Comtech EF Data SDM-300A - Manual (Page 310)

SDM-300A Satellite Modem Revision 6
Asymmetrical Loop Timing MN/SDM300A.IOM
12–4
BUF
PLL
SAT
INT
RXD
MC
EXT
TERR
TT
RT
DDS
EXT
REF
INT
RXD
RXC
Note: PLL will be bypassed when the RX data rate is set to the TX data rate. This will disable
the Asymmetrical Mode.
Figure 12-2. Receive Section of the Asymmetrical Loop Timing Block Diagram