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— Chapter 1. Overview
RF-6000E Operations Manual
4
14. Storage batteries and photovoltaic modules are selected on the basis of the insolation and
temperature range at the site. The batteries are engineered to provide the required reserve
capacity across the temperature range and during periods when the output from the solar panels
is low or not available. Controllers are used with the solar panels to efficiently charge the batteries
without overcharging. Peninsula Engineering Solutions can determine the solar and battery
capacity. The location of the site should be specified when requesting assistance.
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. Optional internally mounted AC power
supplies are available without battery backup.
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-6000E 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-6000E 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. Additional SNMP equipment may be used for custom applications. Contact
Peninsula Engineering for more information.