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FXO FXS Audio Overhead Paging Adapter | FXI-1A Telephone Paging Interface Module

FXO FXS Audio Overhead Paging Adapter | FXI-1A Telephone Paging Interface Module


Hey folks! Andrew here with Viking
Electronics. Have you been looking for a way to integrate different paging
sources with your paging system? Then get excited because that’s
what this video is all about! Installers who work often with paging systems tell me they always
have an FXI-1A on hand. The FXI-1A smart paging interface by Viking
Electronics will turn any analogue port into a 600 Ohm line level audio signal
and provide a contact closure. In this video I’m going to take you through the
FXI-1A’s three paging modes, common wearing configurations and product
details. Viking regularly puts out this type of
content so please click Subscribe if you haven’t already and stay tuned till the
end of this video because I’m going to take you through connecting a voice over
IP paging source to an analog paging system. Looking under the hood of the
FXI-1A you’ll see it in three pots in the upper left corner: master volume
control, page length timeout, and silence time out. There are two LEDs on the
FXI-1A circuit board: this one will light red to indicate the FXI-1A is
powered and this one lights up blue when the FXI-1A is in use. Along the right
side of the circuit board is the screw terminal block with connections for
night-bell, background music input, form C real light contact normally closed,
common, and normally open, 600 Ohm audio output and the audio input which is
where the FXI-1A connects to the paging source. Below that are 5 dip
switches: enable operation on a page port, enable VOX mode and VOX sensitivity
(which are all used in selecting the FXI-1A’s different modes) enable busy
detect and enable pre-page alert tone. This big switch
here is the Talk–Battery switch, which turns Talk-Battery on and off. Last but
not least this is the 12 volt DC power input for the included power supply. The
FXI-1A has 3 paging modes based on the type of port the paging source
provides: FXS, FXO and VOX. FXS mode is for ring trip paging which means a page
is initiated by placing a phone call. In FXS mode the FXI-1A will detect the
incoming ring voltage, seize the line and convert the incoming audio to a 600
Ohm signal which is sent to the paging system. To put the FXI-1A into FXS
mode switch the talk battery switch to FXS and make sure dip switches 4 & 5
are off. Connect the station port or extension depends 1 & 2 and connect pins
3 & 4 to the amplifiers 600 Ohm input. In FXS mode the FXI-1A is powered by
the Talk-Battery provided by the incoming phone line so the included
power supply is only required the ring voltage is a low. If the FXS port does
not provide a CPC or a busy signal the FXI-1A can appear to lockup
preventing use of the paging system. You can avoid this by enabling the silence
timeout and setting the value between 2.5 to 10 seconds or by enabling the
page length timeout and setting the length between 5 seconds to 1 minute. If
you plan on using a POTS line or similar type service with direct access
to the public network as your paging source I would strongly suggest you use
the RAD-1A instead of the FXI-1A because the RAD-1A has a paging
access code and the FXI-1A does not. The paging access code prevents
unauthorized access to your paging system by robocalls
or people who misdial. FXO mode is used in applications when the paging
source is a trunk port like a single or multi-line analog phone
or a phone system with an available line port. The FXI-1A detects when the
paging source comes off hook then generates 30 volts DC Talk-Battery to
connect the paging source to the paging system. If you intend it to page in FXO
mode toggle the Talk-Battery switch to the FXO position and verify that dip
switches 4 & 5 are on. Then connect the unused trunk port to pins 1 & 2.
Pins 3 & 4 connect to the amplifier 600 Ohm audio input. FXO mode
requires the use of the included 12 volt DC power adapter this “FXS, FXO, extension,
unused trunk port” terminology is confusing to you we did a video about
the difference between FXS and FXO ports and I would recommend watching
that video after this is over and then coming back and reviewing this content.
You’re gonna have much more confidence using the FXI-1A after a solid
understanding of the difference between FXS and FXO ports. The last paging mode
the FXI-1A offers is VOX mode which is used when the paging source is
providing 600 Ohm audio like a phone systems page port, a digital mass
notification system or certain microphones. The FXI-1A detects the
incoming audio signal and sends that signal to the paging system. Switch the
Talk-Battery switch to FXS mode and dip switches 4 & 5 to on to enable VOX
mode and page port operation. Connect the 600 Ohm audio source to the FXI-1A’s
pins 1 & 2 and the amplifiers 600 Ohm audio input to pins 3 & 4.
The external 12 volt DC power supply is required in this mode as well. In all
three of these modes the FXI-1A’s form C relay contact on pins 5, 6 & 7 will change state during a voice page. In applications where an
amplifier requires a page trigger the normally open pin 5 and the common
pin 6 on the FXI-1A can be used to trigger the amplifier during a voice
page. If the paging application includes background music the FXI-1A’s relay
can be used to mute music during a voice page and unmute it after. Connect your
paging source to pins 1 & 2 and connect pins 3 & 6 to the amplifiers 600 Ohm
input. Using a short length of wire connect audio output pin 4 to normally
open pin 5. Connect the background music sources 600 Ohm audio output to pins 7 & 8 on the FXI-1A. When a voice page is initiated normally closed pin 7
will open muting the background music and normally open pin 5 will close
allowing the voice page to flow through to the amplifier. After the page the
relay returns to its normal state and the background music resumes. So what do
you do when you have an analog paging system and a voice over IP paging source?
The solution is to configure a voice over IP extension and connect an analog
terminal adapter or an analog gateway the ATA or gateway can have either FXS
or FXO ports because the FXI-1A is equipped to handle both types. That is
one of the reasons paging system installers turn to the FXI-1A. *Record Scratching* So as I
was editing this part of the video it seemed really fitting that I should
mention to you Viking makes model PA-IP which is a paging device that will
interface a VoIP SIP paging source directly to a analog paging
system. And you can do either Unicast or end point paging as well as Multicast
paging. I’ll put a link to that in the description below definitely consider
that as an option if you do have an IP paging source. Alright back to the video! If you’re looking for more information and resources on IP paging, analog paging
and other paging equipment the Viking Electronics YouTube channel is a great
resource for you and I definitely suggest you subscribe if you have not.
I’m Andrew, I really hope you enjoyed this video. Thanks for watching and I’ll see
you next time!

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