Difference between revisions of "FBSAR - PA interface"

Latest revision as of 10:01, 1 June 2022

The AlphaCom can be interfaced to PA Amplifiers via the FBSAR board. The amplifier is connected via the FBSAR board to an ASLT subscriber line. The PA amplifier is called simply by dialing the directory number of the FBSAR. Group calls will be distributed via the PA amplifier if the FBSAR is member of the group. It is possible to send entertainment or emergency audio from the audio program inputs out via the FBSAR, as well as alarm messages from the ASVP board.

Connections

The FBSAR board provides two independent interfaces, channel 1 and channel 2. Channel 1 has 0dBm audio output with volume control, and a relay for switching the amplifier on when audio is present. Channel 2 has 0dBm audio output, but no volume control and no relay.

There are four jumpers on the FBSAR, S1 to S4, they should all be set in the "down" position (2-3).

Channel 1

Connect the CH1 connector to a free ASLT subscriber port with a-, b-, c- and d-wires.
The 0 dBm audio signal from the FBSAR is connected to the line input of the amplifier. If the amplifier is not VOX controlled, the relay contact is connected to an input on the amplifier for switching the amplifier on when audio is present.
If the relay is used, a RCO signal is required and the FBSAR must be powered by 24VDC from the exchange.
The potentiometer VOL OUT on the FBSAR allows you to adjust the output signal level

Interface to PA amplifier via channel 1

Channel 2

Connect the CH2 connector to a free ASLT subscriber port with a-, b-, c- and d-wires.
The 0 dBm audio signal from the FBSAR is connected to the line input of the amplifier.

Interface to PA amplifier via channel 2

RCO Operation

The relay of the FBSAR is controlled by a RCO. The RCO is configured in the Event Handler. In the Users & Stations window, highlight the FBSAR in the list box, and select the button Events. Press Insert to create an event with the following parameters (here RCO 1 is used as an example):

Event for operating the RCO

Press the button "Details" to select which type of audio that should trigger the RCO (Sub Event 126 means all types of audio).

@@ Line 1: / Line 1: @@
-[[Image:FBSAR PA amplifier.png|thumb|300px|Interface to PA amplifier via the FBSAR board]]
+{{A}}
-The AlphaCom can be interfaced to '''PA Amplifier''' via the [[FBSAR]] board. The amplifier is connected to an [[ASLT]] subsriber line via the FBSAR. The PA amplifier is called simply by dialling the [[directory number]] of the FBSAR. [[Groups#Group_Call.2FAnnouncements|Group calls]] will be distributed via the PA amplifier if the FBSAR is member of the group. It is also possible to send entertainment or emergency audio from the [[Audio Program|audio program inputs]] out via the FBSAR. The audio program can be [[Audio_Program#Remote_set-up_of_Audio_Program|remotely activated]] from an intercom station.
+The AlphaCom can be interfaced to PA Amplifiers via the [[FBSAR]] board. The amplifier is connected via the FBSAR board to an [[ASLT]] subscriber line. The PA amplifier is called simply by dialing the [[directory number]] of the FBSAR. [[Groups#Group_Call.2FAnnouncements|Group calls]] will be distributed via the PA amplifier if the FBSAR is member of the group. It is possible to send entertainment or emergency audio from the [[Audio Program|audio program inputs]] out via the FBSAR, as well as [[Voice Alarm Messages|alarm messages]] from the [[ASVP]] board.
-== Connections==
+==Connections==
-[[Image:FBSAR Mobile Radio.png|thumb|300px|Interfacing to Mobil Radio using the FBSAR board]]
+The FBSAR board provides two independent interfaces, channel 1 and channel 2. Channel 1 has 0dBm audio output with volume control, and a relay for switching the amplifier on when audio is present. Channel 2 has 0dBm audio output, but no volume control and no relay.
-*The FBSAR board provides signals for audio out, audio in and a contact closure for keying of the radio transmitter. These signals are connected to the mobile radio system.
-*Towards the AlphaCom the FBSAR board is connected to a free [[ASLT]] subscriber port with a-, b-, c- and d-wires. A RCO signal is required for the relay operation. The FBSAR must be [[Powering Additional Equipment|powered by 24VDC from the exchange]].
+There are four jumpers on the FBSAR, S1 to S4, they should all be set in the "down" position (2-3).
-*There are four jumpers on the FBSAR, S1 to S4, they should all be set in the "down" position (2-3).
+===Channel 1===
-*Two potentiometers on the FBSAR allows you to adjust the input and output signal levels
+*Connect the CH1 connector to a free [[ASLT]] subscriber port with a-, b-, c- and d-wires.
+*The 0 dBm audio signal from the FBSAR is connected to the line input of the amplifier. If the amplifier is not VOX controlled, the relay contact is connected to an input on the amplifier for switching the amplifier on when audio is present.
+*If the relay is used, a RCO signal is required and the FBSAR must be [[Powering Additional Equipment|powered by 24VDC from the exchange]].
+*The potentiometer VOL OUT on the FBSAR allows you to adjust the output signal level
+[[Image:FBSAR PA amplifier.png|left|thumb|500px|Interface to PA amplifier via channel 1]]
 <br style="clear:both;" />
-==AlphaPro programming==
+===Channel 2===
-[[Image:SX Conference DefSpkr.png|thumb|Set the FBSAR as 'Default Speaker' in a Simplex Conference]]
+*Connect the CH2 connector to a free [[ASLT]] subscriber port with a-, b-, c- and d-wires.
-===Default Speaker===
+*The 0 dBm audio signal from the FBSAR is connected to the line input of the amplifier.
-The FBSAR must be set as a 'Default Speaker' in the conference. From the AlphaPro main menu select [[Simplex Conferences (AlphaPro)|the button 'Simplex Conference']], pick a free conference from the list box, and set the FBSAR as a 'Default Member'. Check the flag "Default Member is Default Speaker".
+[[Image:FBSAR PA amplifier ch2.png|left|thumb|500px|Interface to PA amplifier via channel 2]]
 <br style="clear:both;" />
-[[Image:AlphaPro SX conf event.png|thumb|Event for operating the RCO]]
-===RCO Operation===
+==RCO Operation==
-The relay of the FBSAR is controlled by a [[RCO]]. The RCO is configured in the [[Event Handler]]. In the '''Users & Stations''' window, highlight the FBSAR in the listbox, and select the button '''Events'''. Press '''Insert''' to create an event with the following parameters (here RCO 1 is used as an example):
+The relay of the FBSAR is controlled by a [[RCO]]. The RCO is configured in the [[Event Handler]]. In the '''Users & Stations''' window, highlight the FBSAR in the list box, and select the button '''Events'''. Press '''Insert''' to create an event with the following parameters (here RCO 1 is used as an example):
-:{|
+[[File:Application_A3a.png|500px|left|thumb|Event for operating the RCO]]
-|-
-|width="100pt"|'''Event Owner''':
-|width="400pt"|The FBSAR
-|-
-|'''Event type''': || [[Audio (Event Type)|1 – Audio]]
-|-
-|'''Subtype''': || 64
-|-
-|'''When change to''': || ON or OFF
-|-
-|'''Action''': || [[RCO - Set Remote Control Output|RCO 1]]
-|-
-|}
 <br style="clear:both;" />
-=== Restrictions on Talkback (optional) ===
+Press the button "Details" to select which type of audio that should trigger the RCO (Sub Event 126 means all types of audio).
-[[Image:SX Conf Talk Pri.png|thumb|Restriction on talkback is controlled by the 'SX Conf. Talk Priority' settings]]
-Each Simplex Conference has a 'Minimum Talk Priority' setting, with four levels available:
-:*Low (default)
-:*Medium
-:*High
-:*Alarm
-Each station has a similar 'SX Conf. Talk Priority' setting ('''Users & Stations''' -> '''User Preferences''' tab) which must be higher than the setting of the conference, else the station can only listen to that conference.
-All conferences are by default set to "'Minimum Talk Priority' = Low", and all stations are by default set to "Medium". I.e. all stations are allowed to do talkback.
-[[Category:Applications]]
-===Feature Description===
-The AlphaCom can distribute audio through separate loudspeakers for announcements and music distribution. This audio can be distributed via an FBSAR board. When loudspeakers without amplification are used, there must not be more than 20 such loudspeakers in one system. Such loudspeakers can only be connected via a FBSAR board.
-===Equipment List===
-* PA system / additional loudspeakers
-* Filter Board with Speech Adapter [[FBSAR]] 1009505000
-* [[PDB - Power Distribution Board|Power Distribution Board PDB 1009970100]] (This Board is only required in an E26 installation. E7 and E20 has +24VDC outputs.)
-<br/>
-One FBSAR can feed two speakers or two PA amplifiers from two subscriber lines.
-===Installation===
-* Fasten the FBSAR board onto one of the mounting rails on the distribution field.
-* Supply the board with 24 V and 0 V (GND) from the Power Distribution Board or other source of power. Use a 1-pair ordinary installation cable for this purpose; the cable is not supplied with the board.
-* Run the wires according to Figure 1.1.
-* Check the [[FBSAR#Connectors_and_Switches|switch settings]].
-<br/>
-===Additional information===
+[[Category: Public Address - Features and configuration]]
-If you use the FBSAR for the connection no programming in necessary. We do however recommend that you program the physical connection for the PA system as a substation.
+[[Category: AlphaCom Applications]]
-<br/>
-<br/>