Comtech EF Data SDM-300A - Manual (Page 272)

SDM-300A Satellite Modem Revision 6
Open Network Operations MN/SDM300A.IOM
10–16
TRANSMIT SECTION
BW ALARM
ALARM
MONITORS
ALARM
MONITORS
RECEIVE SECTION
FORM C
FORM C
PRIMARY
SECONDARY
ALARMS
MODEM
P/O
P/O
P/O
P/O
INT
BASE
BAND
BASE
BAND
DROP
INSERT
TERDAT
TERCLK
INT
LPBK
LPBK
LPBK
MUX
MUX
LPBK
SCRAMBLER
DESCRAMBLER
PLESIOCHRONOUS
BUFFER
FRAMING/TIMING
DEFRAME/TIMING
LOGIC (MUX)
(DEMUX)
INTERFACE
INTERFACE
INTERFACE
INTERFACE
INTERFACE
SYNTHESIS
SYNTHESIS
ALARM
MONITOR
ES TO ES ASYNC
RS-232
T1/E1
T1/E1
T1/E1
T1/E1
CLOCK
CLOCK
TX DEJITTER
LOGIC
ALARMS
BW
CLK
INTERFACE
RS-232
G.703
G.703
ES TO ES ASYNC
IRD-A
IRD-B
ISD-A
ISD-B
DATA
G.703
G.703
DSD-A
DRD-A
DSD-B
DRD-B
SATELLITE CLOCK
EXTERNAL REFERENCE CLOCK
INTERNAL CLOCK
RECEIVE TERR CLOCK
Figure 10-3. D&I with Asynchronous Overhead Block Diagram