Configuring the CBR Module 127
Figure 97 Configuring the CBR Serial Port
4Set the following port configuration parameters as desired:
SCT Clock Source—The type of input clock service configured for the port interface.
Recovered—A non-required network-wide synchronization technique used to regenerate the input service clock. Adaptive timing uses a buffer depth indicator at the receiver to adjust the line rate: the fuller the buffer, the faster the line rate; the emptier the buffer, the slower the line rate.
Internal—Configures the port interface to use the internal clock as the timing source.
SCR Clock Source—The type of output clock service configured for the port interface.
Internal—Configures the port interface to use the internal clock as the timing source.
Adaptive—A non-required network-wide synchronization technique used to regenerate the input service clock. Adaptive timing uses a buffer depth indicator at the receiver to adjust the line rate: the fuller the buffer, the faster the line rate; the emptier the buffer, the slower the line rate.
SCTE Clock Source—The Rx timing source for the serial interface: Echo Clock from DTE or DCE Transmit Clock.
SCTE Clock Phase Control—Receive timing phase control. This parameter applies only when the attached cable is DCE type cable. Depending on the speed of the device application and the clock phases, particularly those of the return clock, you may have to set SCTE Clock Phase Control to Inverted (invert the clock) to ensure correct clock and data phase.
Normal—The receive timing from the remote endpoint (node) is normal clocking.
Inverted—The receive timing from the remote endpoint (node) is inverted clocking.
56K/64K Mode—The T1 DSU/CSU mode to be emulated: 56k Mode (n x 56) or 64k Mode (n x 64).
