Comtech EF Data LPOD-R PS .5, Инструкция по установке и эксплуатации

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LPOD-R Outdoor Amplifier / Block Up Converter (BUC) MN-LPODR
Introduction Revision 3
1–5
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:
BUC C-, X-, Ku-Band LO Frequencies
Band Frequency LO Frequency Inverting
C-Band
5850 to 6650 MHz 4900 MHz No
5950 to 6700 MHz 5000 MHz No
Insat C-Band 6725 to 7025 MHz 5760 MHz No
X-Band 7900 to 8400 MHz 6950 MHz No
Ku-Band 14.00 to 14.50 GHz 13.050 GHz No
Ku-Band-W 13.75 to 14.50 GHz 12.800 GHz No