Guardian Telecom Inc.
Installation and Operation
Model AS12
Page 7
Installing the AS12
Inspect the product for shipping damage.
Tip: If the product is damaged,
notify the carrier immediately.
Do not open or attempt to open the AS12 unit. There are no user
serviceable parts inside the unit.
Tip: Unauthorized modifications
void the product warranty.
Carefully plan input and output connections.
o
Identify input and output devices.
o
Prioritize amplifier inputs. Channel #1 is the highest priority. If
more than one amplifier fails at the same time, the standby
amplifier will only replace the highest priority, the lowest numbered
amplifier.
Tip: Familiarize yourself with
unit capabilities and functions.
See: Block Diagram and Unit
Operation details.
Choose a location on a standard 19" equipment rack with three rack
units (3U) of available space.
See: Specifications for overall
dimensions.
Do not apply power to the AS12 before connecting input and output
devices.
Ensure all devices that will be connected to the AS12 are turned off.
Follow all appropriate electrical codes for the installation.
Use the following sequence when wiring connections:
o
Audio
Inputs
See: Connection Details,
below.
o
Control Logic Inputs
o
Remove quick disconnect connector (Phoenix Combi-Con).
o
Wire the connector.
o
Plug the connector back into the unit.
Connect input power to a 120 volt AC power source.
Tip: 240 volt AC input power is
available as an option.
After all connections are complete, apply power to the AS12.
Apply power to all input devices.
See: Connection Details and
Unit Operation, below.
Connection Details
See: Block Diagram.
Connect Audio Inputs and Outputs to the Combi-Con connector as
follows:
Tip: The maximum switching
capacity of each circuit is 325
watts using a 70V paging line.
o
Terminal #1 – 70V/100V Audio Out Hot Lead (to Speaker).
o
Terminal #2 – 70V/100V Audio Out Common (to Speaker).
Tip: Terminal #1 is the left
terminal viewed from the wire
side.
o
Terminal #3 – 70V/100V Audio In Hot Lead (Amplifier Output).
o
Terminal #4 – 70V/100V Audio In Common Lead (Amplifier Output).
o
VOX Logic Input – Cable supplied with DA388
Tip: DB9 connector
o
Amp Failure Logic Output – For remote indications of faults.
