User's Manual

G3S-800-140 Installation & Service Manual
044-05095 Rev. A 3-2 February 2001
Table 3-1 Amplifier Module RF Control and Indicators Definition
Name Function (Note: MCPA = Multicarrier Power Amplifier)
+27VDC
Indicator
Green LED. When lit, indicates that the +27 Vdc supply is greater than +21 Vdc
and less than +31 Vdc. If the +27 Vdc indicator goes out, the DC FAIL indicator
will illuminate. This indicates that the +27 Vdc voltage dropped below +21 Vdc.
+15VDC
Indicator
Green LED. When lit, indicates that the +15 Vdc supply is greater than +12 Vdc
and less than +17 Vdc. If the +15 Vdc indicator goes out, the DC FAIL indicator
will illuminate. This indicates that the +15 Vdc voltage dropped below +12 Vdc or
increased above +17 Vdc.
+5VDC
Indicator
Green LED. When lit, indicates that the +5 Vdc supply is greater than +2 Vdc and
less than +7 Vdc. If the +5 Vdc indicator goes out, the DC FAIL indicator will illu-
minate. This indicates that the +5 Vdc voltage dropped below +2 Vdc or in-
creased above +7 Vdc.
-5VDC
Indicator
Green LED. When lit, indicates that the -5 Vdc supply is greater than -7 Vdc and
less than -2 Vdc. If the -5 Vdc indicator goes out, the DC FAIL indicator will illumi-
nate. This indicates that the -5 Vdc voltage dropped below -7 Vdc or increased
above -2 Vdc.
RF ON
Switch
Three position switch:
Off (down position) - Turns off amplifier module.
On (center position) - Normal amplifier on position.
Reset (up position) - When toggled to reset position, all the red LED indicators will
turn on one at a time in sequence followed by all the green indicators one at a
time in sequence; this will also reset the fault latches. If the switch is held in the
reset position, a microcontroller reset will occur. This will be verified by the LEDs
toggling state again. The switch is spring loaded to return to the normal ON posi-
tion when released. If a fault occurs and the MCPA is disabled, the alarms can be
cleared and the MCPA enabled by this reset position. The functions of the switch
are disabled for five seconds after a power-up condition.