Dc Output Connections; Remote Wall Plates; A 2069 Remote Plate - Redback A 4505 Operating Manual

Redback® A 4505 Lockdown Timer
2.11 24V OUTPUT CONNECTIONS
These contacts can be used for connection of override relays in remote volume controls, or strobes for unusually noisy en-
vironments. An override relay is necessary where attenuators are used so that the Lockdown tone, Fire tone or message is
broadcast at full volume regardless of the volume setting on the individual volume control (attenuator).
Lockdown/Fire 24V Out:
These contacts are for switched 24V outputs whenever the Lockdown or Fire tones are activated. These may be used to run
external systems such as strobes in unusually noisy environments, or override relays in remote volume controls.
When this output becomes active, 24V will appear between the N/O contact and the GND contact. When this output is not
active 24V will appear between the N/C contact and the GND.
Bell 24V Out:
These contacts are for switched 24V outputs whenever the Bell or Relay Only (No MP3 option) are activated These contacts
are for operating an external relay used to operate something like a lunch bell etc.
When this output becomes active, 24V will appear between the N/O contact and the GND contact. When this output is not
active 24V will appear between the N/C contact and the GND.
Common 24V Out:
These contacts are for switched 24V outputs whenever the Lockdown, Fire, Bell, Prebell or Relay Only (No MP3 option) tones
are activated. When this output becomes active, 24V will appear between the N/O contact and the GND contact. When this
output is not active 24V will appear between the N/C contact and the GND.

3.0 REMOTE WALL PLATES

There are two remote wall plates which can be connected to the A 4505 for remote triggering of the Lockdown, Fire and
Bell tones and for remotely cancelling any tones which may be active.

3.1 A 2069 Remote Plate

The Redback® A 2069 wall plate provides a remote means of triggering the Lockdown, Fire and Bell tones and the cancel
function. Connection is made to the Reback® A 4505 via a minimum of 9 wires as shown in Fig 3.2.
If standard Cat5 cable is used for the wiring, the plate can be located up to 30m away from the main unit. This can be
increased to 100m away using heavier guage cable, which reduces the voltage drop across this distance and ensures the
switch leds illuminate.
Fig 3.1
The Lockdown/Fire/Chime/Cancel switches on the Reback® A 2069 wall plate are connected to the corresponding con-
tacts on the rear of the Reback® A 4505. While the Lockdown,Fire and Bell leds on the wall plate are connected to the
Lockdown,Fire and Bell 24V outputs of the Reback® A 4505. The cancel led is not connected. A mimimum of nine wires
can be used if the ground connections of the Lockdown,Fire and Bell 24V outputs are linked and if the Lockdown/Fire/
Chime and cancel switch grounds are linked together (see Fig 3.2).
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