Orion Car Audio ORRPA 2009 11 1 User Manual

Remote Power Adapter  
Wiring Guide  
Model ORRPA  
Connections and Installation Tips  
1. Connect the RED wire to a constant (+) 12 volt  
source. This can be the memory wire for the  
head unit (check to see if the radio is code-  
protected before cutting or unplugging the  
memory wire) or the (+) 12 volt battery terminal  
of the amplifier.  
6. The trigger delay is controlled by input volt-  
age on the GRAY wire. A low voltage input  
will increase the delay to a maximum of three  
seconds, at (+) 12 volts the delay drops to about  
one second.  
2. Connect the BLACK wire to ground. The radio  
chassis or amplifier ground terminal are gener-  
ally good locations for this connection.  
3. The BLUE wire should be connected to the am-  
plifiers or signal processors that are being con-  
trolled be the Remote Power Adapter. It supplies  
a (+) 12 volt output rated at 1 amp, with a one  
to three second delay when triggered by signal  
on the GRAY wire.  
Note: If the adapter is being triggered by a  
speaker output, it will stay on (along with the  
devices it controls) for a short period after the  
head unit is switched off. This is due to the  
stored energy of a typical chip output and can-  
not be avoided. To prevent turn-off transient  
noise we recommend that the adapter be trig-  
gered by a dedicated remote output of the head  
unit whenever possible.  
4. The GRAY wire may be connected to any wire  
from the head unit that measures above (+) 5  
volts when the unit is on and below (+) 3 volts  
when the unit is shut off. This includes power  
antennas, amplifier remote outputs (typically  
(+) 12 volts but may be as low as (+) 5 volts in  
some OEM systems), or speaker outputs. A high-  
powered deck will normally supply between (+)  
6-7 volts DC at the speaker output; this is suf-  
ficient to trigger the Remote Power Adapter.  
Use this method for applications where the head  
unit lacks any dedicated switched outputs or it is  
easier to access a speaker terminal.  
7. By combining two or more adapters, sequen-  
tial turn-on of several devices can be achieved.  
This will permit a signal processor to power up  
after the head unit followed by the amplifier(s)  
thereby preventing turn-on transients in the  
signal chain from reaching the speakers.  
8. The Remote Power Adapter will drive up to 1  
amp of load at (+) 12 volts. If multiple devices to  
be switched exceed the 1 amp limit use a second  
adapter. For single-device loads that exceed 1  
amp a small relay (DEI part # 8616) can be used.  
The Remote Power Adapter is a better way to  
switch audio components since it eliminates the  
large inductive voltage peaks that a relay gener-  
ates.  
5. The GREEN LED built into the ORRPA lights after  
the delay period, indicating that the remote  
output is triggered.  
ORRPA 2009-11  
1

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