the NetworkSynchronization (NS) component is present the default value of this attribute will be module otherwise it will default to local. Note that 3pDS1Atm cards have one common clock source for all ports and do not support the line clock source; all three ports must have the same value, either local or module.