Federal!Signal!UltraVoice!Remote!Interface!(UVRI)!
Installation,!Operation,!and!Service!Manual!
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OPTIONS!
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! 55!
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RADIO!Connector,!8!pin!MOD!jackb!
1.!Receive!Audio,!300mV!9!10V
p9p
!
2.!Transmit!Audio,!50mV!9!3V
p9p
!
3.!Carrier!Detect!9!active!low!
4.!PTT!
5.!+8!VDC!
6.!GND!
7.!+8!VDC!
8.!GND!
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This! voltage! source! must! not! be! used! for! radios,! which! draw! more! than! 1.5! Amps! of!
current!in!transmit.!Use!both!grounds!and!both!+8!VDC!connections!for!current!handling.!
If! a! higher! current! output! is!required,!a! 24! VDC! –! 12! VDC! voltage! converter! must! be!
purchased.!This!converter!is!provided!with!the!UVRI!series!models.!Do!not!use!one!of!
the!12!VDC!batteries!to!run!the!radio!equipment.!
!
1.! AUDIO!–!The!ULTRAVOICE!controller!Receive!Audio!Input!should!be!connected!to!
the!de9emphasized!Audio!Output!of!the!radio.!Use!shielded!audio!grade!cable!and!
keep!wire!runs!as!short!as!possible.!The!Receive!Audio!level!can!vary!from!300!mV!
–!3V
p9p!
unclipped.!
!
2.! The!Transmit!Audio!Output!is!adjustable!from!50!mV!9!3V
p9p
.!
!
3.! C.D.!9!The!carrier!detect!signal!from!the!radio!must!pull!to!ground!when!active.!The!
radio! carrier! detect! signal! is!useful! for! controlling! live! PA.! When! the! C.D.! signal! is!
removed!from!the!controller!for!over!5!seconds,!the!controller!will!automatically!cancel!
the! P.A.! function! eliminating! the! need! to! broadcast! the! cancel! tones! over! the!
speakers.!
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4.! PTT!–!The!PTT!output!pulls!to!ground!when!active!to!key!the!radio.!
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5.! RX!and!TX!Audio!–!Adjust!the!RX!and!TX!Audio!levels!as!described!in!Section!6.!
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10.4! Model!UVRIMIP!
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The!UVRI9IP!combines!the!characteristics!of!a!UVRI!with!Serial!to!Ethernet!conversion!
capabilities.! This! allows! serial! devices! to! communicate! over! an! Ethernet! network! and!
provides!audio!decoding!of!digitized!audio!sent!over!the!network.!
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The!converter!is!configured!with!its!own!fixed!IP!address!and!port!number.!When!packets!
of!data!are!received!over!the!Ethernet!port!that!are!addressed!to!the!board’s!IP!and!port!
number,!they!are!converted!to!serial!data!and!sent!out!over!the!serial!port.!Likewise,!any!
data!coming!into!the!serial!port!is!converted!to!TCP/IP!data!packets!and!sent!out!over!the!