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— Chapter 1. Overview
RF-7000E Operations Manual
4
15.
In areas where commercial power is available, an AC power supply can be provided. Although
one AC power supply will provide ample current to power all amplifiers, dual AC power supplies
are recommended for higher reliability. The dual AC power supply system also contains two
rectifier/chargers and two sets of standby battery to provide power during AC power failures.
Each battery is float charged while the power supply is on and has 100 Amp-hours as standard
capacity. Additional batteries can be purchased if needed.
16.
In locations where commercial power is not available and solar panel charging is impractical,
then alternative power sources such as thermal-electric generator, TEG, fuel cell or motor
generator are available. Power sources may be used in combination to create hybrid power
solutions capable of operating in very demanding applications. Primary cell batteries capable of
powering an RF-7000E repeater in excess of a year may be used. In such applications, the
battery installation should be given an environmental shelter
according to the manufactures’
recommendations. Contact Peninsula Engineering Solutions for assistance in designing the best
power supply system.
Alarms
17.
The RF-7000E repeater can be provided with an optional alarm system (RMAS) to remotely
monitor the repeater site. Conditions that are typically monitored are listed below:
Standard Telemetry:
a) A Battery Voltage
b) B Battery Voltage
c) Battery Temperature
d) Auxiliary Voltage
Standard Trip Points:
c) A and B Battery Major Alarm
d) East and West RF Output Low
e) Amplifier Alarm
f) Cabinet Door Open
g) Feedline pressure low
h) Uncommitted Points
18.
The standard alarms are typically relayed back to the terminal site through the use of a low rate
telemetry signal directly modulated on the microwave carrier in a non-interfering fashion. Alarms
are visually displayed on the standard terminal receiver unit. Alarm contact closure outputs are
available for input to standard microwave supervisory systems.
19.
Alternative alarm equipment is available that transmits alarm data subset via UHF radio telemetry
links operating in parallel to the microwave hop. This type of alarm equipment is used when
access to the terminal radio AGC is not available or compatible.
20.
Alarm closures can be converted to SNMP reporting over IP
networks using Peninsula’s
SNMP-SL10 unit.