Australian Monitor AMD200 - Manual (Page 5)

1 Mic/Line inputs
Balanced mic/line input connector on a 3.81 mm pluggable connector.
2 Mic/Line Dip Switches
The dip switches allow you to adjust the sensitivity or add a pad to the
corresponding input.
Only one DIP switch should be high at a time.
Switch 1 pads the line (-20 dB)
Switch 2 Adds 15 db of gain
Switch 3 Adds 30 db of gain
Switch 5 Adds 45 db of gain
3 Phantom Power Switches
Applies +34 VDC phantom power to the corresponding channels for electret or
condensor microphones.
4 BGM RCA Inputs
4 Line level Background Music inputs on stereo RCA connectors. Stereo inputs
are summed to mono for the amplifi er, but remain stereo for the line level
outputs
5 Line Level Outputs
Provides left and right line level outputs on 3.81 mm pluggable connector.
6 Phone
The phone input shares Mic/Line 2. Only one of these inputs should be used
at a time.
A suitable LIU (Line Interface Unit) will need to be used for most systems
Specs:
Nominal Level Input = 0 dBu
Bandwidth = 300 Hz to 3 kHz
7 Logic Controls
Low Power Mode: When Low Power mode is connected to ground the
unit will enter low power mode.
Evac, Bell, Alert and Chime: When one of these pins is connected to
ground the corresponding tone will be triggered.
VCA: When a RC1 or 500 kΩ pot is connected between the VCA pin and GND
audio can be remotely controlled.
If a short circuit is placed between the VCA pin and GND it will result in a mute.
Overall volume will always be a resultant of front panel, virtual volume
and VCA volume. For more information please see page 6.
VOX: The VOX output will go high when ever audio exceeds the threshold
on the selected mic channels within the GUI. the factory default has this
option turned off.
The output from the VOX output is:
+33 VDC at up to 200 mA
This can be used to drive an attenuator bypass, relay or similar to indicate
audio is present.
8 USB
For connection to the PC GUI. All DSP and adjustable settings are
confi gured via USB.
9 RS485
Used for ICON Control Panel integration and also the 3rd party control.
See page 14 for more details.
10 Battery Input
24 VDC input for emergency power systems.
11 Amp Outputs
100 V ,70 V, 8 ohm or 4 ohm amplifi er outputs.
12 230 V to 240 V / 115 V to 120 V
This power input is NOT auto-switching, contact Australian Monitor if the unit
needs to be changed from its shipped voltage confi guration.
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PAGE 5 AMD100/200 INSTALLATION AND OPERATION MANUAL
REAR PANEL
115VAC,50-60Hz 230VAC,50-60Hz