Federal Signal Corporation UltraVoice, Installation, Operation And Service Manual

Page: 22 / 60

Federal!Signal!UltraVoice!Remote!Interface!(UVRI)!
Installation,!Operation,!and!Service!Manual!
SPECIFICATIONS!
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22!
7!! Microcontroller!Reset
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Serial!Port!9!Upper! ! ! 8!Pin!Auxiliary!Serial!Port:!
3!
TX!Data!!!!
4!! RX!Data!!!!
5!! Ground!!!
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I
2
C! ! ! ! 5!volts!peak9t/9!1!volt!input!! ! !
! ! ! ! ! 5!volts!DC!+/9!.2!volts!250!mA!!! ! ! !
! ! ! ! ! Ground!250!mA!maximum!sink! !
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4.6.3! Manual!Activation!Switches:! !
! ! ! ! ! QTY!8, ! activate!with!a!hold!time!>0.50!seconds!
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4.6.4! Indicators:!
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RXD! ! ! ! Receive!Serial!Data!&!receipt!of!! ! ! !
! ! ! ! ! radio!channel!modulation!
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TXD! ! ! ! Transmit!Serial!Data!&!DTMF!&!Digital!
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AUDIO!A! ! ! Audio!present!on!Channel!A!
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AUDIO!B! ! ! Audio!present!on!Channel!B!!
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ARM! ! ! ! Unit!Armed!indicator!
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PA! ! ! ! Public!Address!mode!indicator!
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CPU! ! ! ! Microprocessor!Heartbeat!
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CARRIER! ! ! RF!Carrier!indicator!on!w/carrier!present!
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RECEIVE!LEVEL! ! 3!stage!LED!bar!graph!
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