Installation & System Wiring
It is important to read this manual thoroughly before starting your installation
and always plan accordingly. Before installing any Wāvtech product, disconnect
the negative (ground) wire from the vehicle’s battery to avoid damage to the
vehicle or yourself. Following all guidelines will help provide years of enjoyment
with your Wāvtech linkT audio interface.
Ground Connection (GND): The GND terminal must be connected to a metal
part of the vehicle that is welded to the vehicle body with ground plane back to
the main battery ground attachment point (a.k.a. chassis ground). This wire
should be a minimum of 18AWG and as short as possible to minimize potential
for noise to enter the system. The chassis ground connection point should have
all of the paint removed and be scuffed to the bare metal. The ground wire
should be terminated by a ground specific interlocking terminal such as the
EARL terminal or ring terminal securely bolted to the vehicle with star or lock
washer and nut to prevent it from coming loose. Avoid using factory ground
points to reduce the chance of induced noise from other components.
Power Connection (+12V): The constant power connection should be made at
the vehicle battery when possible. For direct battery connection, a 1-amp fuse
must be installed in-line with the power wire within 18”of the battery and
securely connected to the positive battery terminal bolt with a ring terminal. If
connecting to another available co12V power source, a 1-amp in-line
fuse must be added at the connection point. The power wire should be a
minimum of 18AWG. Do not install the fuse until all other system connections
have been made.
Speaker Level Inputs (SPK): Connect the speaker wires from the source unit to
the corresponding input terminals at the interface. Always ensure correct
polarity of each channel when making these connections, as failure to do so can
severely effect sound performance.
Remote Input (REM IN): If the source unit has a remote output wire (provides
+12V only when turned on), connect it to the REM IN terminal. If a remote lead
is unavailable, the linkT is also enabled with an automatic turn-on circuit that
detects audio signal from SPK and RCA inputs, as well as DC-offset from SPK
inputs. While auto turn-on will work in most applications, there may be some
cases were detection level is not satisfactory and connecting a +12V trigger to
REM IN is needed.
Remote Output (REM OUT): Use the remote output to provide a +12V trigger
to turn on amplifiers or other components. This +12V output is generated
internally by the interface when turned on either by REM IN or automatic
sensing, and will provide over 500mA continuous current for external devices.
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