Audio Connections; Output Connections - Redback A 4595A Operating Manual

Redback® A 4595A School Lockdown Controller

3.2 AUDIO CONNECTIONS

Audio Output:
This output consists of stereo RCA sockets with an output of 0dBm into a 600Ω input. This is suitable for most PA
amplifier auxiliary inputs. The output level is adjusted via the Master volume trimpot on the rear of the unit. The output
level of the MP3 audio files is adjusted via the MP3 level trimpot on the rear of the unit.
DIP Switch Settings
SW On O
Ensure power is switched o when
1 Loop MP3 Play MP3 once adjusting DIP switches. New
24V DC 24V DC
settings will be e ective when
2-8 Not Used
IN
IN
DIP Switches
1 2 3 4 5 6 7 8
+ _
- +
1 2 3 4 5 6 7 8
CAUTION
Priority or VOX muting is only
!
functional on inputs 1-3. When
RISK OF ELECTRIC SHOCK
SW
VOX is enabled on input 1 it will
OPEN BY QUALIFIED
1
Switched 24VDC Out
PERSONNEL ONLY override all other inputs includ-
2
ing the Alert/Evac Module. VOX
Preamp Out
enabled on input 2 will override
3
Phantom Power Input 6
inputs 3-6. VOX enabled on input
4 Phantom Power Input 5
3 will override inputs 4-6.
AC Fuse Ratings
If the Alert/Evac module is tted 5
Phantom Power Input 4
it will override inputs 2-6.
Model 6
125W 250W Phantom Power Input 3
Made in Australia
7
AC Fuse 5A 7.5A Phantom Power Input 2
by Altronic
8
Phantom Power Input 1
Distributors
† Sets the Preampli er output to
Pre or Post Master.
Pty Ltd
OUTPUTS
100V
–
230V AC @ 50Hz
3.3 24V DC OUTPUT CONNECTIONS
There are seven sets of output terminals for the connection of 24V DC driven devices. E.g School Bell, warning strobes,
override relays in volume controls etc.
Each set of output terminals have a N/O (normally open), N/C (normally closed) and a ground connection. In this
configuration 24V appears between the N/O and ground terminals when this output is activated. When this output is not
active 24V appears between the N/C and ground terminals.
(NOTE: The maximum current draw per output is about 120 milliamps, so it is advisable to run external 24V DC relays
instead of trying to drive a 24V DC device directly from these outputs. See Fig 3.3 for an example of this).
Bell/Pre Bell 24V Out:
These contacts are for operating an external relay used to operate something like a school bell.
Fig 3.3 demonstrates an example of how to connect the A 4595A Lockdown Controller to the Altronics A 1708 timer to
trigger the schools Pre-Bell and Bell .
The Zone 1 closing contact of the timer is used to trigger the school Pre-bell contact and the Zone 2 closing contact is
used to trigger the school Bell. In the example shown the Bell/Pre Bell 24V Output is used to drive a 24V school Bell.
As the current draw of the Bell is more than 120mA a relay board is used to switch an external power supply. The
Altronics S 4444 24V Relay Board as shown below or the S 4455 12/24/48V Din Rail Relay box are inexpensive and easily
installed options designed for this purpose.
Standby 24V Out:
These contacts are for switched 24V outputs whenever the Standby mode is activated. These may be used to run
external systems such as strobes in unusually noisy environments or for hearing impaired students or staff. They may also
be used for the connection of override relays in remote volume controls. An override relay is necessary where
attenuators are used so that the audio is broadcast at full volume regardless of the volume setting on the individual vol-
ume control (attenuator).
10 Redback® Proudly Made In Australia
All Clear
IMPORTANT NOTE
Contacts
24V Out
power is switched back on.
Micro SD Card
(16GB Maximum)
ALERT - EVAC MODULE
DIP 5 DIP 3 DIP 1
Output Levels
Item On O SW Item On O SW Item On O
1 Input 6 Level 1V 100mV 1 Input 2 Level 1V 100mV
On O
* *
†
2 Not USed 2 Input 2 Priority On O
Pre Post
3 Not USed 3 Input 1 Priority On O
On O
4 Input 5 Level 1V 100mV 4 Input 1 Level 1V 100mV Voice Chime Alert
On O
Over
On O DIP 4 DIP 2
On O
SW Item On O SW Item On O
On O 1 1 Input 4 Level 1V 100mV
Not Used
2
On O Not Used 2 Not USed
*
3 3 Input 3 Priority On O
Not Used
4 4 Input 3 Level 1V 100mV
Not Used
Rem. Vol
Connect
to 1KΩ Pot
IMPORTANT NOTE
Ensure power is switched OFF when
70V 4 -16Ω adjusting DIP switches. New
– – settings will be e ective when
power is switched back on.
–
RESETTABLE
Link To Charge
DC FUSE
24V DC IN Backup battery
A 4595A LOCKDOWN CONTROLLER
Lock In Standby Lock Out Bell/Pre-Bell Common Emergency
24V Out 24V Out 24V Out 24V Out 24V Out 24V Out
All switched outputs limited to 120mA maximum current draw Interface 1
PA AMPLIFIER
Triggers
Preamp Out Input 6
Balanced Line Balanced Mic
& Evac EV AL CH CAN COM
2 1 2
DIP 5 3
DIP 5
1 2 3 4 5 6 7 8
PTT Power Fail
24V DC
(Contacts
(short to Switched
close on
activate) Output
power fail) L L
R R
1 2 3 4
Line
Tape Out
Interface DIP 4
DIP 4
Fig 3.2
1 2 1 2
3 3
4 4
Interface 2 To Wall Plates To Paging Consoles
MP3 audio le output
set by MP3 volume.
Output volume set by
master volume.
Input 5 Input 4 Input 3
Balanced Mic Balanced Mic Balanced Mic
1 2 1 2 1 2 1
3 3 3 3
L L L
DIP 3 DIP 2
DIP 3 DIP 2
R R R
1 2 3 4 1 2 3 4
Line Line Line
www.altronics.com.au
L
Made in Australia by
Altronic Distributors
R
Pty Ltd
www.redbackaudio.com.au
Mp3 Master Audio
Volume Volume Out
Input 2 Input 1
Balanced Mic Balanced Mic
2 1 2 1
3 3
L L
DIP 1 DIP 1
R R
1 2 3 4
Line Line