Comtech EF Data LCS-4 - Manual (Page 59)

LCS-4 L-Band Combiner Switch Revision 1
Front Panel Control MN/LCS4.IOM
7.2.2 LNB C
ONTROL
The following controls the LNB power supplies and LNB 10 MHz reference.
Controls Description
LNB A Power Supply The LNB A power supply switch toggles the power supply from LNB A ON and OFF.
The associated LED will show the status of the power supply. The conditions of the
LED include: OFF, RED, GREEN, and FLASHING GREEN (see Table 7-1 for various
LED conditions).
LNB B Power Supply The LNB B power supply switch toggles the power supply from LNB B ON and OFF.
The associated LED will show the status of the power supply. The conditions of the
LED include: OFF, RED, GREEN, and FLASHING GREEN (see Table 7-1 for various
LED conditions).
LNB A Reference The LNB A reference switch toggles the 10 MHz reference for LNB A ON and OFF.
The associated LED will show the status of the reference. The conditions of the LED
include: OFF, RED, and GREEN (see Table 7-1 for various LED conditions). This
provides a 10 MHz reference delivered up the coax cable to the LNB for LNB’s that
require an external reference for locking the internal synthesizer.
LNB B Reference The LNB B reference switch toggles the 10 MHz reference for LNB A ON and OFF.
The associated LED will show the status of the reference. The conditions of the LED
include: OFF, RED, and GREEN (see Table 7-1 for various LED conditions). This
provides a 10 MHz reference delivered up the coax cable to the LNB for LNB’s that
require an external reference for locking the internal synthesizer.
LNB Online The LNB ONLINE switch toggles the online unit between LNB A and LNB B. The
associated LED will show the ONLINE status of the LNB. The conditions of LED
include: OFF, RED, and GREEN (see Table 7-1 for various LED conditions).
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