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SDM-300L3 Satellite Modem
Specifications
(Optional)
Breakout Panel
UB-530
User
Data
AUX 1
OC-TTL
Faults
Form C
Contacts
Remote
Port
AC Or
Optional
Power
AC Only
Power
DC
Supply
Supply
Prime
Power
Data
Data
J8
Interface
Interface
J9
AUX 1
AUX 1
AUX 1
Fault Relays
J7
J10
Alarm Relays
M&C
M&C
Remote Port
J6
Figure 14-1. Block Diagram
Opt ODU
Opt ODU
Ref Osc
Ref Osc
Supply
Supply
Tx Data
Ext Ref
Tx Clock
Encoder /
Encoder /
Modulator
Modulator
ST Clock
Tx IF
Note 1
Rx Data
Rx Clock
Demodulator
Rx IF
Demodulator
I/Q
/ Decoder
/ Decoder
Note 2
Sat Clock
AGC
Control / Status
SDM-300L3 Satellite Modem
14–2
Revision 0
MN/SDM300L3.IOM
CP2
CP1
Transmit
BUC
RF Equipment
CP3
LNB
LNB
Notes:
1) Tx IF (L-Band only) Outputs a 10 MHz
Reference, Optional ODU Voltage (FSK).
2) Rx IF Outputs LNB Voltage and 10 MHz
Reference.
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