7
TD-000434 -01 -B
Inputs
Connect the Audio Inputs
— Figure 4 —
Balanced
— Figure 5 —
Unbalanced
— Figure 6 —
HEARTBEAT
GPO
GPI
USB
ROUTABLE INPUTS
2
1
4
3
There are four three-pin Euro-style connectors labeled 1 through 4 providing the audio
inputs on the DPA Amplifi ers. A single input can be mixed to one or a combination of
outputs. You can use from one to four of the inputs. The inputs are 10 k
Ω
balanced or
unbalanced, with a sensitivity of 4 or +14 dBu.
1.
Make sure your audio source devices are powered off.
2. Wire the audio line-level source to up to four Euro-style connectors (supplied). You
may use either balanced inputs (
Figure 4
) or unbalanced inputs
(
Figure 5
).
NOTE:
The DPA Series has the capability of routing the inputs to different
outputs. Be sure that the connections you make here match the confi guration
of the amplifi er.
3. Plug the connectors into the appropriate receptacles (ROUTABLE INPUTS 1, 2, 3, 4)
Figure 6
and
Figure 7
.
USB (Optional)
The USB cable (supplied) connects to a Mac or PC for use with the Amplifi er Navigator software. You can update the amplifi er fi rmware, save and
deploy confi guration fi les, and more. Refer to the Amplifi er Navigator online help for details.
GPIO/Heartbeat
There are two 3.5 mm Euro-style connectors on the rear of the amplifi er.
• Heartbeat The heartbeat output supplies a square wave signal of 1 Hz @ 3.3 V. This signal can connect to a life-safety system to monitor the go/
no-go condition of the amplifi er. The amplifi er must be completely incapable of producing output for the heartbeat signal to stop. A missing
heartbeat alerts the life-safety system of the disabled condition. A user-initiated condition such as muting the outputs, placing the amplifi er in
Standby mode, or placing the amplifi er in Mute All mode, does not stop the heartbeat.
• GPO The GPO can be triggered (High or Low fl ag) by one of the following faults:
◦
All Faults
◦
Thermal Limiting
◦
Impedance (selectable impedance boundaries)
• GPI The GPI Input allows you to do one of the following from a remote location:
◦
Put the amplifi er into Standby or Run mode,
◦
Mute or unmute all outputs, or
◦
Recall one of two Presets
— Figure 7 —
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+ -
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