Orion Car Audio ORRPA Merkblatt

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ORRPA 2010-03
1
Connections and Installation Tips
Connect the RED wire to a constant (+) 12 volt 
1. 
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 amplifi er. 
Connect the BLACK wire to ground. The radio 
2. 
chassis or amplifi er ground terminal are gener-
ally good locations for this connection.
The BLUE wire should be connected to the am-
3. 
plifi ers 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.
The GRAY wire may be connected to any wire 
4. 
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, amplifi er 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-
fi cient 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. 
The GREEN LED built into the ORRPA lights after 
5. 
the delay period, indicating that the remote 
output is triggered.
The trigger delay is controlled by input volt-
6. 
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.
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.
 By combining two or more adapters, sequen-
7. 
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 amplifi er(s) 
thereby preventing turn-on transients in the 
signal chain from reaching the speakers.
The Remote Power Adapter will drive up to 1 
8. 
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.
Remote Power Adapter
Wiring Guide
Model ORRPA
+12V Constant (RED)
+12V out (BLUE)
 Signal Input from Head Unit (GRAY)
GND (BLACK)