Broadcast Electronics AM-2.5E, User Manual

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2-72. Remote Enabled Indications. The remote enabled indicator provides a signal to indicate
the status of transmitter remote control operations. The remote enabled indicator is lo
cated at J2-11. The indicator will go LOW to indicate when remote control operations are
enabled.
2-73. Maintenance Indications. The maintenance indicator provides a signal to indicate when
a transmitter power supply or an RF power module is removed from the transmitter for
maintenance. The maintenance indicator is located at J2-12. The indicator will go LOW
(0 volts dc) to indicate when a power supply is removed for maintenance.
2-74. Lightning Indications. The lightning indicator provides a signal to indicate when a greater
than: 1) 1500 volt potential is present at the output for AM-2.5E models or 2) 2100 volt
potential is present at the output for AM-5E models. The lightning indicator is located at
J2-13. The indicator will go LOW (0 volts dc) to indicate when a lightning potential is pre
sent at the transmitter output.
2-75. 1.2 : 1 VSWR Indications. The 1.2 : 1 VSWR indicator provides a signal to indicate when a
greater than 1.2 : 1 VSWR condition is present at the transmitter output. The 1.2 : 1 indi
cator is located at J2-14. The indicator will go LOW (0 volts dc) to indicate when a 1.2 : 1
VSWR condition is present at the transmitter output.
2-76. Exciter/PWR Supply/PWR Module Fault Indications. The exciter, power supply, and power
module fault indicators provide signals to indicate when an exciter, power supply, or a
power module fault has occurred. The exciter, power supply, and power module fault indi
cators are located at J2-15 through J2-17. The indicators will go LOW (0 volts dc) to
indicate when an exciter, power supply, or a power module fault has occurred.
2-77. RFL PWR High Indications. The reflected power high indicator provides a signal to indicate
when: 1) 100 watts of reflected power is present at the transmitter output for AM-2.5E
models or 2) 200 watts of reflected power is present at the transmitter output for AM-5E
models. The high reflected power indicator is located at J2-18. The indicator will go LOW
(0 volts dc) to indicate when a reflected power high condition is present at the transmitter
output.
2-78. RFL PWR Emergency Indications. The reflected power emergency indicator provides a sig
nal to indicate when greater than: 1) 500 watts of reflected power is present at the output
of the AM-2.5E transmitter or 2) 1000 watts of reflected power is present at the output of
the AM-5E transmitter. The reflected power emergency indicator is located at J2-19. The
indicator will go LOW (0 volts dc) to indicate when a reflected power emergency condition
is present at the transmitter output.
2-79. Overtemp Indications. The overtemp indicator provides a signal to indicate when the
transmitter temperature is greater than 70 ° C. The overtemp indicator is located at J2-20.
The indicator will go LOW (0 volts dc) to indicate when the transmitter temperature is
greater than 70
°
C.
2-80. Foldback Indications. The transmitter is designed to automatically reduce power when
one of the following fault condition occurs: 1) high reflected power, 2) high forward power,
3) high temperature, or 4) detection of a high voltage by the lightning circuit. The foldback
indicator is located at J2-21. The indicator will go LOW (0 volts dc) to indicate when the
transmitter is in a foldback condition.
2-81. Alarm Status Indications. The alarm status provides a signal to indicate when a fault or
foldback condition occurs. The alarm status indicator is located at J2-22. The indicator
will go LOW (0 volts dc) to indicate when the transmitter is in a fault or foldback condition.
2-82. Alarm Reset Control. The alarm reset control is designed to reset the fault detection cir
cuitry. The alarm reset control is located at J2-23. A +5 to +15 volt dc signal is required to
activate the function.