Ku-Band BUC systems
12-50176-EN Issue 2, December 2010 Page 11 of 18
Figure 3: BUC with L-Band modem, external in-line PSU, and LNB
See Table 11 on page 17 for details of the dimensions for your BUC.
M&C
Rx from
antenna
AC mains
Tx to
antenna
L-Band Tx IF,
10 MHz Ref,
FSK M&C
L-Band Rx IF,
+15 V DC power (nominal),
10 MHz Ref *
RS232/422/485
M&C
L-Band
Modem
TRF
BUC
LNB
Data
External
in-line
BUC PSU
AC mains
L-Band Tx IF, 48 V DC,
10 MHz Ref, FSK M&C
* Certain LNB versions have internal references
and do not require an external 10 MHz reference
LAN M&C
(RBUC only)
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