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Turn on power and perform power checks
When the checklist is done and you are confident that the equipment
is installed correctly, turn on the power and perform power checks.
❑ Once the RAU has powered up and acquired the Globalstar
system, you will hear a dial tone from the telephone receiver.
❑ Use a multimeter, or the equivalent, to ensure that the voltage
at the junction box is between 10.5 and 16 VDC.
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POWER. Do not apply 12 volt power until all electrical
connections are made. Do not allow the +12 volt line to contact
the ground wire or any other metallic object. Should a short
occur, there is a risk of injury, fire, damage to the power supply,
and explosive venting of any backup battery.
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FUSE. For continued protection against the risk of fire, replace
a blown RAU fuse only with an identically rated, certified fuse.
The fuse is an IEC certified 3 A, 250 volt, 5 X 20 fast-acting
ferrule fuse contained in a fuse holder. The fuse is underneath
the front RAU access cover.
Final check
If needed, do the following:
❑ Close and lock the RAU.
❑ Close and lock the junction box.
❑ Secure the cables to the pole.
❑ Inside the building, connect the telephones to the telephone
jacks.
Connect power and test
33
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