Quad Sensor has four detection modes.
1) AC Current detection.
2) Analog Audio signal detection
3) Digital Audio signal detection
4) Composite (CVBS) and Component
Video (YPbPr) signal detection.
The Sensor directly interfaces with the
Axium R4 Router, providing a Boolean
contact state i.e. On / Off or Present /
Absent status.
The IR/Sensor port on the R4 Router is
conveyed through the Sensor to an IR
output port.
The Sensor has adjustments for ‘Off’ Delay,
and Gain or Sensitivity.
When an input threshold is exceeded the
Sensor output is set to a low resistance or
0V. The ‘Detect’ LED is illuminated when the
output is set low.
The output remains low until the sensed
input reduces below the thresholds
hysteresis plus the preset time delay, after
which the output is set to high resistance
(>1MΩ) or open circuit.
Power requirement: 12VDC 10mA
Switch ‘On’ Resistance: 3.5Ω
Switch Current: 0.22A continuous
0.8A pulsed <300µs
Detect LED indicator – Orange.
RCA input resistance: 200KΩ
Delay adjustment: 2 – 20 seconds
Gain: adjustment range suitable for
detecting a minimum of:
0.1A current in Mains conductor (must
be firmly seated & optimally rotated in
the sensing channel)
1.0V CVBS composite video or Y
component video signal
0.5V SPDIF Digital Audio signal
05V RMS analog audio signal
Cable length: 2m
RCA: 200VDC (50VAC)
Current: > 5KV~
IR emitter output socket
Permanent Mounting flange
Woodscrew and Cable Tie supplied
Dimensions: Width 32mm (1.24”)
Depth 55mm (2.18”)
Height 14mm (0.55”)
Weight: 32g (1.1oz)
Ambient Operating Temperature: 0 - 50°C
Ambient Operating Humidity: 5 – 95% noncondensing
Approvals: C-Tick CISPR22, FCC, RoHs.
MODE 1 – AC Current
Mounting Flange
Input RCA
Output RCA
CW = max
CW = max
Cable tie
Detect LED
2m Cable
IR Out
3.5mm 4 way
Phono Plug
The Sensor incorporates a highly sensitive
magnetic field strength detector.
Power cords carrying current to an appliance
have a source conductor (Phase) and a return
conductor (Neutral). The current in these
conductors is equal and opposite, which means
the magnetic field created by the current flowing
in one direction is cancelled by the current
flowing in the opposite direction. However the
Sensor can detect current in the cable when one
of the cable conductors is closer to the sensor
than the other. Note the sensor is centrally
located at the base of the sensing channel
Close conductor proximity is achieved in several
1) For Round cables the conductors are
usually internally twisted, therefore
rotate or slide the sensor along the
cable to find the best position for
optimal ‘ON’ and ‘OFF’ response.
2) For flat cables install the cable so that
the conductors are vertically stacked :
see image below.
The cable should not be laying flat in
the channel.
3) Ensure the cable is secured rigidly in
the base of the channel using the
supplied cable tie.
The cable termination is via a 4 way 3.5mm
Phono plug, and may be directly connected to
the Axium R4 router IR/Sensor port.
Function colours = cable’s conductor colours
Some appliances have minimal differences
between the ON & Standby power consumption,
alternative methods must be used to sense the
power status on these products.
This mode requires > 0.5V RMS (line level)
analog signal to trigger the Sensor. The nature of
analog music is such that the average signal
level is very low.
So to achieve good detection it is necessary to
increase the Delay and Gain significantly.
This mode should be viewed as an Audio
‘Present’ function.
This mode requires 0.5V signal on the Digital
Audio Coaxial connector
Most source devices output a signal even if there
is no audio track being played.
This mode should be viewed as a Device ‘ON’
This mode requires 1.0V sync signal on the
Analog Video to activate.
Both the Composite (CVBS) signal and the Y
Component Video signal can be detected.
Most source devices constantly output a sync
signal, even when no source is playing.
This mode should be viewed as a Device ‘ON’
Analog Audio
Digital Audio
Never expose the unit to moisture
Ensure that the unit is correctly powered by
a suitable DC supply.
The Gain and Delay trimmers have a
maximum turn angle of 270°, never force
the trimmer past the stops or the unit will
be damaged.
The device is only capable of detecting line
levels (1V – 2V max). Never plug speaker
level audio into the RCA input damage will
If there is a significant difference between
the source and control system earth
potentials then there is a risk that false
triggers may result.
Composite Video
It should be understood that if the audio source
is muted, or preamplifier level set very low, or
the audio source has widely varying dynamic
range, then the minimum RMS voltage may not
be met and the sensor will deactivate after the
delay time.
For best results some experimentation may be
required with the Gain and Delay trimmers.
YPbPr Video
Audio Engineering Ltd warrants its products to
be free of material and construction defects.
The warranty is for One Year from the date of
purchase by the original consumer.
Any products returned to either Audio
Engineering Ltd or the Axium Distributor and
found to be defective within the warranty period
will be repaired or replaced at no charge. The
warranty does not cover costs relating to
installation or removal of the product or
consequential damages.
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