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LPOD-R Outdoor Amplifier / Block Up Converter (BUC)
Introduction
1.4.3 Cooling System
• The PS .5 contains a single fan that is always enabled.
• The PS 1 contains one temperature-controlled fan.
• The PS 1.5 contains two temperature-controlled fans.
1.4.4 Power Supply
The LPOD-R features a power supply that is power factor corrected. It supplies
several voltages necessary for the unit to operate:
• The 10V power supply output state is controlled by circuitry within the RF
module. If the RF module does not have the –5.8V supply for any reason,
it will not allow the 10V power supply to turn on. This protects the power
transistors within the RF module from failure due to improper power
supply sequencing.
• The +24V output powers the cooling fans, is the source of power for
waveguide switching when the SSPA is used in redundant configurations,
and is dropped to +22V for LNB bias.
• The +5.8V, -5.8V, +7.8V and +13.5V outputs are used to operate the M&C
board and other overhead functions.
1.4.5 Block Up Converter (BUC) Input
The LPOD-R translates an L-Band input carrier to the desired output frequency
(C-, X-, or Ku-Band). LO frequencies are as follows:
Band
5850 to 6650 MHz
C-Band
5950 to 6700 MHz
Insat C-Band
6725 to 7025 MHz
X-Band
7900 to 8400 MHz
Ku-Band
14.00 to 14.50 GHz
Ku-Band-W
13.75 to 14.50 GHz
BUC C-, X-, Ku-Band LO Frequencies
Frequency
1–5
LO Frequency
4900 MHz
5000 MHz
5760 MHz
6950 MHz
13.050 GHz
12.800 GHz
MN-LPODR
Revision 3
Inverting
No
No
No
No
No
No
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